Wednesday, August 26, 2020

Rhetorical Analysis Arts in Public Schools Essay Example For Students

Expository Analysis Arts in Public Schools Essay Subsidizing for the Arts in Public Schools Rhetorical Analysis expressions of the human experience, albeit essential to be open to younger students, has become a benefit for state funded schools because of spending cuts. In Arts Education in Secondary Schools: Effects and Effectiveness. by John Harlan it is focused on that expressions of the human experience touch off imagination that is urgent in youth advancement. In like manner, in Despite White House Report Advocating Arts Education, Budget Face Cuts. By Matt Prefer, distributed by BBC News, the significance Of keeping expressions of the human experience in pubic schools in tended to. The two articles adequately fill their need through a crowd utilization Of logos. Harlan effectively Wins his crowd With his utilization Of ethos and analogies, and Prefer has a similar accomplishment through allegorical language and master declarations. Directly from the beginning, Harlan makes his believability understood. He states, As a teacher, an understudy, and an analyst , this particular utilization of ethos is built up at an opportune time to procure the perusers regard. He keeps on setting up himself by expressing his report was not just a precise impression of the kids examined, yet additionally of myself. What's more, this companion checked on article furnishes the peruser with an ever guilty pleasure tot outlines, insights, and report clarifications to set a reasonable use tot logos. Among the numerous outlines gave, one of the best independent sets presents a one next to the other examination of the normal IQ of understudies who took expressions courses as a feature of their educational program, against the individuals who needed access to those courses. The graph is made simple for the peruser to fathom and the wonderful information shows clear proof in a bigger normal IQ among the individuals who had significant introduction to expressions courses over the individuals who hadnt. Moreover, Harlan would take strong measurements and level out state them to his crowd. For instance he expanded the information from his graphs by expressing, In year 10, understudies with introduction to human expressions had 67% higher insight scores than those without. . Not exclusively was clear proof gave in this report, yet an unmistakable translation tailed it, to ensure the crowd was in finished comprehension of the outcomes. Harlan additionally incorporated a few information that the regular American may see as unessential, for example, the pace Of pay the instructors Of expressions courses may get rather than that of educators of center classes (math, English, and so on:), anyway he sorted out shrewd analogies so his crowd could tot just identify with the data, however concur with it also. His crowd certainly had more information on Harvards perspective before the finish of the report. In a well known article distributed by BBC News, Despite White House Report Advocating Arts Education Budgets Face Cuts by Matt Prefer, it is indicated how significant expressions training is, the thing that it has instructed past ages, and why it is significant for the fate of our nation. Favor starts his article why furnishing his crowd with explicit foundation insinuation and setting up a sense tot proficiently towards his subject. This is followed up by straight up realities session the spending cuts the countries government funded schools will confront. He discloses to his crowd how the No Child Left Behind Law had harmed an understudies capacity to take more expressions courses related to the standard educational plan. An examination found that 47% of respondents guarantee their craft plans were being intruded on more frequently As well as, the exploration demonstrated expressions included understudies ordinarily perform 16 to 28 percent better than their companions Who are not associated with human expressions. and furthermore The examination demonstrated a relationship between's contribution in music and capability in math are only a couple Of his quite certain models. .ud16ff21463213cd378648be473a73b15 , .ud16ff21463213cd378648be473a73b15 .postImageUrl , .ud16ff21463213cd378648be473a73b15 .focused content zone { min-tallness: 80px; position: relative; } .ud16ff21463213cd378648be473a73b15 , .ud16ff21463213cd378648be473a73b15:hover , .ud16ff21463213cd378648be473a73b15:visited , .ud16ff21463213cd378648be473a73b15:active { border:0!important; } .ud16ff21463213cd378648be473a73b15 .clearfix:after { content: ; show: table; clear: both; } .ud16ff21463213cd378648be473a73b15 { show: square; change: foundation shading 250ms; webkit-progress: foundation shading 250ms; width: 100%; mistiness: 1; progress: obscurity 250ms; webkit-change: darkness 250ms; foundation shading: #95A5A6; } .ud16ff21463213cd378648be473a73b15:active , .ud16ff21463213cd378648be473a73b15:hover { haziness: 1; progress: murkiness 250ms; webkit-progress: mistiness 250ms; foundation shading: #2C3E50; } .ud16ff21463213cd378648be473a73b15 .focused content region { width: 100%; position: relati ve; } .ud16ff21463213cd378648be473a73b15 .ctaText { outskirt base: 0 strong #fff; shading: #2980B9; text dimension: 16px; textual style weight: intense; edge: 0; cushioning: 0; text-embellishment: underline; } .ud16ff21463213cd378648be473a73b15 .postTitle { shading: #FFFFFF; text dimension: 16px; textual style weight: 600; edge: 0; cushioning: 0; width: 100%; } .ud16ff21463213cd378648be473a73b15 .ctaButton { foundation shading: #7F8C8D!important; shading: #2980B9; fringe: none; outskirt range: 3px; box-shadow: none; text dimension: 14px; textual style weight: striking; line-stature: 26px; moz-outskirt span: 3px; text-adjust: focus; text-design: none; text-shadow: none; width: 80px; min-stature: 80px; foundation: url(https://artscolumbia.org/wp-content/modules/intelly-related-posts/resources/pictures/basic arrow.png)no-rehash; position: supreme; right: 0; top: 0; } .ud16ff21463213cd378648be473a73b15:hover .ctaButton { foundation shading: #34495E!important; } .ud16ff21463213cd378648be 473a73b15 .focused content { show: table; tallness: 80px; cushioning left: 18px; top: 0; } .ud16ff21463213cd378648be473a73b15-content { show: table-cell; edge: 0; cushioning: 0; cushioning right: 108px; position: relative; vertical-adjust: center; width: 100%; } .ud16ff21463213cd378648be473a73b15:after { content: ; show: square; clear: both; } READ: Alexander the Great EssayHis crowd, who are well on the way to be American guardians, can be fascinated by Prefers article, as it can lead them to need to ensure that expressions training is open to their own kids. To improve the estimation of the measurements gave, Prefer additionally talked with some key specialists in this exploration. He gave claims made by profoundly valid sources. One master declaration included, You see the American banner which is viewed as workmanship. You see any bit of work of art state you see a Picasso, you realize that that is Picasso in light of the fact that youve grown up finding out about expressions of the human experience ND being engaged with craftsmanship. This clarifies the nonappearance of craftsmanship would remove general information, Surely, the crowd can feel comfort in concurring with Pitter, yet in addition an infection towards their childrens future. The two articles give solid proof towards the cases they make, They persuade their crowd of their interpretation of the circumstance and permit the peruser to leave the article with more information than they had previously. The explanatory gadgets utilized by Harlan, and by Prefer had the option to viably lead their crowd to comprehension and identifying with the entirety of their proof.

