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A load of hot air

PE

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The real inventor of "jet propulsion" was the first person to blow up a party balloon and then, accidentally, to let it go

Still the Frank Whittle story rolls on. Surely the real inventor of "Jet Propulsion" was the first person to blow up a party balloon and then, accidentally, to let it go. It would then have have flown around the room driven by jet propulsion.

John Rogers, Camberley

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