In the center of the courtyard, there is a huge glass and steel pyramid surrounded by water fountains and smaller pyramids.

VOA: special.2010.06.23

Energy can flow across the glass but I put a lid on top, and so the water can't get out.

能量可以穿过杯壁流动,但是我在顶上加了盖子，所以水不能跑出来。

麻省理工公开课 - 热力学与动力学课程节选

Energy can flow across the glass but I put a lid on top, and so the water can't get out.

能量可以穿过杯壁流动,但是我在顶上加了盖子，所以水不能跑出来。

麻省理工公开课 - 热力学与动力学课程节选