Saturday, August 22, 2020

Power Utility Consumption Capm in Uk Stock Markets Free Essays

string(114) for estimations of hazard avoidance (? ) somewhere in the range of 0 and 10 and estimations of the beta coefficient (? ) somewhere in the range of 0 and 1. Valuing of Securities in Financial Markets 40141 †How well does the force utility utilization CAPM act in UK Stock Returns? ******** 1 Hansen and Jagannathan (1991) LOP Volatility Bounds Volatility limits were first inferred by Shiller (1982) to help analyze and test a specific arrangement of advantage estimating models. He found that to value a lot of advantages, the utilization model must have a high incentive for the hazard avoidance coefficient or have a significant level of instability. Hansen and Jagannathan (1991) developed Shiller’s paper to show the duality between mean-difference boondocks of benefit portfolios and mean-change outskirts of stochastic markdown factors. We will compose a custom article test on Force Utility Consumption Capm in Uk Stock Markets or on the other hand any comparative point just for you Request Now Law of one value instability limits are determined by computing the base change of a stochastic markdown factor for a given estimation of E(m), subject to the law of one value limitation. The law of one value limitation expresses that E(mR) = 1, which implies that the benefits with indistinguishable adjustments must have a similar cost. For this imperative to hold, the valuing condition must be valid. Hansen and Jagannathan utilize a symmetrical disintegration to figure the arrangement of least fluctuation markdown factors that will value a lot of benefits. The condition m = x* + we* + n can be utilized to ascertain rebate factors that will value the benefits subject to the LOP condition. Once x* and e* are determined, the base fluctuation rebate factors that will value the advantages can be found by changing the loads, w. Hansen and Jagannathan saw the instability limits as a limitation forced upon a lot of rebate factors that will value a lot of advantages. Consequently, when inferring the unpredictability limits, we figure the base change stochastic markdown factors that will value the arrangement of benefits. Rebate factors that have a lower difference than these qualities won't value the benefits effectively. Moreover, Hansen and Jagannathan demonstrated that to value a lot of advantages, we require rebate factors with a high unpredictability and a mean near 1. In the wake of inferring these limits, we can utilize this limitation to test applicant resource valuing models. Models that produce a rebate factor with a lower unpredictability than any markdown factor on the LOP instability can be dismissed as they don't create adequate unpredictability. Hansen and Jagannathan discover proof that utilizing LOP unpredictability limits, we can dismiss various models, for example, the utilization model with a force work broke down in papers, for example, Dunn and Singleton (1986). 2 Methodology To test whether the force utility CCAPM costs the UK Treasury Bill (Rf) and worth weighted market file returns, we initially figure the LOP instability limits. The unpredictability bound is inferred by computing the base difference rebate factors that accurately value the two resources for given estimations of E (m). The standard deviations of the stochastic rebate factors are then plotted on a diagram to give the LOP unpredictability bound appeared in figure one. Figure 1 here The CCAPM stochastic markdown factors are then determined for various degrees of hazard avoidance. The mean and standard deviation of these rebate factors are then plotted on the diagram and contrasted with the LOP markdown factor standard deviations. Valuing mistakes would then be able to be determined and broke down to see whether the advantages are evaluated effectively by the applicant model. To acknowledge the CCAPM model in estimating the benefits, we expect the stochastic markdown factors fluctuation to be more prominent than the change of the LOP unpredictability limits. It is additionally anticipated that evaluating mistakes and normal valuing blunders (RMSE) will be near zero. These outcomes will be broke down more intently in the later inquiries. 3 Power Utility CCAPM versus LOP Volatility Bounds In request for the force utility CCAPM to fulfill the Law of One Price instability bound test at any degree of hazard avoidance, the standard deviation f the CCAPM stochastic rebate factor at that degree of hazard avoidance must be exempt from the rules that everyone else follows of One Price standard deviation destined for the mean estimation of the CCAPM stochastic markdown factor at a similar degree of hazard avoidance. This is the invalid theory and in the event that it is acknowledged, at that point the model fulfills the test. The elective theory is that it the standard deviation of the stochastic rebate factor is beneath the Law of One Price standard deviation destined for the mean estimation of the stochastic markdown factor. In the event that the invalid theory is dismissed and the elective speculation is acknowledged, at that point the model doesn't fulfill the test. Table 1 here Figure 2 here Figure 2 shows LOP unpredictability limits and the standard deviations and methods for the CCAPM stochastic markdown factors for levels of hazard avoidance somewhere in the range of 1 and 20. It is clear the standard deviations (Sigma(m)) of the CCAPM stochastic limits factors are a lot of lower than the LOP instability limits relating to the methods (E(m)) of the CCAPM stochastic rebate factors. This is valid for any degree of hazard avoidance, in light of the fact that the whole CCAPM (green) line lies underneath the LOP unpredictability limits (dull blue) line. Table 1 shows the standard deviations of the stochastic rebate factors and the exact LOP unpredictability bound qualities, comparing to the stochastic markdown factor implies with the goal that the CCAPM can be officially tried. The entirety of the standard deviations are lower than their particular unpredictability bound qualities. Subsequently the invalid theory is to be dismissed and the elective speculation is to be acknowledged for all degrees of hazard avoidance somewhere in the range of 1 and 20. Besides it would face a challenge repugnance of at any rate 54 to acknowledge the invalid speculation. In this manner the force utility CCAPM stochastic rebate factor doesn't fulfill the Law of One Price instability bound test. These outcomes are reliable with the value premium riddle concentrate by Mehra and Prescott (1985). The examination looks at whether an utilization development based model with a hazard avoidance esteem limited to close to 10 precisely costs values. They have discovered that as per the model value premiums ought not surpass 0. 5% for estimations of hazard avoidance (? ) somewhere in the range of 0 and 10 and estimations of the beta coefficient (? ) somewhere in the range of 0 and 1. You read Force Utility Consumption Capm in Uk Stock Markets in class Papers However the normal watched value premium dependent on the normal genuine profit for almost riskless momentary protections and the SP 500 for the period 1989-1978 was 6. 18%. This is unmistakably conflicting with the expectations of the model. Specifically if hazard avoidance is near 0 and people are nearly chance unbiased, the model neglects to clarify why the sample’s normal value returns are so high. In the event that hazard avoidance is fundamentally positive the model doesn't legitimize the low normal hazard free pace of the example. The aftereffects of Mehra and Prescott’s (2008) exact examination are steady with our outcomes, in light of the fact that the force utility CAPM didn't fulfill our observational tests. 4 Kan and Robotti (2007) Confidence Intervals The Law of One Price instability limits determined to some degree 2 are liable to testing variety. We have determined point appraisals of the unpredictability limits, yet we didn't consider that our outcomes depend on a limited example of Treasury Bill and market returns. To all the more precisely test whether the force utility CCAPM breezes through the LOP unpredictability limits assessment, we have to distinguish the territory wherein the populace instability bound may lie. The territory utilized is that between the upper and lower 95% certainty interims for Hansen-Jagannathan instability limits got by Kan and Robotti (2007), appeared in table 2. In the event that the standard deviations of the CCAPM stochastic rebate factors lie beneath that zone for estimations of hazard avoidance somewhere in the range of 1 and 20, at that point the force utility CCAPM model is to be dismissed by this test. Table 2 here Figure 3 here Figure 3 contains point evaluations of the LOP unpredictability limits, the standard deviations and methods for the CCAPM stochastic markdown factors for levels of hazard avoidance somewhere in the range of 1 and 20 and the 95% certainty interims for the instability limits. The entirety of the standard deviations are beneath the territory in the middle of the upper and lower certainty interims for the instability limits. This demonstrates at a 95% conviction the CCAPM doesn't fulfill the LOP unpredictability bound test in any event, when examining mistakes are considered. Execution of Power Utility CCAPM In ongoing scholarly writing regarding the matter of benefit estimating models a typical proper technique for assessing model execution is to ascertain the valuing mistakes on a lot of test resources. In this report the test resources are the Treasury Bill and Market Index quarterly comes back from Q1 1963 to Q4 2009. The estimating blunder is determined as [pic] Where [pic], [pic] Treasury Bill and Market Index returns, and [pic] is the evaluating mistakes. Table 3 here At a model to accurately cost a benefit it would necessitate that the evaluating mistakes are as near zero as conceivable since the estimating blunder is a proportion of the separation between the model valuing portion and the genuine estimating piece. From Table 3 we can see that the estimating blunders for the various estimations of hazard avoidance are not near zero and the size of the mistakes really increments with the degree of hazard avoidance. We can likewise observe that the Route Mean Square Pricing Error (RSME) which quantifies the normal good ways from zero of the estimating mistakes isn't as near zero as we would trust and furthermore increments with the degree of hazard avoidance. In the event that we note the case for a hazard avoidance level of 20, at that point the RSME is 6. 76%, since this is quarterly information this works out to a yearly RSME of roughly 27%. With such enormous evaluating mistakes we would not anticipate that this model should perform emphatically. Hansen and Jagannathan (1997) found that f

