AN IMAGINARY TALE

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An Imaginary Tale

Author : Paul J. Nahin
ISBN : 1400833892
Genre : Mathematics
File Size : 80.64 MB
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Today complex numbers have such widespread practical use--from electrical engineering to aeronautics--that few people would expect the story behind their derivation to be filled with adventure and enigma. In An Imaginary Tale, Paul Nahin tells the 2000-year-old history of one of mathematics' most elusive numbers, the square root of minus one, also known as i. He recreates the baffling mathematical problems that conjured it up, and the colorful characters who tried to solve them. In 1878, when two brothers stole a mathematical papyrus from the ancient Egyptian burial site in the Valley of Kings, they led scholars to the earliest known occurrence of the square root of a negative number. The papyrus offered a specific numerical example of how to calculate the volume of a truncated square pyramid, which implied the need for i. In the first century, the mathematician-engineer Heron of Alexandria encountered I in a separate project, but fudged the arithmetic; medieval mathematicians stumbled upon the concept while grappling with the meaning of negative numbers, but dismissed their square roots as nonsense. By the time of Descartes, a theoretical use for these elusive square roots--now called "imaginary numbers"--was suspected, but efforts to solve them led to intense, bitter debates. The notorious i finally won acceptance and was put to use in complex analysis and theoretical physics in Napoleonic times. Addressing readers with both a general and scholarly interest in mathematics, Nahin weaves into this narrative entertaining historical facts and mathematical discussions, including the application of complex numbers and functions to important problems, such as Kepler's laws of planetary motion and ac electrical circuits. This book can be read as an engaging history, almost a biography, of one of the most evasive and pervasive "numbers" in all of mathematics. Some images inside the book are unavailable due to digital copyright restrictions.
Category: Mathematics

Superman Batman Generations 2

Author : John Byrne
ISBN : 1840237112
Genre : Batman (Fictitious character)
File Size : 43.13 MB
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From author and artist John Byrne comes another perspective on the development of both Superman and Batman that begins in 1942 and progresses right through to 2019.
Category: Batman (Fictitious character)

Superman Batman

Author : John Byrne
ISBN : 1563899906
Genre : Batman (Fictitious character)
File Size : 80.27 MB
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Category: Batman (Fictitious character)

Back Issue 111

Author : Michael Eury
ISBN :
Genre : Comics & Graphic Novels
File Size : 81.43 MB
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“Alternate Realities!” Cover-featuring the 20th anniversary of ALEX ROSS and JIM KRUEGER’s Marvel Earth X! Plus: What If?, Bronze Age DC Imaginary Stories, Elseworlds, Marvel 2099, and PETER DAVID and GEORGE PÉREZ’s senses-shattering Hulk: Future Imperfect. Featuring TOM DeFALCO, CHUCK DIXON, PETER B. GILLIS, PAT MILLS, ROY THOMAS, and many more! Featuring an Earth X cover by ALEX ROSS.
Category: Comics & Graphic Novels

Captain No Beard

Author : Carole P. Roman
ISBN : 1947188038
Genre : Juvenile Fiction
File Size : 45.77 MB
Format : PDF
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Captain No Beard and his pirate ship The Flying Dragon set sail for a voyage of the imagination with his fearless crew of four. Normally a young boy named Alexander, his cousin Hallie, and three stuffed animals, once they board his bed their world is transformed into a magical vessel, sailing the seven seas on dangerous and exciting adventures!
Category: Juvenile Fiction

A History Of Abstract Algebra

Author : Israel Kleiner
ISBN : 9780817646851
Genre : Mathematics
File Size : 54.71 MB
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This book does nothing less than provide an account of the intellectual lineage of abstract algebra. The development of abstract algebra was propelled by the need for new tools to address certain classical problems that appeared insoluble by classical means. A major theme of the book is to show how abstract algebra has arisen in attempting to solve some of these classical problems, providing a context from which the reader may gain a deeper appreciation of the mathematics involved. Mathematics instructors, algebraists, and historians of science will find the work a valuable reference.
Category: Mathematics

Dr Euler S Fabulous Formula

Author : Paul J. Nahin
ISBN : 9780691175911
Genre : Mathematics
File Size : 77.65 MB
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In the mid-eighteenth century, Swiss-born mathematician Leonhard Euler developed a formula so innovative and complex that it continues to inspire research, discussion, and even the occasional limerick. Dr. Euler's Fabulous Formula shares the fascinating story of this groundbreaking formula—long regarded as the gold standard for mathematical beauty—and shows why it still lies at the heart of complex number theory. In some ways a sequel to Nahin's An Imaginary Tale, this book examines the many applications of complex numbers alongside intriguing stories from the history of mathematics. Dr. Euler's Fabulous Formula is accessible to any reader familiar with calculus and differential equations, and promises to inspire mathematicians for years to come.
Category: Mathematics

The Physics Of Superheroes Spectacular Second Edition

Author : James Kakalios
ISBN : 9781101152362
Genre : Social Science
File Size : 34.95 MB
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A complete update to the hit book on the real physics at work in comic books, featuring more heroes, more villains, and more science Since 2001, James Kakalios has taught "Everything I Needed to Know About Physics I Learned from Reading Comic Books," a hugely popular university course that generated coast-to-coast media attention for its unique method of explaining complex physics concepts through comics. With The Physics of Superheroes, named one of the best science books of 2005 by Discover, he introduced his colorful approach to an even wider audience. Now Kakalios presents a totally updated, expanded edition that features even more superheroes and findings from the cutting edge of science. With three new chapters and completely revised throughout with a splashy, redesigned package, the book that explains why Spider-Man's webbing failed his girlfriend, the probable cause of Krypton's explosion, and the Newtonian physics at work in Gotham City is electrifying from cover to cover.
Category: Social Science

Fairytales A World Between The Imaginary

Author : Carmela Bernadetta Scala
ISBN : 9781443874953
Genre : Social Science
File Size : 30.64 MB
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This book investigates Basile’s contribution to the establishment of fairytales as a literary genre; the focus is on his masterpiece Lo cunto de li Cunti. The volume examines Basile’s work’s debt to tradition and its influence on posterity, while also studying the author’s unique use of metaphors in the rich Neapolitan dialect. As this study reveals, metaphors in Lo cunto de li cunti are not used simply as a mean of embellishment; rather they are employed as a way to inform the reader of the rich folkloric tradition of Naples during the baroque times, as well as of Basile’s discontent with the socio-political situation of his times. The use of metaphors is so pervasive that one could argue that the book is itself a metaphor through which Basile conveys his ideals and his utopia of a liberated Naples and a more just society; as well as the importance of the Neapolitan dialect and its linguistic registers. Furthermore, the book also proposes a new interpretation of the female characters of the tales and it instigates a discussion on gender roles in both modern and past societies.
Category: Social Science