Science in the Ancient World PDF Download

Author: Jay Wile
Publisher:
ISBN: 9780989042420
Category :
Languages : en
Pages : 316

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Author: Evan Chen
Publisher: American Mathematical Soc.
ISBN: 1470466201
Category : Education
Languages : en
Pages : 311

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This is a challenging problem-solving book in Euclidean geometry, assuming nothing of the reader other than a good deal of courage. Topics covered included cyclic quadrilaterals, power of a point, homothety, triangle centers; along the way the reader will meet such classical gems as the nine-point circle, the Simson line, the symmedian and the mixtilinear incircle, as well as the theorems of Euler, Ceva, Menelaus, and Pascal. Another part is dedicated to the use of complex numbers and barycentric coordinates, granting the reader both a traditional and computational viewpoint of the material. The final part consists of some more advanced topics, such as inversion in the plane, the cross ratio and projective transformations, and the theory of the complete quadrilateral. The exposition is friendly and relaxed, and accompanied by over 300 beautifully drawn figures. The emphasis of this book is placed squarely on the problems. Each chapter contains carefully chosen worked examples, which explain not only the solutions to the problems but also describe in close detail how one would invent the solution to begin with. The text contains a selection of 300 practice problems of varying difficulty from contests around the world, with extensive hints and selected solutions. This book is especially suitable for students preparing for national or international mathematical olympiads or for teachers looking for a text for an honor class.

Author: Maria Elena de Obaldia
Publisher:
ISBN: 9781520578781
Category :
Languages : en
Pages : 193

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Do you want to develop useful skills, gain admission to top colleges, win scholarship money, excel at science competitions, and explore career options--all while having fun?By reading this book and using the advice within it, you will learn how to formulate a research project idea, find people who can help you complete it, effectively present it to diverse audiences, and participate successfully in research competitions. Whether you are a freshman rookie with a vague interest in science or a senior veteran striving for first place at the Science Talent Search, this guide will help you make the most of your research experience.With its testimonials from high school students whose lives were positively changed by their research experiences, this guide also aims to motivate and empower students who otherwise would not pursue science and research opportunities. In doing so, this book also seeks to encourage more students to pursue science and technology."What Shiv Gaglani and his co-authors offer with this book is a well-crafted and practical guide for any high school student who wants to participate in (and win!) the Intel Science Talent Search, Intel International Science and Engineering Fair, or any similar research endeavor. As sponsors of these programs, we regularly get requests for exactly this information from all around the globe. I am excited to be able to point students, educators and parents to this valuable resource." Wendy Hawkins, Executive Director of the Intel Foundation"The Winners' Guide offers terrific insight and information to encourage increased numbers of students and teachers to seek out lab-based experiences to enrich and strengthen their scientific acumen." Joann P. DiGennaro, President of the Center for Excellence in Education

Author: Joshua Foer
Publisher: Penguin
ISBN: 1101475978
Category : Science
Languages : en
Pages : 341

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The blockbuster phenomenon that charts an amazing journey of the mind while revolutionizing our concept of memory “Highly entertaining.” —Adam Gopnik, The New Yorker “Funny, curious, erudite, and full of useful details about ancient techniques of training memory.” —The Boston Globe An instant bestseller that has now become a classic, Moonwalking with Einstein recounts Joshua Foer's yearlong quest to improve his memory under the tutelage of top "mental athletes." He draws on cutting-edge research, a surprising cultural history of remembering, and venerable tricks of the mentalist's trade to transform our understanding of human memory. From the United States Memory Championship to deep within the author's own mind, this is an electrifying work of journalism that reminds us that, in every way that matters, we are the sum of our memories.

Author: Catherine Asaro
Publisher: LUNA
ISBN: 1426818823
Category : Fiction
Languages : en
Pages : 573

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For centuries the women of Aronsdale have lived freely among the green and misted valleys. Creatures of exotic beauty and sensuality, they possess powerful skills of enchantment…and young Allegro is no different. But her life—and Aronsdale's independence—is threatened when Jazid nomads invade, carrying Allegro into the desert as a prized trophy…or worse. Until an unexpected ally falls under her spell. From the moment feared Jazid warrior Markus Onyx sees the alluring beauty, he knows he has found his queen. But even the promise of love cannot quell Allegro's determination to save her homeland. Summoning her powers, she casts herself north—out of passion's grip—and into the dark heart of conflict.…

Author: Rachel Carson
Publisher: Houghton Mifflin Harcourt
ISBN: 9780618249060
Category : Nature
Languages : en
Pages : 404

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The essential, cornerstone book of modern environmentalism is now offered in a handsome 40th anniversary edition which features a new Introduction by activist Terry Tempest Williams and a new Afterword by Carson biographer Linda Lear.

