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1729 in science : ウィキペディア英語版 | 1729 in science
The year 1729 in science and technology involved some significant events. ==Astronomy==
* January 9 & 16 – James Bradley, in a letter written to Edmond Halley and read before the Royal Society, describes his discovery of aberration of starlight.〔Date clarified in: 〕 * August 1 – Fr. Nicolas Sarabat, a professor of mathematics at Marseilles, discovers the Comet of 1729, possibly the largest comet, with the highest apparent magnitude, on record. * English optician Chester Moor Hall (1703–1771) develops an achromatic lens (or achromat) commonly used as the objective of small refractor telescopes.
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