The website followed their progress, provided tips and encouragement, and offered bulletin boards where users could compare notes and motivate each other.

VOA: standard.2010.07.30

So now let's go around the cycle and just compare notes on what happens to the thermodynamic quantities as we do that.

现在让我们推导一下这个循环,比较一下这个过程中,热力学性质的变化。

麻省理工公开课 - 热力学与动力学课程节选