It seems that cloud is actually a very good concept

送交者: 008 于 2012-07-17, 16:43:50:

回答: 用电子云人们又会以为是电子在那团“云”里转来转去。由 whoami 于 2012-07-17, 15:31:35:

we can say that everything is a little cloudy down to length scale of angstrom. For large stuff like the sun, the earth, or yourself, it is nothing to be concerned. But for things smaller than an angstrom, they cloud is all, there are no "solid" identity any more.

所有跟贴:

电子云光子雨，云云雨雨生量子。 (无内容) - whoami (0 bytes) 2012-07-17, 17:54:27 (673994)
- 数番云雨，几回深宵！却是影迹难测，休言偏将原子繞， - steven (32 bytes) 2012-07-17, 18:49:10 (673997)

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