So the work that you're doing to expand, to go through this experiment, ends up cooling the gas.

因此在膨胀气体的过程中,气体降温。

麻省理工公开课 - 热力学与动力学课程节选

- And we could never do this-- and one could never do this experiment today but let me go through it with you and you'll apologize for its--some of its qualities.

我们不能再-,这种实验，如今再不能做了,我给你们从头至尾讲一下,因为实验中性别歧视的原因，我再次道歉。

耶鲁公开课 - 心理学导论课程节选