科学史评话_地球的刻度(13)大结局 episode artwork

EPISODE · Nov 2, 2014 · 29 MIN

科学史评话_地球的刻度(13)大结局

from 科学史评话系列之地球的刻度

1962年9月,肯尼迪发表了著名的登月演说,“我们决定在未来的十年内做登月等等事情,不是因为它们很容易,而是因为它们很难。”(...We choose to go to the moon in this decade and do the other things, not because they are easy, but because they are hard...)一时间,NASA变得非常飘飘然,啥事难做做啥事,斯坦福的太空陀螺实验来的正是时候。 无独有偶,另一个美国政府部门,空军,也有类似的口号,“困难的事,我们马上就做!不可能的事,给点时间照样做!”(The difficult we do immediately. The impossible takes a little longer.) NASA和空军联合出资,于1963年开始出资支持太空陀螺实验。 NASA和空军愿意支持斯坦福的真正原因,还是在太空陀螺实验本身。他们清楚地认识到,在这个极其困难的实验背后,是一项项可以被更多民用、军用项目利用的尖端技术。例如,在太空长期保持1.8K超低温的技术,完全可以应用于今后的远红外卫星、远红外望远镜,比如后来的红外线天文卫星(IRAS),史匹哲太空望远镜(Spitzer Space Telescope),等等。又例如,超高精度的定向技术,让哈勃太空望远镜(Hubble Space Telescope)能够拍摄到史无前例深空天体。至于超高精度的陀螺、持续变轨等等能够给空军带来什么,就毋须多言了。

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