And should you drop it into a tubful of cloudy, child-colored water, not to worry — it floats.

而且，如果不慎将香皂落入澡盆，里盛满了孩子澡的浑，你也不用担找不到——它会自动浮上。

Because of water's latent heat capacity, a tubful of water placed in a greenhouse on a night of freezing cold will act as a reserve supply of heat.

为的这种潜热容量，在滴成冰的夜晚置于温室中的一管可起到保温热源的作用。