Thursday, August 13, 2020

Peek Over Our Shoulders What Rioters Are Reading On July 16, 2015

Peek Over Our Shoulders What Rioters Are Reading On July 16, 2015 In this feature at Book Riot, we give you a glimpse of what we are reading this very moment. Here is what the Rioters are reading today (as in literally today). This is what’s on their bedside table (or the floor, work bag, desk, whatevskis). See a Rioter who is reading your favorite book? I’ve included the link that will take you to their author archives (meaning, that magical place that organizes what they’ve written for the site). Gird your loins â€" this list combined with all of those archived posts will make your TBR list EXPLODE. We’ve shown you ours, now show us yours; let us know what you’re reading (right this very moment) in the comment section below! Amanda Nelson The Witches: Salem, 1692 by Stacy Schiff (Little Brown, Oct. 27, 2015): Schiff wrote one of my favorite biographies (Cleopatra, which is mentioned downstream by another Rioter), so I snapped up her new history of the Salem Witch Trials as soon as I could. (ARC) The Exchange of Princesses by Chantal Thomas:  For consideration for the 2016 Best Translated Book Award (Im one of the judges). (Paperback) Too Loud a Solitude by Bohumil Hrabal: Im on a books-about-books kick after finishing The Rabbit Back Literature Society, and this slim little thing is just beautifully written. (ebook) Brandi Bailey Death with Interruptions by Jose Saramago: for my local book club, how hadn’t I read this before?!? (Audible) Mr. Splitfoot by Samantha Hunt: for pure pleasure, I really couldn’t wait to get my grubby little paws on this one (e-galley, pub date January 5, 2016) Leila Roy Heart of Betrayal by Mary E. Pearson: Second in the super-awesome Remnant Chronicles series. (ARC) He Who Fears the Wolf by Karin Fossum: I can’t stop reading Norwegian crime. (library, paperback) Duplicate Death by Georgette Heyer: Heyer is one of my go-to comfort authors. (library, hardcover) Jessica Woodbury   More Happy Than Not by Adam Silvera: catching up with this much-buzzed new release and it’s everything I hoped it would be. (Audible) The Night Sister by Jennifer McMahon: I read everything she writes, I just can’t help it, and her move to horror is making me really happy. (e-galley, August 4) Karina Glaser   Woundabout by Lev Rosen and illustrated by Ellis Rosen: Bought this middle grade book from the Strand and can’t stop reading it! (Hardcover) Pleasantville by Attica Locke: Got this from Book of the Month! So excited about this amazing monthly book membership! (Hardcover) Imaginary Girls by Nova Ren Suma: The Walls Around Us was my pick for best book in 2015 (so far), so of course I need to read everything else Nova Ren Suma has written. (Library Hardcover) Jamie Canaves   The Incarnations by Susan Barker: That cover. That’s all it took for me to say gimme. So far it’s good and dark and strange and I like how evil the evil character(s) are. (egalley, August 18) The Bees by Laline Paull: Can I say “that cover” again? I waited this long before reading it in order to forget at least some of the “OMG it’s soooo good!” social media postings. (ebook) Console Wars: Sega, Nintendo, and the Battle that Defined a Generation by Blake J. Harris: As a kid I used to risk whatever punishment would come my way to sneak into my brother’s room to play My Hero, Haunted House, and Teddy Boy on his Sega. I loved those games so much (still do) which made this book a must read. (Paperback) Derek Attig   Between the World and Me by Ta-Nehisi Coates: It’s Ta-Nehisi Coates. Come on. (e-galley) The Library at Mount Char by Scott Hawkins: Because other Book Riot-ers have been really enthusiastic about how good and weird and gory it is. They aren’t wrong. (ebook) Gold Fame Citrus by Claire Vaye Watkins: I’m a sucker for drought fiction and a pretty book. This one’s both. (galley, out September 29) E.H. Kern   The Fellowship: The Literary Lives of the Inklings. J.R.R. Tolkien, C.S. Lewis, Owen Barfield and Charles Williams by Philip Zaleski and Carol Zaleski: Because it’s about Tolkien. (ARC) Kristel Autencio   Smaller and Smaller Circles by FH Batacan: I read this when it was first published in the Philippines, but this edition by Soho Crime is substantially longer, so I felt that there is real value and going back to reread it.(e-galley) The Grace of Kings by Ken Liu: It’s a high fantasy novel that doesn’t follow the typical European medieval setting of most fantasies. Plus the political intrigue is something I enjoy. (e-book) Eric Smith   Wake of Vultures by Lila Bowen: I grabbed a copy of this at BEA, based solely on the Chuck Wendig blurb, not even realizing Lila Bowen was the pen name for one of my favorite authors on the Internet, Delilah S. Dawson (her latest YA novel, Hit, is fantastic). An adult fantasy, Wake of Vultures is about a woman raised by people who treat her poorly, and the revelation of her magical gifts. (ARC, out October 27th from Orbit) An Infinite Number of Parallel Universes by Randy Ribay: “As their senior year approaches, four diverse friends united by their weekly Dungeons Dragons game struggle to figure out real life.” Yeah okay I’m already sold based on that very first line of jacket copy, you guys. A geeky contemporary YA read with alternating narratives, this is a book to look out for. (ARC, out October 16th from Merit Press) Justina Ireland   Archivist Wasp by Nicole Kornher-Stace: I bought this book after quite a few people in my Twitter feed praised it. It’s the kind of book that is hard to explain, featuring a post-apocalyptic future and ghosts and weird mythology, a mish mash of genre tropes that sounds awful when I try to describe it but comes together beautifully in the book. (paperback) Walk on Earth a Stranger by Rae Carson: I love Carson’s books and I love well done historical fantasy, although this skirts closer to historical magical realism. A quiet book so far, but I’m enjoying it. (ARC) Chris Arnone To Kill a Mockingbird by Harper Lee: I snagged a nice, new, special-edition hardcover of Lee’s classic for a reread in anticipation of her new book. Speaking of which… Go Set a Watchman by Harper Lee: I’m writing this the day before release, but the first new Harper Lee novel in more than 50 years will be out in the wild by the time you read this. Like so many, I’ll be diving into this quite soon. (hardcover) Rachel Smalter Hall   The Clasp by Sloane Crosley: a breath of fresh (and funny) air after a streak of sad, heavy reads. (galley, out October 6) The Fishermen by Chigozie Obioma: I DNF’ed this several times before giving it one more go. Turns out third time’s a charm! The audio version is so great â€" a mysterious, universal, funny, and dark tale of boyhood. (audio) S. Zainab Williams   A Tale of Highly Unusual Magic by Lisa Papademetriou: My first middle grade read since middle grade! I chose this contemporary fairy tale about two girls on opposite sides of the world who are connected by a mysterious book called The Exquisite Corpse. (e-galley, October 6) Clockwork Angel by Cassandra Clare: In trying to catch up with the world of YA fantasy, Ive decided to read my way through The Infernal Devices, a popular trilogy about shapeshifting 16-year-old Tessa Gray and her dealings with Shadowhunters. (audio) An Ember in the Ashes by Sabaa Tahir: Im on the edge of my seat with this YA fantasy from debut novelist Tahir. Im enthralled (and driven to madness) by the struggles of Laia and Elias. (audio) Christy Childers   How to Be a Heroine OR, What I’ve Learned from Reading Too Much by Samantha Ellis: I spotted this in a bookstore and picked it up on the strength of the title alone. Loving it so far! (paperback) Nikki Steele   Physics of the Future: How Science Will Shape Human Destiny and Our Daily Lives by the Year 2100 by Michio Kaku: A fascinating book about the future of technology, medicine, AI, space travel, and energy. (audiobook) The Human Experiment: Two Years and Twenty Minutes Inside Biosphere 2 by Jane Poytner: To continue the science theme, a take on the first Biosphere 2 experiment from a person who was there. While some parts are fascinating so far, it does fall into drama and gossip a bit too much for my liking. (hardcover) Tasha Brandstatter The English Spy by Daniel Silva: A new release by one of my favorite authors. (hardback) The Black Tulip by Alexandre Dumas: Recommended to me by a fellow blogger. (audiobook) Andi Miller   Son of a Witch by Gregory Maguire: I loved Wicked so much that it’s taken me forever to get into this one. It seems an audio version has done the trick. (audio) Aram Mrjoian   Station Eleven by Emily St. John Mandel: Heard way too much hype about this book not to read it. I feel way behind already. (paperback) Jessica Pryde   The Summer of Chasing Mermaids by Sarah Ockler: I was totally judging a book by its gorgeous cover. Also, The Little Mermaid. Of course I was going to read it. (hardcover) A Bollywood Affair by Sonali Dev: I was scouring Overdrive for something to read that didn’t have a million holds and this one popped up. WHY DID I WAIT SO LONG?! (library audiobook) Rachel Weber Fledgling by Octavia E. Butler: I will never be bored of vampires thanks to writers like Butler. A killing machine that looks like a ten year old for a hero? So here for that. (Paperback) The Rest of Us Just Live Here by Patrick Ness is so so smart. You know how all that crazy stuff, vampires, apocalypses, aliens, always seems to happen at high school? Well what if you’re not one of the kids directly involved it and you’re just trying to graduate, thanks very much? (Galley, out August 27) The Colour of Magic by Terry Pratchett. Not my first time reading this book, and won’t be my last. I just really miss having Pratchett on the planet. (ebook) Rachel Manwill   Smokejumper: A Memoir by One of America’s Most Select Airborne Firefighters by Jason A. Ramos: Most of the wildfire fighting that happens in America takes place in the West, and a large portion, in one of my home states of Idaho. That alone was enough to interest me, but the sheer awesomeness of this dirty job makes this a must read. (print galley) The Invasion of the Tearling by Erika Johansen: On a recent road trip, my mom and I plowed through the audio of The Queen of the Tearling, the first in this adult fantasy trilogy. We finished it, and immediately downloaded this sequel, which we’re now listening to independently. And it is SO GOOD. (audiobook) Troy L. Wiggins   Three Parts Dead by Max Gladstone: Someone told me that this book would destroy my notions of Urban Fantasy, so I picked it up. (hardcover) A Wanted Woman by Eric Jerome Dickey: Dickey’s one of my favorite authors, but I haven’t read any of his books in a while. Will be interacting with him for my Day Job soon, and staff had to choose books to read. Of course, I chose this one. It’s so comfortable, like climbing back into bed in the morning. (hardcover) Jessica Tripler   Tailings, a Memoir by Kaethe Schwehn: A friend recommended this short work focusing on a formative period in the author’s life, when her fiance left her, she lived at a Lutheran retreat center in the Cascade Mountains, and she decided to pursue an MFA. In case you’re rolling your eyes at the MFA part, the prose is effortlessly lovely. It’s a really interesting take not just on a specifically Christian yearning, but on a desire for meaning and transcendence many of us seek. (paper) I Am Malala: The Girl Who Stood Up for Education and Was Shot By the Taliban by Malala Yousafzai. I snapped this one up in the Audible sale and what a great listen. The preface is read by Malala herself and the rest by the actor Archie Panjabi. I’m just in awe of her and so inspired by her resilience and her activism for girls’ education. (audio) Edd McCracken   When the Facts Change: Essays, 1995-2010 by Tony Judt: A collection of searing essays from the massive brain of the late historian Tony Judt. After reading Roald Dahl’s wonderful Matilda this was the opposite of a palate cleanser. Meaty, full-bodied subjects such as Israel, American foreign policy, and (with incredible prescience) the European Union have been guzzled down thus far. (hardcover) Johann Thorsson   FLEX by Ferrett Steinmetz: Contemporary urban fantasy in which magic can be distilled into a drug. Using it however, incurs a debt that manifests in misfortune. So, if you use magic to, say, to catch a bus you might otherwise miss, the FLUX you incur might cause a car crash nearby. Bureaucrat Paul Tsabo has some talent for finding ‘mancers, practitioners of the outlawed magic but it turns out he is a ‘mancer himself. Above all else, this book is pure fun so far. (e-book) The Obstacle Is the Way: The Timeless Art of Turning Trials into Triumph by Ryan Holiday. A self-help book that teaches readers not to learn how to overcome obstacles but that they are actually something to be used to help you on your way. We’ll see. (e-book) Emma Nichols   Cleopatra: A Life by Stacy Schiff: I will never again think of biographies as boring. Though difficult to separate the myth from the woman, Schiff has written a fascinating, factual history of Cleopatra. I love how, where history has drawn her as a conniving seductress, Schiff writes her as a strong, intelligent, and shrewd queen. (paperback) Valerie Michael   Black Nature: Four Centuries of African American Nature Poetry edited by Camille Dungy: This is a beautiful, extensive collection of nature poetry written by African Americans and I am enjoying it immensely. I am trying to read it slowly and not gobble all the poems up at once. (Paperback) Fates and Furies by Lauren Groff: I’ve heard a lot of talk about this from other Book Rioters and I just started it. (Paperback ARC) Hannah Depp   The Fine Art of Fucking Up by Cate Dicharry: One of my favorite covers, it has been sitting and taunting me for about 4 months. An academic send up novel, it is funny and edges around the absurd without ever going too far. (Paperback) You’re Never Weird on the Internet (Almost) by Felicia Day. It’s Felicia Day talking about homeschooling, feminism, making your way, acting and the great equalizing force (for good or ill) of the internet. It is a charming, fast read that I find myself thinking about during my work day. Always a good sign. (Paperback ARC- Out 8/11/15) Rapture by Carol Ann Duffy. I am trying not to devour this book all at once. Duffy’s poetry is honest, sensual and simple. I’m going to treat this book like a lady and take my time. (Paperback) The Ferguson Report from the Dept. of Justice Report, the Civil Rights Division with an introduction by Theodore Shaw. Sometimes things should be hard to read. While this is a government report, the events depicted and analyzed are far from dry. Shaw’s introduction serves as a guide through the book. It’s taking me some time, but it is well worth it. (Paperback) Alison Peters Tracking Trash: Flotsam, Jetsam and the Science of Ocean Motion by Loree Griffin Burns. I’m reading this for a young adult nonfiction class for school, and it’s a) schooling me and b) making me desperate to remove all plastics from my life, immediately. But conversely, I want a rubber ducky.  (Hardback, library copy) The Kids Are All Right by Diana Welch, Liz Welch, Amanda Welch Dan Welch. I never saw the movie, and lucky for me, because I would’ve been spoiled by this fantastic memoir, told from the point of view of all four kids who go from living The Life (mansions, pools, ponies) with their soap-star mom, to barely keeping it together when first their dad dies, and then their mom get cancer and slowly fades away. Makes you wanna hug your mom.  (Hardback, used) As for Me… Barbarian Days: A Surfing Life by William Finnegan: Reading this for coverage consideration. One of the great things about curating the BR new release newsletter and podcast is that I read all kinds of new releases, even if it isnt something Id normally choose. And nine times out of ten, Im pleasantly surprised. (e-galley) Avenue of Mysteries by John Irving: I keep almost starting this, and then getting so excited, I wait a few more days. This time Im gonna do it, for real! (e-galley) How to Be Black by Baratunde Thurston: Have heard nothing but high praise for this, so I think its time for me to read it. (paperback) My Life on the Road by Gloria Steinem: This is my first time reading Gloria Steinem! I did get to meet her a couple years ago she was amazing. (e-galley) Save

Saturday, May 23, 2020

Teaching the Philosophy of Science with Non-Scientific...

