Entropy is a physical concept often casually described as disorder, butit differs significantly from the conversational use of the word.

熵是一个物理概念，通常被粗略描述为无序状态，但它其实与我们常说的概念有很大区别。

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This, in a nutshell, is the second law of thermodynamics, which states that the entropy (a measure of the disorder) in a closed physical system never decreases.

简单来说，热力学第二定律表明在一个封闭的系统中，熵是不会降低的。

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This simple and strict method can be adopted in the courses of Genaral physics aud Engineering physics so as to make students acquire a better understanding of the physical significance of entropy.

这种既简单又严谨的方法，用于工科物理和普通物理课程中，能够使学生更好地理解熵的物理意义。

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But the idea of "causal entropy" goes further, suggesting that a given physical system not only maximises the entropy within its current conditions, but that it reaches a state that will allow it more entropy - in a real sense, more options - in the future.

BBC: Entropy law linked to intelligence, say researchers