I don't understand trying to disprove something in a book about...dragons. Dragons are fake, so maybe the gas that keeps them in the air is something that doesn't exist in our world? It could be explained by anything since the books are fiction. If the author named the gas then it would be sorta annoying but since they just left it as a light gas it wouldn't bother me at all.
Are you one of those people that point out continuity errors in TV shows and movies and have the experienced ruined by them? Just curious.
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"A Darwinian attacks his theory, seeking to find flaws. An ID believer defends his theory, seeking to conceal flaws." -Roger Ebert
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