High radiation levels

David Jones

Nature, 1998, vol. 392, issue 6675, 443-443

Abstract: First nuclear submarines, now a nuclear helicopter — but powered by slightly different principles. Daedalus has designed a free-flying helicopter rotor with blades that have a radioactive coating on one side. Nuclear decay will keep these surfaces warm, causing impinging air molecules to rebound with added momentum and spin the rotor. Such a helicopter would fly indefinitely at a safe height and, from there, it could even be used to repair the ozone layer, because nuclear radiation can convert oxygen to ozone much more efficiently than solar ultraviolet light.

Date: 1998
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DOI: 10.1038/33028

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