Record

RefNoAP/22/6
Previous numbersAP.22.6
LevelItem
TitleUnpublished letter, 'An allegorical epitome of the road to longitude' from John Crockford to the Royal Society
Date4 March 1837
DescriptionCrockford, a schoolmaster from Taunton [England], shares his research on the subject of perpetual motion, including notes on the search for 'a spring of perpetual energy of sufficient power for all the various purposes of machinery'. He uses the allegory of a mountain to describe the mechanisms of perpetual motion.

Subject: Engineering
Extent27p
FormatManuscript
PhysicalDescriptionInk on paper
Digital imagesView item on Science in the Making
AccessStatusOpen
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