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26th Jun 2002, 10:39

#5 (permalink)

paco

Join Date: Nov 2000

Location: White Waltham, Prestwick & Calgary

Age: 72

Posts: 4,162

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Received 29 Likes on 14 Posts

Sorry, I don't see how it can be. I haven't seen the illustration, but a jet works by accelerating a thin hot stream of air backwards, so it comes from somewhere and goes somewhere. This does not happen with the balloon which is self contained.

Phil

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