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宇宙间的硬通货 #89

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emptymalei opened this issue Oct 9, 2015 · 1 comment

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emptymalei commented Oct 9, 2015

看到一个挺有趣的问题：
http://www.zhihu.com/question/26528941

说负熵（好像是个很奇怪的措辞，显然也没什么负的熵，通常是用来指生物学家所说的生物体系的吧）的我没有明白除了拿来做能源还有什么别的用，所以就是能源比较重要吧。

syrte commented Oct 9, 2015

对啊，负熵有点奇怪。生物吃东西或者工业生产，体系内熵是减少了，但是更大范围还是增加熵的嘛，并没有负的熵。
说到底还是能源和材料呗。
说起这个，角动量能买卖吗？有谁想买吗？

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