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    題名: Until 2100 there is a Plenty of Hope at the Bottom of Society and Out There in the Cosmos
    作者: Motti, Victor Vahidi
    日期: 2016-03
    上傳時間: 2017-01-16 14:25:33 (UTC+8)
    出版者: 淡江大學未來學研究所
    摘要: The universe of matter-energy unlike its apparent complexity could be extraordinary simple. For example, if you would like to know how much matter-energy can be squeezed into a volume of space as in a star without it shrinking under its own gravitational pull and turning into a blackhole you can solve Einstein’s field equations of curved spacetime to arrive at a simple equation that has been named after the physicist Hans Adolph Buchdahl who discovered it. The maximum mass-energy allowable inside a sphere to ensure a static Star is obtained from Buchdahl’s Theorem; that is providing a theoretical upper limit:

    M(max)=4/9*R/G*c^2
    關聯: Journal of Futures Studies 20(3), pp.117-122
    DOI: 10.6531/JFS.2016.20(3).E117
    顯示於類別:[未來研究叢刊] 第20卷第3期

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