Teaching the Philosophy of Science with Non-Scientific Examples ABSTRACT: This essay explores the benefits of utilizing non-scientific examples and analogies in teaching philosophy of science courses, or general introductory courses. These examples can help resolve two basic difficulties faced by most instructors, especially when teaching lower-level courses: first, they can prompt students to take an active interest in the class material, since the examples will involve aspects of the culture well-known to the students; second, these familiar, less-threatening examples will lessen the students collective anxieties and open them up to learning the material more easily. To demonstrate this strategy of constructing and employing†¦show more content†¦In this essay, one possible strategy for overcoming this obstacle, which has been culled from personal experience, will be recommended by way of demonstration. In short, the suggestion is to devise examples and analogies from outside the realm of science and its history, but which can serve to both highlight and augment the actual scientific cases typically offered, as well as provide an interesting test-bed for the exploration of philosophical concepts. If these examples are tailored to reflect the interests of the students, most notably by drawing upon the humanities and popular culture, then a marked increase in class enthusiasm and participation will be the likely result. In short, these non-scientific analogies can help explain the nature and purpose of a philosophical/scientific concept. In what follows, consequently, we will develop a lengthy example which will demonstrate this very strategy: the philosophical concept will be Thomas Kuhns notion of a scientific paradigm, the key element in his theory of scientific revolutions; and the non-scientific topic adapted to explain this theory will be the history of musical styles and the structure of musical compositions. The concept of aShow MoreRelatedAncient Greece And Modern Medieval Europe1686 Words   |  7 PagesMany historians and scientists regard Europe as completely devoid of interest in the history of science. Contemptuously, medieval Europe is most often referred to as the â€Å"Dark Ages,† the epithet clearly illustrating the struggles of the time period and disdain for this part of history. The modern perception of medieval society is overwhelmingly dominated by a skewed interpretation of a barbaric, war-torn civilization barely surviving through suffrage of plague and poverty that stifled nearly everyRead MoreThe Balance Between Evolution And Creation1075 Words   |  5 PagesThe Balance Between Evolution and Creation By: Ashton Lyons In America, public schools are allowed to teach any philosophy explaining the existence of all species on Earth. This ranges from christian creationism to scientific evolutionary timelines. Many have disputes about which should be taught in public schools. However, there are many valid reasons why Evolution should not be the only human timeline (Wanjie, 56) taught to children in public schools. Reasons such as natural interpretation,Read MoreScience Can Not Be Defined1531 Words   |  7 Pages Science Cannot be Defined Calvin Berndt Philosophy of Science Spring 2015 05/03/2015 â€Æ' There are a multitude of conflicting theories that aim to conclude the definition of science, and all of them have underlying issues that make them inadequate in giving a definitive definition. According to Dictionary.com the current prevailing definition of science is â€Å"the systematic study of the structure and behavior of the physical and natural world through observation and experiment (Dictionary, n.dRead MoreThe Most Important Influence On An Scholarly Work1318 Words   |  6 Pagesfor innovative scholarship. 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A person who believes in the biblical model of creation is viewed by some non- believers as a naive, narrow-minded religious fanatic who is not willing to look at the observable evidence with an open mind. Because the evolutionary idea of origins has been so widely accepted by the scientific community, many people have reasoned that the creation model should be completely rejected without fairly examining its claims. Even many Christians

Tuesday, May 12, 2020

Tenessee Williams The Glass Menagerie - 1957 Words

TThis essay will discuss the metaphors associated with the characters in The Glass Menagerie and how each of these metaphors represents a fragment of the American Dream. She is like a piece of her glass collection, too fragile to be brought into the real world without being devastated. Because of her sensibility, she has avoided dealing with people for so long that when she finally tries to socialise with Jim, she fails to see that she is being manipulated. Amanda is a faded Southern belle who is trying to relive her past by using her daughter to mirror her former self. She represents nostalgia for the Old South in the play. Tom is a struggling poet who dreams of real adventures but has to provide support for his family. Jim, despite†¦show more content†¦However, Tom feels that he does not belong there; he feels that he belongs somewhere else. He dreams of adventures, like his father before him. On the top of that, his mother constantly tries to inflict him with a feelin g of guilt in order to make sure that he stays at home. She claims that he will end as faithless and irresponsible his father. Like his sister, he is victim of his mother’s expectations and comparisons . Unlike Laura, however, he refuses to have his life dictated by them . He protests his right to individualism: It seems unimportant to you, what Im doing--what I want to do. As if Tom’s life situation wasn’t already difficult enough as it is, it is made even worse by an important paradox. He constantly tries to escape from his work and familial responsibilities by drinking and going to the movies yet, when given the opportunity, he only uses his artistic prowess to recreate a miserable scene from his past. By writing this play, Tom becomes the victim of his own art as he is unable to use his own talents to bring happiness upon his life. Even after having escaped his monotonous life, he continues to be haunted by his past. Tom feels guilty for abandoning h is sister who depended on him. This feeling of guilt is epitomized in his final speech at the end of the play. â€Å"Oh, Laura, Laura, I tried to leave you behind me, but I am more faithful than I intended to be!† Therefore, Tom, the poet, becomes incapable of expressing any emotionShow MoreRelatedTenessee Williams: the Glass Menagerie1551 Words   |  7 PagesThe Glass Menagerie The glass menagerie is a superb work of art by Tennessee Williams. It is a play that highlights the various realities and desperations of its characters in their response to a confused society. Williams has an admirable talent for creating a play that’s genre is serious and has a tragic ending; yet he keeps the story interesting to the audience whether it be through reading it as a text or in the theater. The story of the Glass Menagerie is an emotional recount of memoriesRead MoreLiterary Analysis of The Glass Menagerie by Tenessee Williams1462 Words   |  6 PagesThe Glass Menagerie by Tennessee Williams had ordinary people in an ordinary life that closely resembled the influences of Williams’ personal life while having reoccurring themes and motifs throughout the story. The play has been done by many with some variations in the scripts and setting while still clinging to the basic ideas of the original play. Amanda Wingfield was a complex character that encompassed many facets of her personality. She longed to have the life she had as a girl and youngRead MoreAnalysis Of The Play The Glass Menagerie 1281 Words   |  6 PagesDevin Simpson Professor Carusp The Glas Menagerie 4/29/15 Within the play The Glass Menagerie, Amanda, Laura, and Tom Wingfield all of have their own dreams that are continuously destroyed by the harshness of reality. Amanda, stuck in the ease of her youth, tries to relive her life through her daughter Laura. Being crippled both physically and mentally, Laura struggles to escape the bubble she has created around herself that her mother Amanda so strongly tries to force her out of. Tom whom, althoughRead MoreBelonging Essay4112 Words   |  17 PagesHeat and Dust Winch, Tara June, Swallow the Air Gaita, Raimond, Romulus, My Father Miller, Arthur, The Crucible: A Play in Four Acts Harrison, Jane, Rainbow’s End Luhrmann, Baz, Strictly Ballroom - film De Heer, Rolf, Ten Canoes - film Shakespeare, William, As You Like It Skrzynecki, Peter, Immigrant Chronicle Dickinson, Emily, Selected Poems of Emily Dicksinson Herrick, Steven, The Simple Gift Baillie, Alan, The China Coin Russell, Willy, Educating Rita Cleven,Vivienne et al (eds), Conte mporary Indigenous

