Quote: "hydrogen, which is used in airships" -- as though all airships use hydrogen.
Really? The Goodyear blimp and the Zeppelin NT use hydrogen? I think not. Neither did the U.S. Navy airships, such as the Akron. The pre-WWII German Zeppelins did use hydrogen; but only because we (the U.S.) refused to sell them helium.
Careless attention to such common facts makes one wonder how much of the rest of the article is fanciful, too.
