Record

RefNoAP/26/5
LevelItem
TitleUnpublished letter, 'Concerning the invention of sempiternal motion upon Earth' from William Herschel de Griesbach to Sir John Lubbock
Creatorde Griesbach; William Herschel (fl 1843)
Date30 January 1843
DescriptionDe Griesbach explains that in the summer of 1820 he first began to entertain the idea that the invention of sempiternal motion upon Earth was possible. He describes sempiternal motion as 'having a beginning, but no end', therefore preferring this term to 'perpetual motion'. He writes on the importance of the centripetal and centrifugal force on the Earth.

Subject: Astronomy

Written by de Griesbach in Vegesack, Bremen [Germany].
Extent9p
FormatManuscript
PhysicalDescriptionInk on paper
Digital imagesView item on Science in the Making
AccessStatusOpen
Fellows associated with this archive
CodePersonNameDates
NA7010Lubbock; Sir; John William (1803 - 1865)1803 - 1865
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