Wednesday, May 6, 2020

Six Sigma Class Intro and Ppt Free Essays

INTRODUCTION TO SIX SIGMA CONTENT FLOW†¦ ? Understanding Six Sigma ? Definition ? World at Six Sigma examples ? Six Sigma Scale ? Why Six Sigma ? Six Sigma Methodologies Tools ? Define ? Measure ? Analyze ? Improve ? Control WHAT’S IN A NAME? Sigma is the Greek letter representing the standard deviation of a population of data. ? Sigma is a measure of standard deviation (the data spread) ? ? ? SIX SIGMA IS †¦ ? A statistical concept that measures a process in terms of defects – at the six sigma level, there 3. 4 defects per million opportunities ? A defect is anything that results in customer dissatisfaction Six Sigma is a methodology and a symbol of quality ? HOW OFTEN ARE WE DELIVERING ON TIME? ? If the target time is 30 Mins, the graphs below show two curves with average at 25 Mins 30 mins 30 mins s s 0 10 x 30 2 sigma 20 40 50 0 10 20 x 30 4 sigma 40 50 ? ? How many standard deviations can you â€Å"fit† within customer expectations? Managing by the average doesn’t tell the whole story. We will write a custom essay sample on Six Sigma Class Intro and Ppt or any similar topic only for you Order Now The average and the variation together show what’s happening. MANAGING UP THE SIGMA SCALE Sigma 1 2 3 4 5 6 % Good % Bad 30. 9% 69. % 93. 3% DPMO 691,462 308,538 66,807 69. 1% 30. 9% 6. 7% 99. 38% 99. 977% 0. 62% 0. 023% 6,210 233 3. 4 99. 9997% 0. 00034% EXAMPLES OF THE SIGMA SCALE In a world at 3 sigma. . . ? In a world at 6 sigma. . . ? There are 964 U. S. flight cancellations per day. The police make 7 false arrests every 4 minutes. 1 U. S. flight is cancelled every 3 weeks. There are fewer than 4 false arrests per month. ? ? ? In one hour, 47,283 international long distance calls are accidentally disconnected. ? It would take more than 2 years to see the same number of dropped international calls. WHY SIX SIGMA? †¢ At GE, Six Sigma added more than $ 2 billion to the bottom line in 1999 alone †¢ Motorola saved more than $ 15 billion in the first 10 years of its Six Sigma effort AlliedSignal reports saving $ 1,5 billion through Six Sigma. †¢ †¢ Six Sigma is about practices that help you eliminate defects and always deliver products and services that meet customer specifications How are these savings realized? cost of scrap? cost of rework? cost of excessive cycle times and delays? Benefits of added capacity and man-hours DMAIC – THE IMPROVEMENT METHODOLOGY Define Objective: DEFINE the opportunity Measure Analyze Improve Control Objective: Objective: Objective: MEASURE current ANALYZE the root IMPROVE the performance causes of problems process to eliminate root causes Key Measure Tools: †¢ Critical to Quality Requirements (CTQs) †¢ Sample Plan †¢ Capability Analysis †¢ Failure Modes and Effect Analysis (FMEA) Key Analyze Tools: †¢ Histograms, Boxplots, MultiVari Charts, etc. †¢ Hypothesis Tests †¢ Regression Analysis Objective: CONTROL the process to sustain the gains. Key Define Tools: †¢ Cost of Poor Quality (COPQ) †¢ Voice of the Stakeholder (VOS) †¢ Project Charter †¢ As-Is Process Map(s) †¢ Primary Metric (Y) Key Improve Key Control Tools: Tools: †¢ Solution Selection †¢ Control Charts Matrix †¢ Contingency †¢ To-Be Process and/or Action Map(s) Plan(s) DEFINE – DMAIC PROJECT WHAT IS THE PROJECT? $ Project Charter Cost of Poor Quality Stakeholders Voice of the Stakeholde r Six Sigma What is the problem? The â€Å"problem† is the Output ? What is the cost of this problem ? Who are the stake holders / decision makers ? Align resources and expectations ? DEFINE – CUSTOMER REQUIREMENTS WHAT ARE THE CTQS? WHAT MOTIVATES CUSTOMER? SECONDARY RESEARCH Market Data THE Voice of the Customer Key Customer Issue Critical to Quality Listening Posts Industry Intel Industry Benchmarking Customer Service Customer Correspondence PRIMARY RESEARCH Survey s OTM Observations Focus Groups MEASURE – BASELINES AND CAPABILITY WHAT IS OUR CURRENT LEVEL Sample some data / not all data Current Process actuals measured against the Customer expectation OF PERFORMANCE? Descriptive Statistics Variable: 2003 Output Anderson-Darling Normality Test A-Squared: P-Value: Mean StDev Variance Skewness Kurtosis N Minimum 1st Quartile Median 3rd Quartile Maximum 0. 211 0. 854 23. 1692 10. 2152 104. 349 0. 238483 0. 240771 100 0. 2156 16. 4134 23. 1475 29. 6100 55. 2907 ? ? ? What is the chance that we will succeed at this level every time? 0 10 20 30 40 50 95% Confidence Interval for Mu 95% Confidence Interval for Mu 21. 1423 19. 5 20. 5 21. 5 22. 5 23. 5 24. 5 25. 5 26. 5 25. 1961 95% Confidence Interval for Sigma 8. 690 11. 8667 95% Confidence Interval for Median 95% Confidence Interval for Median 19. 7313 26. 0572 ANALYZE – VALIDATED ROOT CAUSES WHAT ARE THE KEY ROOT CAUSES? Experimental Design Data Stratification Regression Analysis Process Simulatio n Six Sigma y = f (x1, x2, x3 . . . xn) Critical Xs IMPROVE – POTENTIAL SOLUTIONS HOW CAN WE ADDRESS THE ROOT CAUSES IDENTIFIED? ? WE Address the causes, not the symptoms. Generate Evaluate Clar ify Decision y = f (x1, x2, x3 . . . xn) Critical Xs Divergent | Convergent IMPROVE – SOLUTION SELECTION HOW DO WE CHOOSE THE BEST SOLUTION? Solution Selection Matrix Qualit y Solution Sigma Time CBA Other Score Time Cost Six Sigma Solution Right Wrong Implementation Good Bad O Nice Idea Nice Try X Solution Implementatio n Plan CONTROL – SUSTAINABLE BENEFITS HOW DO WE †HOLD THE GAINS† OF OUR NEW PROCESS? ? ? Some variation is normal and OK How High and Low can an â€Å"X† go yet not materially impact the â€Å"Y† Pre-plan approach for control exceptions Direct Process Customer: CCR: Date: Measuring and Monitoring Loan Service Manager ? Process Owner: Process Description: Process Control System (Business Process Framework) Flowchart Customer Sales Processing Branch Manager Key Measure ments P1 – activity duration, min. Specs /or Targets Measures (Tools) Responsibility Contingency Where (Who) (Quick Fix) Frequency 35 Remarks UCL=33. 48 Review appliation for completeness P2 – # of incomplete loan applications Individual Value Apply for loan 1. 1 Application Review 25 Complete meeting information Mean=24. 35 No Application Complete? 1. 2 Processing 1. 3 Credit review 15 0 10 20 30 LCL=15. 21 1. 5 Disclosure 1. 4 Review Observation Number How to cite Six Sigma Class Intro and Ppt, Essay examples

Sunday, May 3, 2020

Contract Law on Rights of Buyers and Sellers-Samples for Students

Question: Write a Research Proposal on Caparison between CISG and SA Contract law on rights of buyers and sellers to Conformity and notice. Answer: Introduction The sale of goods in South Africa is governed by the South African law of sales. Sale is a form of contract through which a person agrees to deliver free possession of goods to another in exchange of money. The origin for the contract of sale in South Africa is derived from roman consensual contract. Sale is concluded through a simple agreement and no sale can take place without transfer of ownership and a price[1]. The international law in relation to the sale of goods is governed by the United Nation Conventions on the Sale of Goods (CISG). Articles 38 and 39 of the article specifically deal with the provisions related to the examination of goods with respect to the contract of sale. According to section 35 of the Sale of Goods Act the buyers have the right to examine goods in relation to a contract for sale in South Africa. The research will be conducted to do a comparative analysis of the buyers rights in terms of conformity under the South African Law of Contract and the CISG ar ticle 38 and 39. Article 38 and 39 lay down relatively strict rules about the times in which a buyer must inspect goods under a contract and give notice of non -conformity. At the same time article 39 does provide a large window of two years[2]. The research will investigate to what degree is this more or less buyer friendly than the approach under the present South African Contract Law. Research Objectives To analyze the rights of buyers to examine goods under the South African Contract Law To analyze the rights of buyers to examine goods under the CISG To compare the rights of buyers to examine goods in SA law and the CIGS To determine which approach is more buyer friendly Research questions What are the rights of buyers with respect to examination of goods in a contract for sale in SA law? What are the rights of buyers with respect to examination of goods in a contract for sale in CIGS? What is the difference between the rights of buyers to examine goods in SA law and the CIGS? Which of the two approaches are more buyers friendly? Purpose of research Sale of goods is the most common form of trade in both international and domestic market. Both international and domestic laws have provided for certain provisions which give specific rights to the buyer and the seller. The motive of law behind such rights is to maintain equality, fairness and balance of bargaining power between the buyer and the seller. The purpose of this research is to find out whether the South African law for sale of goods is more or less buyer friendly than the CIGS so that it can be amended to obtain better results. Literature Review Introduction This section of the research will analyze the