Got it. Actually I heard that before, just couldn't recall.
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送交者: 蓝隼 于 2007-06-13, 11:13:06:
回答: use a beam of laser pointing at a satellite A which is 300,000 km from 由 steven 于 2007-06-13, 02:13:35:
Well, obiviously this is not we'd like to call as FTL travel, although to some sense it dose faster than light.
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