Build an airship capable of carrying four or more people into flight., and do it with an engine that produces less pollution than a standard internal combustion engine.
External combustion is more efficient than internal combustion. Your challenge is trivial, assuming someone has the money to throw around.
(Not that I don't almost entirely agree with you, mind. But the math's against you on the challenge part.)
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asenathwaite
(no subject)
Date: 2008-06-17 04:28 pm (UTC)External combustion is more efficient than internal combustion. Your challenge is trivial, assuming someone has the money to throw around.
(Not that I don't almost entirely agree with you, mind. But the math's against you on the challenge part.)