relevant literature available in relation to contract law for the sale of goods. The sections will also identify the existing gaps between the literatures and compare and contrast the different views of the authors. CISG The CISG has been brought to existence in order to provide global guidelines for the sale of goods. According to Schwenzer (2016) when it comes to the sale of goods in relation to the domestic legal system it may be assumed that the relationships between the parties to the contract of sale is established on the basis equal bargaining power along with the equal access to knowledge, however when it comes to cross border dealings the case is not the same[3]. There may be a contract between parties belonging to a developed country with that of parties belonging to an under developed or developing county. The differences in sophistication, unequal bargaining power, along with unequal reach to knowledge are considered, and provide a significant challenge towards drafting a law of sales which establishes balance in power between buyer and seller of different background. conformity Conformity of goods most of the civil law domestic legal systems are largely influenced by Roman law which had been based strictly on the principle of caveat emptor which means let the buyer beware. The liability of the seller is based on any special promise, fraudulent action or any stipulation had been given along with dolus[4]. This provides a clear privilege to the seller. Moreover the complications in various domestic legal systems are high as the systems distinguish between case of non-delivery and cases of Non-conformity. In case the goods in context do not have the attributes in relation to the contract it is treated as aliud through which the rules of non-delivery are triggered and not peius which is in relation to Non-conformity rules[5]. Notification requirements and examination According to Germain a duty to examine the goods has been imposed on the buyer by the CISG along with the duty to provide notice to the seller in relation to non-conformity[6]. In case the buyer is not able to abide by his duties to inspect and notify the seller he would lose any right in case there is a case of non-conformity. The provisions have been one of the most debated sections with respect to the Vienna conference. According to Shin (2016) the representatives of the developing countries have rejected the provisions emphasizing on consequences of the non flexible rule in relation to buyers of such countries. They had also been provided support by countries whose domestic legal systems do not have any notice requirements. The sale of goods Act The legislation is the primary domestic law which governs the sale of goods in the country. The legislation provides that the buyers have the right to the examination of goods as contrary to the duty provided by the CISG. According to Schwenzer the provisions with respect to the sale of goods in SA is prima facie more buyer friendly than that of the CISG[7]. However upon in depth examination of the provisions of CISG it said that this is not the case as it appears. Conclusions The literature which has been identified above along with many other literatures would be considered in the research by the researcher to bring out the literature gap. The conclusion would also contain the point of view of the researcher after the literature has been reviewed. Comparison between CIGS and South African Contract Law A uniform and standard law for the sale of goods in the international market is provided through the United Nations Convention on Contracts for the International Sale of Goods 1980 (CISG). On the other hand the provisions related to the sale of goods in SA are governed by the Sale of Goods Act (SGA)[8]. A buyer is defined as any person purchases or agrees to purchase certain goods. Quality of goods refers to the condition or state of the goods which have been purchased. In contract law conformity of goods means the verification of the purchased goods with respect to the quality which had been decided upon through the contract of sales. According to Section 35 of the SGA when the delivery of goods to the buyer by the seller has been completed and the goods have not been examined previously, the goods would not be deemed to be accepted by the buyer until and unless he is provided with a reasonable opportunity of proper examination of the goods in order to ensure that the quality of the goods is in accordance to the contract[9]. further it is stated by the section that when the delivery of goods is tendered to the buyer by the seller, it is the duty of the seller in case a request is made to provide appropriate opportunity to the buyer for the examination of goods in order to ensure that they are in accordance to the terms of the contract. In case such opportunity is not used by the buyer and the goods are retained it is deemed that the buyer has accepted the goods. On the other hand according to CISG article 38 and 39 lay down relatively strict rules about the times in which a buyer must inspect goods under a contract and give notice of non -conformity. At the same time article 39 does provide a large window of two years. Data Analysis and Discussion There are two types of data analysis, which can be used for the completion of research, namely, quantitative data analysis and qualitative data analysis[10]. For the purpose of this research the researcher would conduct a qualitative data analysis as the data collection method of the researcher is only secondary sources through the use of available literature. Secondary data sources refer to the data that is collected by some other person other than the researcher. One of the advantages of using qualitative data analysis using secondary data sources is that it saves the time the researcher would otherwise spent in collecting the data, in case the researcher had used quantitative data analysis. The use of secondary sources is also a cost-effective process as compared to the usage of primary source of data. The qualitative data analysis has helped the researcher to ensure that the topic is discussed thoroughly and comprehensively. The aim of using qualitative data analysis is to assess the content of the topic and understand the concepts, ideas. The discussion would be based on the findings of the researcher along with the research questions. Conclusion This part of the research would be based on the final conclusion gained by the researcher through the discussion. There have been various studies which have depicted that the domestic legal systems provide a more buyer friendly approach as compared to the international provisions. The main aim of the researcher would be to identify that to what extent are these findings true. The researcher would also provide certain strong recommendations with respect to the findings and towards the establishment of a proper balanced system of rights between the buyers and the sellers References Andersen, Camilla Baasch. "A New Challenge for Commercial Practitioners: Making the Most of Shared Laws and Their Jurisconsultorium."UNSWLJ38 (2015): 911. Christie, Richard Hunter, and Graham Bradfield.Christie's Law of Contract in South Africa. LexisNexis, 2016. Germain, Claire M. "CISG Language and Translation Issues."Browser Download This Paper(2016). Glesne, Corrine.Becoming qualitative researchers: An introduction. Pearson, 2015. Ishida, Yasutoshi. "CISG Articles 38 39 and Japanese Commercial Code Article 526: Examination of Goods and Notice of Non-conformity:" One Month No Prejudice" Test."56 (2015): 1-38. Kroll, Stefan, Loukas Mistelis, and Pilar Perales Viscasillas. "Introduction to the CISG."UN Convention on Contracts for the International Sale of Goods (CISG). Nomos Verlagsgesellschaft mbH Co. KG, 2015. Mackey, Alison, and Susan M. Gass.Second language research: Methodology and design. Routledge, 2015. Panneerselvam, R.Research methodology. PHI Learning Pvt. Ltd., 2014. Sale of Good Act SA Schwenzer, Ingeborg. "Divergent interpretations: reasons and solutions." (2014): 102-119. Schwenzer, Ingeborg. "Ethical standards in CISG contracts."Uniform Law Review22.1 (2017): 122-131. Schwenzer, Ingeborg. "The CISGA fair balance of the interests of the seller and the buyer." (2016): 79-91. Shin, Choong-il. "Review of a United States District Court Decision under the CISG regarding Conformity of Goods."23.3 (2016): 333-362. Andersen, Camilla Baasch. "A New Challenge for Commercial Practitioners: Making the Most of Shared Laws and Their Jurisconsultorium."UNSWLJ38 (2015): 911. Schwenzer, Ingeborg. "The CISGA fair balance of the interests of the seller and the buyer." (2016): 79-91. Schwenzer, Ingeborg. "Divergent interpretations: reasons and solutions." (2014): 102-119 Shin, Choong-il. "Review of a United States District Court Decision under the CISG regarding Conformity of Goods."23.3 (2016): 333-362. Prejudice" Test."56 (2015): 1-38. Germain, Claire M. "CISG Language and Translation Issues."Browser Download This Paper(2016). Schwenzer, Ingeborg. "Ethical standards in CISG contracts."Uniform Law Review22.1 (2017): 122-131 Sale of Goods Act (South Africa) [Christie, Richard Hunter, and Graham Bradfield.Christie's Law of Contract in South Africa. LexisNexis, 2016

