They are in a dark room. But a General Electric light on a nearby table coverds them with a soft warm glow.

VOA: special.2010.09.20

Of course, it is evaporating like crazy because it is so warm in the room.

当然，它会剧烈的蒸发,因为室温温度很高。

麻省理工公开课 - 固态化学导论课程节选