[新聞] 未來人類如何太空旅行? 霍金:乘坐光束消失
隨著地球生態惡化,科學家相信,人類未來勢必會透過太空之旅,移居地球以外的行星,
重新建立新文明。不過,太空之旅要如何實現呢?全球知名物理及天文學大師霍金(
Stephen Hawking)近日又吐驚人之語,指未來人類可乘坐「光束」抵達地外行星。
根據《Live Science》報導,霍金日前赴挪威的斯坦梅斯大會(Starmus festival)演講
時,強調人類僅剩200-500年找尋太空新家,否則會面臨滅絕危機,並提到人類目前以燃
燒化學燃料動力抵達太空的速度太慢,未來應會突破限制,更快速地飛向遙遠星球。
霍金表示,「光」是最佳燃料,強大光束可作為推進太空船動力。核聚變可為太空船提供
1%質能,將飛行速度提升到光速的10分之1。未來太空船速度可達到接近光速,實現人類
的太空夢想。
http://www.chinatimes.com/realtimenews/20170622002815-260412
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