Wednesday, March 25, 2020

The Physics Of Golf Essay Example For Students

The Physics Of Golf Essay As anyone who has played a round of golf will attest to, the sport is based around many fundamental principals of physics. These basic laws are involved with every aspect of the game from how a player swings the club to how the ball moves through the air on its way toward the pin. It is the challenge that physics presents to the golfer that has allowed the game, and equipment used, to develop so drastically over the past one hundred years. The first golf balls used were called featheries. They were made with a horsehide cover packed with wet goose feathers. When the balls dried they became extremely hard. The major flaw with the featheries was that they could not be used when the conditions were wet because they would soften again. Despite the flaw of the featheries, they remained the only ball used up until the middle of the 19th century when the revolutionary gutta-percha ball was invented. The new ball, sometimes referred to as a ?guttie?, was molded from the warmed, dried gum of the sapodilla tree. These balls were cheap to manufacture and opened up the game of golf to a more diverse socio-economic group. This in turn made the game of golf very popular, which led to dramatic improvements in golf balls in the next decades. In 1900 a unique event occurred. Some claim that it can be called the first professional sports endorsement. The Spalding Company paid Englands Harry Vardon a considerable sum of money to come to the United States to demonstrate what he could do in winning tournaments using the latest ball design. He won the U.S. Open using the new rubber-wound Haskell ball. This led to another major revolution in the design of the golf ball. Not only was this ball cheap to manufacture, but also it could be hit farther than any other ball previously used. The Haskell ball was such a success that it was not until 1968 that the two-piece balls of today emerged in the market. Obviously a lot of time, effort, research, and money were put forth into the development of the golf ball, as it is manufactured today. The reason for this ongoing process is to help a golfer use some laws of physics to his advantage (i.e. placing spin on the ball to create lift) while finding a work around for other physical properties that can be detrimental to a players golf game (i.e. drag which causes the ball to slow down and fly closer to the ground). When examining the physics, which surrounds the game of golf, one must carefully consider all aspects of the game, not just the golf ball or even just the equipment being used. The stroke is by far the most important aspect to any participants round of golf. Among the scientific community, an event, such as the golf stroke, is thought of as a dynamic process using the physical principals of mechanics based on Newtons Laws of motion. The stroke is actually three separate events; the swing of the club, the impact of the club head with the ball, and the flight of the ball toward the target. It is the sum of these three parts that makes a successful stroke. Before delving into the details of the golf stroke, it is important for one to consider the general concepts of motion that control the swing of the golf club. Two men are most influential in this area of study, Galileo Galilee and Isaac Newton. It is the principles of these two men that will be used during the discussion of the physics of golf. A brief explanation of momentum, moment of inertia, torque, centripetal force, and centrifugal force can be located in ?Appendix 4?. These terms were derived from the experiments and research of first Galileo, and then expanded upon by Newton. Although neither of these two men are solely responsible for all of the physical principals presented in this paper, Galileo and Newton were two of the most influential men in these areas of study. We will write a custom essay on The Physics Of Golf specifically for you for only $16.38 $13.9/page Order now When a scientist attempts to explain something, he or she always develops a model to work with. In the case of the golf stroke, it has become evident that comparing such an action to the snapping of a whip lends itself nicely to a deeper understanding. The model appropriate to the study of a whip, such as a bullwhip, would be a large number of small rods with flexible connections. This is important to understanding how the whip works. At the start of the motion, as the hand moves the handle of the whip, the momentum of the whip increases. The hand exerts a force on the whip handle for a time, producing, according to Newtons Second Law, an increase of momentum. This force moving the whip handle a few feet also does work on the whip, giving it kinetic energy. When the hand stops, the whip exerts a force on the hand, and this force in turn decreases the momentum of parts of the whip. Thus, momentum is not conserved because a force acts and there is no displacement because the hand remai ns still. During the stroke, successive parts of the whip are stopped, and the kinetic energy of these parts is fed into the successively smaller and smaller sections of the whip. The kinetic energy of a body depends on its mass and the square of its velocity according to the equation KE = ? m v2. Therefore, at the start of the stroke, the total mass of the whip is moving with a moderate speed. Toward the end of the stroke, a much smaller mass must be moving at a much higher speed to have the same kinetic energy. This is shown to be true by the cracking of the whip, or the sonic shockwave the tip of the whip sends out. Although it may not seem possible, a human swinging a golf club works in a very similar manner to the whip. First, one must consider where the energy for the stroke comes from. In the whip it obviously came from the muscles in the arm. However, when swinging a golf club, much more energy is required, in fact it has been estimated that the amount of energy transferred into the golf ball during impact is about two horsepower. Because muscle generates approximately 1/8th horsepower per pound, it would take about 32lbs of fully loaded muscle to generate enough energy to produce two horsepower. If however the muscle is not suitably loaded, then more then 32lbs of muscle would be needed. If that seems to the reader to be a lot of muscle, their assumption is correct; that is a lot of muscle. The average person does not have that much muscle in their arms. Instead they must rely on the much larger muscles in their back and legs. The person uses their body to transfer the energy from these muscles into their arms. The explanation of how this is done can be found in ?Appendix 3? of this paper. It shows a graph of the five torques which work on the arms during the swing. This is the first aspect of how the whip works; the transferring of energy. When interviewed, several professional golfers, including Sam Snead, Tommy Amour, Cary Middlecoff and Frank Bea rd, although unable to give the scientific reasons behind their down stroke, stated in one form or another, that ?the left shoulder pulls the left arm?. The scientific explanation of what they stated is that as the horizontal pull of the left shoulder on the left arm produces a positive angular acceleration to help with the downswing. This shows clearly that the energy is transferred from the body into the arms and subsequently down the shaft of the golf club and into the ball. The way this energy was calculated was through the use of a computer program. It was setup so that it gave the total kinetic energy of the arms and the club and the kinetic energy of each of them separately. This can be seen by curves A, B, and C in appendix 1 (please refer to the explanation at the bottom of the graph for an explanation of the curves). A fourth curve, D, was also graphed. This curve shows that work done by the golfer as a function of the downswing angle as he applies the torque on his arms. To skip ahead to the point, the total kinetic energy of the system when the club head makes contact with the ball comes 71% from the work TS * a(i), 13% from the decrease in the potential energy of the system, and 16% from the work down on the system in the shift of the golfer toward the target. The total kinetic energy is very important to ones game of golf. According to the conservation of momentum principal, with any given club and any given ball, the speed of the ball depends directly on the speed of the club head. Therefore it is necessary to use the large muscles of the body to generate the necessary club head speed (about 100mph) needed to hit the ball far enough in order to approach the possibility of playing par golf. The chart below demonstrates how ones game would be affected if they were not able to generate enough club head speed. Assuming that the golfer is able to sink each of his puts, the first example reveals that if the golfer were only able to drive the ball 160 yards, he would lose 15 strokes because of his lack of distance off the tee. As his driving distance increases, the number of strokes the golfer would loose decreases until he is able to drive the ball 230 yards (or hit the ball with a club head traveling about 100mph). Yards 160 170 180 190 200 210 220 230Stroke Lost to par 15 12 9 7 5 3 1 0The physics surrounding a game of golf is not just based on the swing as shown above. While 50% of the game of golf is the stroke used to hit the ball, the other 50% of the game is how the ball travels through the air toward the pin. Because the flight of the ball cannot be controlled with the same precision by the golfer that he can control his swing with, many developments have been made toward creating an ideal golf ball. Just looking back as few as 50 years one can see the tremendous affect physics has played on the design of the golf ball. First, it was discovered that worn golf balls tended to stay in the air longer because their uneven surface caused a greater spin as the ball passed through the air at a high velocity. Later it was determined that dimples on the golf ball serve the same purpose, and not only that, improve on the affect first observed by the ware and tare on the original golf balls. In the past 5 years, golf balls are being manufactured with three different sized dimples placed in strategic locations on the ball. This allows the ball to remain in the air as long as possible while sacrificing as little energy to overcoming drag as possible. .u14ee81ddd83b96a4a154a610b9428b4c , .u14ee81ddd83b96a4a154a610b9428b4c .postImageUrl , .u14ee81ddd83b96a4a154a610b9428b4c .centered-text-area { min-height: 80px; position: relative; } .u14ee81ddd83b96a4a154a610b9428b4c , .u14ee81ddd83b96a4a154a610b9428b4c:hover , .u14ee81ddd83b96a4a154a610b9428b4c:visited , .u14ee81ddd83b96a4a154a610b9428b4c:active { border:0!important; } .u14ee81ddd83b96a4a154a610b9428b4c .clearfix:after { content: ""; display: table; clear: both; } .u14ee81ddd83b96a4a154a610b9428b4c { display: block; transition: background-color 250ms; webkit-transition: background-color 250ms; width: 100%; opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #95A5A6; } .u14ee81ddd83b96a4a154a610b9428b4c:active , .u14ee81ddd83b96a4a154a610b9428b4c:hover { opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #2C3E50; } .u14ee81ddd83b96a4a154a610b9428b4c .centered-text-area { width: 100%; position: relative ; } .u14ee81ddd83b96a4a154a610b9428b4c .ctaText { border-bottom: 0 solid #fff; color: #2980B9; font-size: 16px; font-weight: bold; margin: 0; padding: 0; text-decoration: underline; } .u14ee81ddd83b96a4a154a610b9428b4c .postTitle { color: #FFFFFF; font-size: 16px; font-weight: 600; margin: 0; padding: 0; width: 100%; } .u14ee81ddd83b96a4a154a610b9428b4c .ctaButton { background-color: #7F8C8D!important; color: #2980B9; border: none; border-radius: 3px; box-shadow: none; font-size: 14px; font-weight: bold; line-height: 26px; moz-border-radius: 3px; text-align: center; text-decoration: none; text-shadow: none; width: 80px; min-height: 80px; background: url(https://artscolumbia.org/wp-content/plugins/intelly-related-posts/assets/images/simple-arrow.png)no-repeat; position: absolute; right: 0; top: 0; } .u14ee81ddd83b96a4a154a610b9428b4c:hover .ctaButton { background-color: #34495E!important; } .u14ee81ddd83b96a4a154a610b9428b4c .centered-text { display: table; height: 80px; padding-left : 18px; top: 0; } .u14ee81ddd83b96a4a154a610b9428b4c .u14ee81ddd83b96a4a154a610b9428b4c-content { display: table-cell; margin: 0; padding: 0; padding-right: 108px; position: relative; vertical-align: middle; width: 100%; } .u14ee81ddd83b96a4a154a610b9428b4c:after { content: ""; display: block; clear: both; } READ: Animal Rights Vs. Human Rights EssayAs demonstrated by any golfer who can hit a ball in a straight line, the aerodynamic forces at work on a golf ball are what make the flight of the ball so unique. If one were to stand behind a golfer and watch the flight of the golf ball, that person would not see a parabolic arch as one might expect. Instead, the ball will appear to climb in a straight line for a few seconds and then begin to fall back to earth slowly. According to Newtons First Law (a body continues in a straight line at a constant speed unless a force acts on it) the observed path of the ball does not seem possible. As the designer of the golf ball would be quick to p oint out, it is the aerodynamic force on the dimpled, spinning, ball, traveling at a high speed, that was balancing the vertical force of gravity which caused non uniform motion in the path of the balls flight. British scientist, P.G. Tait, performed the first experiments done with the aerodynamics of a golf ball in 1887. Professor Tait showed through his studies the importance of spin on the flight of the golf ball. He states that in his youth he was taught, ?all spin is detrimental?. He practiced vigorously to hit a ball virtually spin free. After completing his research, Tait wrote, ?I understand it now, too late by 35 years at least?. What Tait was referring to was the importance of spin on a golf ball. He and his son performed experiments where, ?we fastened one end of a long untwisted tape to the ball and the other to the ground, and induced a good player to drive the ball (perpendicularly to the tape) into a stiff clay face a yard or two off, we find the tape is always twiste d; no doubt to different amounts by different players?say from 40 to 120 or so turns per second. The fact is indisputable.? Professor Tait clearly states that a ball driven with spin about a horizontal axis with the top of the ball coming toward the golfer has a lifting force on it that keeps the ball in the air much longer than would be possible without spin. What the scientist was observing was the competing affects of lift and drag. While it is possible to generate equations and solutions for different swings and velocities and come up with an optimum ratio of lift to drag, it has been stated that it is better for the individual golfer to discover this for himself because not every swing is the same. Research has shown that a larger spin produces a larger drag, which makes the ball slow down more rapidly and thus decreases the distance it travels, but a larger spin produces more lift, which keeps the ball in the air for a longer time and thus allows it to fly father. An experienc ed golfer knows that the force of lift will superceded the force of drag, however it is left up to the individual to find their own balance between these two forces. The next logical step in the explanation of the physics surrounding a game of golf is to relate the two aspects just discussed. The following text is an explanation of what happens between the time when the energy of the swing is transferred into the club and the flight of the ball; or more specifically how the collision between the club head and the ball transfers spin and energy into the ball. First, the collision must be considered. During the collision between the club head and the ball, several things happen. The club head is slowed down, and the ball is sent off with a high speed at some angle above the horizontal with a high rate of spin. This all happens in less than a thousandth of a second while the club head moves less than an inch. Such a short time makes it extremely difficult to observe what is