Question: Fritz Johann Hansgirg worked with an American industrialist who established the Kaiser Shipyards, which build Liberty ships during what war?
Sentence (from "Fritz Johann Hansgirg"): Fritz Johann Hansgirg (18911949) was an Austrian electrochemist and metallurgist who in 1928 invented the carbothermic magnesium reduction process (magnesium, like calcium, can be used to reduce uranium oxide to pure uranium metal for use in nuclear weapons), similar to the Pidgeon process.
Relevant evidence: No