送交者: wasguru 于 2005-1-12, 17:08:27:

回答: This works only when they are located at the same longitude 由 HunHunSheng 于 2005-1-12, 16:52:23:

What matters is that the shadows were measured at noon. It doesn't matter whether these two "noons" are simultaneous.

• I don't think so. It must be Simultaneously in terms of absolute time - HunHunSheng (296 bytes) 2005-1-12, 17:12:57
  • 混混脑子糊涂了,你的同时也是可以算的,不过就不需要夏至这个概念了. - wangle (43 bytes) 2005-1-12, 17:22:11
    • That is my original question: how to you make sure 同时测定 - HunHunSheng (157 bytes) 2005-1-12, 17:26:33
      • 测量最短距离,就保证它是夏至中午,当然还要测出两地连线和这时影子的角度. - wangle (0 bytes) 2005-1-12, 17:32:21
        • Noon at one city might be ahead of or lag behind the noon at the other city - HunHunSheng (0 bytes) 2005-1-12, 17:34:21
          • It is still possilbe to get simultaneity if you really want it - wasguru (105 bytes) 2005-1-12, 21:29:41

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