happening during the collision. The force between the ball and the club head averaged over the time of the collision is greater than 3000lb and high speed photography has shown the ball to be considerably flattened against the club head. The elastic properties of the ball come into place at this point because it is those properties that allow the ball to be compressed and then spring away from the face of the club at a high velocity. Although there is no scientific proof of what exactly happens at the point of impact, through the use of physics, several educated guesses can be made. Momentum is conserved: Since the club head is at the end of a somewhat flexible shaft, one may, to a fair degree of approximation, assume that the club head in its horizontal motion at the bottom of the swing acts as a free body. Therefore, the horizontal momentum of the club head before the collision must be the same as the sum of the horizontal momentum of the club head and the ball after the collision. It is important to note that the vertical momentum is not conserved because the arms and shoulders pull up with a force on the club head. The collision is inelastic: By simply holding a golf ball and feeling how firm it is, one can easily see that is not perfectly elastic. Therefore, some mechanical energy must be lost. Newton was the first to experiment with this property of collisions. He found that the ratio of the speed with which the ball leaves the floor to that with which the ball approaches the floor to be practically a constant over a large range of speeds. The constant is called the coefficient of restitution. For a perfectly elastic ball the coefficient is one. For a ball that does not rebound at all, the coefficient would be zero. This also applies to collisions that happen at an angle such as with the face of the golf club and the ball. The ball slides and rolls on the clubface: Consider this example as an explanation for how a golf ball generates its spin from the uneven surface of the face of a golf club. As anyone who has thrown a bowling ball will attest to, the ball slides down the alley at first. Sin ce there is some amount of friction between the ball and the lane, the ball slows down, which allows the ball to begin rolling. After the ball has traveled some distance it no longer slides and just purely rolls. The same is true for the face of the golf club. As the collision occurs the ball begins to slide toward the top of the face of the club. However, because the friction force between the ball and clubface is so great it quickly begins to spin (roll) off the top of the club. This generates the tremendous amount of spin necessary to keep the ball a loft for drives at or above 230 yards. It is these three factors together that the quantity known as effective loft is derived from. The effective loft of any club is given as EL = L + a(i) B(i) ? Y. L is the loft of the club a(i) and B(i) are angles that are dependant upon each swing and each person performing the swing and Y is the back swing angle of the arm. From effective loft of the club, one can estimate the components of dra g and lift on the golf ball. The following table expresses the variations that are possible during the swing. B(0) B(i) EL + Spin + Lift +B(0) + B(i) + EL Spin Lift Y B(i) + EL Spin Lift Y + B(i) EL + Spin + Lift +TS + B(i) EL + Spin + Lift +Al + B(i) EL + Spin + Lift +As an example, the third line reveals that when the back swing angle of the arms is decreased, the effective loft is decreased, the spin is decreased, and the lift is decreased. As one can see through the material presented above, the golf swing is a multi-stage process. It is not simply the swing, or the transfer of energy, or the flight of the ball that is subject to the laws of physics. The first aspect of the golf stroke, which is based upon physical principals, is the downswing of the golf club. The golfer must do two things in order to have a successful shot. He must first generate enough energy to hit the ball a significant distance. And then he must transfer this energy into the golf club. The energy is derived from the muscles in the golfers body. As was previously stated it takes at least 32lbs of muscle to generate the necessary two horsepower for hitting the golf ball. Most of this energy comes from the legs and back of the individual. Then, the golfer uses his body and arms, along with the shaft of the golf club like a whip. Just as a whip transfers energy from its large mass at the handle down to the tip causing a dramatic acceleration, the golfer transfers the energy through his body into the shaft of the golf club, which flexes. When the golfer snaps his wrist at the point of impact, all of the energy is transferred into the club head allowing it to achieve a velocity of 100mph or even greater. .uecf6d85b52c089b5ce0d051bf7d716f3 , .uecf6d85b52c089b5ce0d051bf7d716f3 .postImageUrl , .uecf6d85b52c089b5ce0d051bf7d716f3 .centered-text-area { min-height: 80px; position: relative; } .uecf6d85b52c089b5ce0d051bf7d716f3 , .uecf6d85b52c089b5ce0d051bf7d716f3:hover , .uecf6d85b52c089b5ce0d051bf7d716f3:visited , .uecf6d85b52c089b5ce0d051bf7d716f3:active { border:0!important; } .uecf6d85b52c089b5ce0d051bf7d716f3 .clearfix:after { content: ""; display: table; clear: both; } .uecf6d85b52c089b5ce0d051bf7d716f3 { display: block; transition: background-color 250ms; webkit-transition: background-color 250ms; width: 100%; opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #95A5A6; } .uecf6d85b52c089b5ce0d051bf7d716f3:active , .uecf6d85b52c089b5ce0d051bf7d716f3:hover { opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #2C3E50; } .uecf6d85b52c089b5ce0d051bf7d716f3 .centered-text-area { width: 100%; position: relative ; } .uecf6d85b52c089b5ce0d051bf7d716f3 .ctaText { border-bottom: 0 solid #fff; color: #2980B9; font-size: 16px; font-weight: bold; margin: 0; padding: 0; text-decoration: underline; } .uecf6d85b52c089b5ce0d051bf7d716f3 .postTitle { color: #FFFFFF; font-size: 16px; font-weight: 600; margin: 0; padding: 0; width: 100%; } .uecf6d85b52c089b5ce0d051bf7d716f3 .ctaButton { background-color: #7F8C8D!important; color: #2980B9; border: none; border-radius: 3px; box-shadow: none; font-size: 14px; font-weight: bold; line-height: 26px; moz-border-radius: 3px; text-align: center; text-decoration: none; text-shadow: none; width: 80px; min-height: 80px; background: url(https://artscolumbia.org/wp-content/plugins/intelly-related-posts/assets/images/simple-arrow.png)no-repeat; position: absolute; right: 0; top: 0; } .uecf6d85b52c089b5ce0d051bf7d716f3:hover .ctaButton { background-color: #34495E!important; } .uecf6d85b52c089b5ce0d051bf7d716f3 .centered-text { display: table; height: 80px; padding-left : 18px; top: 0; } .uecf6d85b52c089b5ce0d051bf7d716f3 .uecf6d85b52c089b5ce0d051bf7d716f3-content { display: table-cell; margin: 0; padding: 0; padding-right: 108px; position: relative; vertical-align: middle; width: 100%; } .uecf6d85b52c089b5ce0d051bf7d716f3:after { content: ""; display: block; clear: both; } READ: Procrastination EssayAt the point of impact, more physical properties take over. As the club comes in contact with the ball, two important factors are most prevalent. First, the ball is semi- elastic and therefore the ball flattens somewhat when it comes in contact with the face of the club. This allows the ball to spring away at a tremendous velocity, which is also based on the principal of conservation of momentum. The other important factor that happens at impact is the generation of spin. At first, the ball begins to slide up the face of the club toward the top, however, because of the large coefficient of friction; the ball stops sliding and begins rolling. This actio n gives the ball a rotation around its horizontal axis, which creates lift and drag. Lift and drag are the final aspects of how physics relates to golf. As the ball spins, it creates lift by disturbing the flow of air around the ball. The dimples help greatly with this. However, drag is also produced, which threatens to pull the ball back toward the earth. It is the job of the golfer and the golf ball manufacturer to generate enough lift either through the swing or the dimpled design of the golf ball so that the upward lifting force counteracts the downward forces of gravity and drag. As anyone who has played a round of golf has observed, the spin created with modern clubs and ball design more then compensates for drag and gravity and allows the ball to stay aloft for a long time. Because of the unique challenges that physics present during a game of golf, it will be a long time before anyone is able to master the game. In an endeavor to improve scores many miracle products have claimed to lower ones score, however it is evident that only those ideas and products, which have a basis in science, have stayed on the market. The golf ball is a prime example of this. It has made dramatic changes from being made of dried goose feathers to the two piece dimpled design of today. All of the improvements on the ball were based around trying to give the golfer and edge in lowering his score and working around some of the laws of physics, which prevent him from reaching perfection. Appendix 4The following terms will be defined based on their relevance to the physics of golf: momentum, moment of inertia, torque, centripetal force, and centrifugal force Momentum:Newtons first law defines a property of a body called inertia, which describes what happens to a body when no force acts on it; the inertia of a body is said to be measured by its mass. When acted upon by a constant unbalanced force, the body will experience acceleration proportional to the mass of the body. The mass of a body is proportional to its weight. Momentum is then defined as the mass of a body multiplied by its velocity. Like velocity, momentum, has a direction as well as magnitude, making it a vector quantity. From the definition of momentum, for constant mass the rate of change of momentum is the product of the mass and its acceleration. Newtons second law suggests that an unbalanced force on a body is associated with its acceleration. For the purpose of this paper, Newtons second law states t hat the mass of a body multiplied by its acceleration is proportional to the force acting on it, and the acceleration is in the direction of the force. The way in which momentum applies to golf is through the transfer of momentum from the golf club to the golf ball. Before the collision, the club head is moving at a speed of 100mph along the horizontal. After the collision, for a club without loft, the ball is moving off at a high velocity, and the club head continues in the follow-through at a somewhat reduced velocity. For a club without loft, these velocities will also be horizontal. The momentum is such that the total momentum before the collision is equal to that of the momentum of the club head after the collision plus the momentum of the ball. Moment of Inertia:The linear acceleration of a body when acted upon by a constant force depends on its mass, which as already stated is quantity proportional to its weight. The larger the mass is, the smaller the acceleration will be for a given force. Similarly, when a constant torque acts on a body, its angular acceleration will depend on the mass of the body and on how the mass is distributed in the body. The combination of mass and its distribution in the body is called its ?moment of inertia?. When the axis of rotation of the body is chosen such that more of the mass is far from the axis, the moment of inertia will be larger. Thus the moment of inertia will depend of the choice of axis. This concept is easily demonstrated with the help of a golf club. When the club is help at the grip end between two fingers and let hang so that the shaft is along a vertical line, it is very easy to rotate the club along a vertical axis. But when the club is held near the center of the shaft, where it balances between the same two fingers, the same torque produces a much smaller angular acceleration. The moments of inertia in the two cases differ by a factor of 10. This same affect can be observed when a club is first waggled about the grip in the usual way and then waggled while holding the head. Torque: Torque is the term used to describe twist in a quantitative manner. Two factors, the amount of force applied and the distance over which it is applied determine torque. The size of the torque is found by multiplying the size of the force by the length of the lever arm, the lever arm being the shortest distance from the line along which the force acts to the axis about which the bod y may rotate. The force must be in a plane perpendicular to the axis of the rotation. Centrifugal Force: This force can be observed when a golf ball is placed on the dashboard of an automobile just inside the windshield and is observed while the vehicle travels around turns. One will notice that the ball will always roll to the outside of the curve and rolls more quickly the tighter the turn. Actually, the ball does not accelerate; it appears to accelerate since there is no centripetal force to make it turn in the same path as the car. Its motion is the result of a lack of centripetal force rather than the result of an outwardly directed force being applied to the ball. Centripetal Force:According to Newtons Second Law, the centripetal force on a body moving in a circle is proportional to the mass of a body multiplied by its centripetal acceleration. The centripetal acceleration increases with the radius of the circle on which it moves and with the square of the angular velocity of the motion. Appendix 1The following curves were drawn based on the information gathered and analyzed with the use of a computer. The curves are calculations for the energies present during a swing. Curve A shows the total kinetic energy as it develops throughout the swing. Curve B shows how the kinetic energy of the arms varies throughout the downswing. Curve C shows how the kinetic energy of the club alone varies throughout the swing. Curve D shows the work done by the golfer as he applies the torque by his arms to the system. (graph taken from source #5)Appendix 2(original drawings but concept from source #5)These drawings illustrate the forces on a golf ball during its flight. The first set of pictures shows how the air moves around the ball during its flight. The first pictures show that when there is some spin, the air pressure around the ball is changed because of the turbulence created by the rotation. The picture below that shows how the air would move if there were no spin. The other two pictures demonstrate how using spin can change the flight of the ball. For example, the top picture is showing that a ball spinning on a vertical axis in a clockwise direction will travel to the right because of the airflow around the ball. The bottom picture on that side is illustrating another example of how air can flow around a ball with no spin. The other two illustrations show a three-dimensional (on the top) and a two-dimensional (on the bottom) view of some of the vectors involved with the flight of a golf ball. The illustrations show the effective loft of the club, the lifting vector as well as the path of the golf club and the angle at which the face points. Appendix 3This is a graph of the five-torques acting on the arms as they vary throughout the downswing. Curve A shows the constant torque TS of the golfer on the system. Curve B shows the torque that depends mainly on the acceleration of the wrist-cock-angle. The torque represented by curve C depends mainly on the square of the velocity of the wrist-cock-angle. Curves D and E show the torques resulting from action of gravity and the golfers weight shift respectively. The torque T shows how the sum of the five-torques on the arms varies during the downswing and becomes very large just prior to the club colliding with the ball. (graph from source #1)Bibliography1. Abrahams, Jonathan (1994). Club Smarts. New York: Lyons Burford. 2. Andrisani, John. (1997). The Tiger Woods Way. New York: Random House. 3. Beard, James (1982). Turf Management for Golf Courses. New York: McMillan. 4. Jones, Trent (1993). Golf By Design. New York: Little, Brown, and company. 5. Kroen, William. (1992). The Why Book Of Golf. California: Price Stern Sloan. Physics