John Bird (astronomer)
(1709-1776)
British mathematical instrument maker
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John Bird (1709–1776) was a British mathematical instrument maker. He was born at Bishop Auckland. He came to London in 1740 where he worked for Jonathan Sisson and George Graham. By 1745 he had his own business in the Strand. Bird was commissioned to make a brass quadrant 8 feet across for the Royal Observatory at Greenwich, where it was mounted on 16 February 1750, and where it is still preserved. Soon after, duplicates were ordered for France, Spain and Russia.
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1709
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| Died |
1776 (aged 66)
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