One of his early programs was a history show where he questioned actors playing people like Aristotle and Joan of Arc.

VOA: special.2009.08.16

This is titanium sponge that comes out of the bottom of this reactor, and it subsequently re-melted in a vacuum arc furnace.

海绵状的钛,从反应器的底部出来，随后在真空炉中重新熔炼。

麻省理工公开课 - 固态化学导论课程节选