Prime Numbers: The Most Mysterious Figures in Math

EBook Description: A fascinating journey into the mind-bending world of prime numbers Cicadas of the genus Magicicada appear once every 7, 13, or 17 years. Is it just a coincidence that these are all prime numbers? How do twin primes differ from cousin primes, and what on earth (or in the mind of a mathematician) could be sexy about prime numbers? What did Albert Wilansky find so fascinating about his brother-in-law's phone number? Mathematicians have been asking questions about prime numbers for more than twenty-five centuries, and every answer seems to generate a new rash of questions. In Prime Numbers: The Most Mysterious Figures in Math, you'll meet the world's most gifted mathematicians, from Pythagoras and Euclid to Fermat, Gauss, and Erd?o?s, and you'll discover a host of unique insights and inventive conjectures that have both enlarged our understanding and deepened the mystique of prime numbers. This comprehensive, A-to-Z guide covers everything you ever wanted to know--and much more that you never suspected--about prime numbers, including: * The unproven Riemann hypothesis and the power of the zeta function * The "Primes is in P" algorithm * The sieve of Eratosthenes of Cyrene * Fermat and Fibonacci numbers * The Great Internet Mersenne Prime Search * And much, much more

Are we rising again? No. On the contrary. Are we descending? Worse than that, captain! we are falling! For Heaven's sake heave out the ballast! There! the last sack is empty! Does the balloon rise? No! I hear a noise like the dashing of waves. The sea is below the car! It cannot be more than 500 feet from us! Overboard with every weight! . . . everything! Such were the loud and startling words which resounded through the air, above the vast watery desert of the Pacific, about four o'clock in the evening of the 23rd of March, 1865. Few can possibly have forgotten the terrible storm from the northeast, in the middle of the equinox of that year. The tempest raged without intermission from the 18th to the 26th of March. Its ravages were terrible in America, Europe, and Asia, cov

100 Strangest Mysteries (Repost) Book

Publisher: Metro Books | ISBN: 0760791929 | edition 2007 | PDF | 213 pages | 24,7 mb
Were the Amityville hauntings cynical media manipulation? Is levitation possible? Has Earth been visited by UFOs from other realms? All these questions, and more, are considered in 100 Strangest Mysteries. Paranormal investigator Matt Lamy documents in detail the numerous phenomena and events which can be termed 'mysterious' and cannot be dismissed as mere hysteria or wild imaginings.

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