Joule actually did this experiment, and he observed that for the gas expansions that he could do, that the temperature did not increase measurably.

事实上焦耳的确做了这个实验，他做到了,他能达到的最好实验要求，发现在可测量范围内没有观察到温度上升。

麻省理工公开课 - 热力学与动力学课程节选

You have these broad things, like if you just got the population to eat less junk food and more fruits and vegetables, well you might be 80% of the goal line or 90% of the goal line, so some broad rules pretty much apply.

如果能遵守这些宽泛的规则,比如,如果能让人们少吃垃圾食品,多吃蔬菜和水果,那么将可达到目标的百分之八九十,因此某些宽泛的规则是广泛适用的

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选