Total Number of Books in Collection Library : 127

 

Page number: 5
 

God's Equation : Einstein, Relativity, and the Expanding Universe

Author: Amir D. Aczel
ISBN: 0385334850
Publisher: Delta         Place:
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Format: Paperback         # Pages: 256
Reader Rating: 4.0 (35 votes)
Release: 2000
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Summary: Who would have thought a mathematical constant would make such an engaging character? "God's Equation: Einstein, Relativity, and the Expanding Universe", mathematician Amir Aczel's tale of the search for a scientific explanation of the universe, features the cosmological constant in a role as complex as Einstein's. The great genius referred to it as his "greatest blunder," but recent events in the world of astrophysics have brought the prodigal term back into the fold as an important part of his field equation. Aczel is a powerful storyteller, and makes no secret of his admiration for Einstein; much of the book revolves around his conquest of general relativity. Integrating relativity with gravitation was no easy task (even for Einstein), but the author deftly steers the reader away from the sticky stuff and focuses attention on concepts of importance.
Aczel shows Einstein's aesthetic troubles with the cosmological constant, which preceded theoretical and experimental problems leading to its abandonment. The universe was caught in the act of expansion by Edwin Hubble, and the constant, originally invoked to maintain a steady-state universe, was unnecessary. Fortunately, though, the mathematics underlying the constant had become important tools for physicists; observations in 1997 and 1998 by Saul Perlmutter, Neta Bahcall, and others showed that the universe will continue expanding indefinitely and sent theorists back to the drawing board to revise their equations. The cosmological constant returned triumphant, and while its inventor might never have approved of it, today's scientific community gives it an honored role in "God's Equation". "--Rob Lightner"


 

Longitude: The True Story of a Lone Genius Who Solved the Greatest Scientific Problem of His Time

Author: Dava Sobel
ISBN: 0140258795
Publisher: Penguin (Non-Classics)         Place:
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Format: Paperback         # Pages: 192
Reader Rating: 4.0 (229 votes)
Release: 1996
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Summary: The thorniest scientific problem of the eighteenth century was how to determine longitude. Many thousands of lives had been lost at sea over the centuries due to the inability to determine an east-west position. This is the engrossing story of the clockmaker, John "Longitude" Harrison, who solved the problem that Newton and Galileo had failed to conquer, yet claimed only half the promised rich reward.


 

Measuring Eternity : The Search for the Beginning of Time

Author: Martin Gorst
ISBN: 0767908279
Publisher: Broadway         Place:
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Format: Hardcover         # Pages: 352
Reader Rating: 5.0 (5 votes)
Release: 2001
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Summary: The untold story of the religious figures, philosophers, astronomers, geologists, physicists, and mathematicians who, for more than four hundred years, have pursued the answer to a fundamental question at the intersection of science and religion: When did the universe begin?

The moment of the universe's conception is one of science's Holy Grails, investigated by some of the most brilliant and inquisitive minds across the ages. Few were more committed than Bishop James Ussher, who lost his sight during the fifty years it took him to compose his "Annals" of all known history, now famous only for one date: 4004 b.c. Ussher's date for the creation of the world was spectacularly inaccurate, but that didn't stop it from being so widely accepted that it was printed in early twentieth-century Bibles. As writer and documentary filmmaker Martin Gorst vividly illustrates in this captivating, character-driven narrative, theology let Ussher down just as it had thwarted Theophilus of Antioch and many before him. Geology was next to fail the test of time. In the eighteenth century, naturalist Comte de Buffon, working out the rate at which the earth was supposed to have cooled, came up with an age of 74,832 years, even though he suspected this was far too low. Biology then had a go in the hands of fossil hunter Johann Scheuchzer, who alleged to have found a specimen of a man drowned at the time of Noah's flood. Regrettably it was only the imprint of a large salamander.

And so science inched forward via Darwinism, thermodynamics, radioactivity, and, most recently, the astronomers at the controls of the Hubble space telescope, who put the beginning of time at 13.4 billion years ago (give or take a billion). Taking the reader into the laboratories and salons of scholars and scientists, visionaries and eccentrics, "Measuring Eternity" is an engagingly written account of an epic, often quixotic quest, of how individuals who dedicated their lives to solving an enduring mystery advanced our knowledge of the universe.


 

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