Author: Chris Wright
Publisher:
ISBN: 9780982921128
Category : Education, Preschool
Languages : en
Pages : 288

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Author: Carrie Vaughn
Publisher: Macmillan
ISBN: 076533481X
Category : Fiction
Languages : en
Pages : 319

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More than superhero story, this is a tale of finding your true self and realizing that good and evil often come in various shades ... An adventurous story that is much more about the emotions than ability to fly.

Author: Salman Khan
Publisher: Twelve
ISBN: 145550839X
Category : Education
Languages : en
Pages : 155

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Book Description
A free, world-class education for anyone, anywhere: this is the goal of the Khan Academy, a passion project that grew from an ex-engineer and hedge funder's online tutoring sessions with his niece, who was struggling with algebra, into a worldwide phenomenon. Today millions of students, parents, and teachers use the Khan Academy's free videos and software, which have expanded to encompass nearly every conceivable subject; and Academy techniques are being employed with exciting results in a growing number of classrooms around the globe. Like many innovators, Khan rethinks existing assumptions and imagines what education could be if freed from them. And his core idea-liberating teachers from lecturing and state-mandated calendars and opening up class time for truly human interaction-has become his life's passion. Schools seek his advice about connecting to students in a digital age, and people of all ages and backgrounds flock to the site to utilize this fresh approach to learning. In The One World Schoolhouse, Khan presents his radical vision for the future of education, as well as his own remarkable story, for the first time. In these pages, you will discover, among other things: How both students and teachers are being bound by a broken top-down model invented in Prussia two centuries ago Why technology will make classrooms more human and teachers more important How and why we can afford to pay educators the same as other professionals/DIV How we can bring creativity and true human interactivity back to learning/DIV Why we should be very optimistic about the future of learning. Parents and politicians routinely bemoan the state of our education system. Statistics suggest we've fallen behind the rest of the world in literacy, math, and sciences. With a shrewd reading of history, Khan explains how this crisis presented itself, and why a return to "mastery learning," abandoned in the twentieth century and ingeniously revived by tools like the Khan Academy, could offer the best opportunity to level the playing field, and to give all of our children a world-class education now. More than just a solution, The One World Schoolhouse serves as a call for free, universal, global education, and an explanation of how Khan's simple yet revolutionary thinking can help achieve this inspiring goal.

Author: Richard R. Lindsey
Publisher: John Wiley & Sons
ISBN: 1118044754
Category : Business & Economics
Languages : en
Pages : 406

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Praise for How I Became a Quant "Led by two top-notch quants, Richard R. Lindsey and Barry Schachter, How I Became a Quant details the quirky world of quantitative analysis through stories told by some of today's most successful quants. For anyone who might have thought otherwise, there are engaging personalities behind all that number crunching!" --Ira Kawaller, Kawaller & Co. and the Kawaller Fund "A fun and fascinating read. This book tells the story of how academics, physicists, mathematicians, and other scientists became professional investors managing billions." --David A. Krell, President and CEO, International Securities Exchange "How I Became a Quant should be must reading for all students with a quantitative aptitude. It provides fascinating examples of the dynamic career opportunities potentially open to anyone with the skills and passion for quantitative analysis." --Roy D. Henriksson, Chief Investment Officer, Advanced Portfolio Management "Quants"--those who design and implement mathematical models for the pricing of derivatives, assessment of risk, or prediction of market movements--are the backbone of today's investment industry. As the greater volatility of current financial markets has driven investors to seek shelter from increasing uncertainty, the quant revolution has given people the opportunity to avoid unwanted financial risk by literally trading it away, or more specifically, paying someone else to take on the unwanted risk. How I Became a Quant reveals the faces behind the quant revolution, offering you?the?chance to learn firsthand what it's like to be a?quant today. In this fascinating collection of Wall Street war stories, more than two dozen quants detail their roots, roles, and contributions, explaining what they do and how they do it, as well as outlining the sometimes unexpected paths they have followed from the halls of academia to the front lines of an investment revolution.