Mention163869

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so:text I know no property of a gyroscope that conflicts... with the conservation of energy. ... is in the same state today that as it was in the fifteenth century when Leonardo da Vinci denounced it so properly. ...If you really want to see perpetual motion, look into the sky on a cloudless night and marvel at the size and movement within the Universe. (en)
so:isPartOf https://en.wikiquote.org/wiki/Eric_Laithwaite
so:description Engineer Through the Looking-Glass (1980) (en)
qkg:hasContext qkg:Context80377
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