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Beyond Star Trek: physics from alien invasions to the end of - download pdf or read online

By Lawrence M. Krauss

ISBN-10: 0060977574

ISBN-13: 9780060977573

ISBN-10: 046500637X

ISBN-13: 9780465006373

Lawrence Krauss takes a provocative examine how the legislation of physics relate to notions from our pop culture - not just big name Trek, yet different movies, exhibits, and well known lore - from Independence Day to megastar Wars to The X-Files. subscribe to him on a enjoyable, mind-bending trip in the course of the nature of alien visitation, interstellar commute - together with the very most recent on warp-drive platforms - time, realization, ESP, the likelihood of alternative existence within the universe, and quantum fact.

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To deliver just a single atom to the nearest star would thus require more fuel than is available from all the matter known in the universe! I think even Congress would realize that this is not the way to go. Conventional fuel is obviously the straw man in this conundrum, though. No one has seriously suggested trying to reach the stars with rockets of the type we use to orbit the Earth. But there is a lot of creative thinking going on in this business, so a number of people are claiming that at least a manned Mars mission in the next decade or two is a reasonable goal.

I suppose there is some comfort in being able to spend the 1,000 years waiting in comfortable surroundings instead of sitting inside a cramped spacecraft, but the end result is the same. However you slice it, you can never get from "here" to "there" in less than 1,000 years from the time you first 44 THEY'LL BE COMIN' ROUND THE MOUNTAIN... start trying. As wonderful as the possibility seems, in the end warp drive is a cosmic letdown. Take that, Fox Mulder! Energy is energy, and even a million years from now, when we will know a lot more physics than we do today, the energy requirements to transport us throughout the galaxy will still be the same, and the energy required to manipulate gravity to bend it to our will seems to be greater than all the energy in the galaxy put together.

Now for the new results: In the past year, a number of researchers have subjected warp-drive theory to the same kind of There, and Back Again? 43 scrutiny previously applied to the idea that wormholes might be used as shortcuts through space. Their findings have been no more encouraging. The theoretical physicist Larry Ford and his colleagues at Tufts University have shown that in order not to violate known laws associated with energy conservation, space must expand and contract (at any one time) only in the thin surface layer of a bubble surrounding the spacecraft.

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Beyond Star Trek: physics from alien invasions to the end of time by Lawrence M. Krauss


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