Home > Term: John Hadley
John Hadley
Natural philosopher; invented a 5 ft. reflecting telescope, and a quadrant which bears his name, though the honor of the invention has been assigned to others, Newton included (1682-1744).
- Part of Speech: noun
- Industry/Domain: Language
- Category: Encyclopedias
- Organization: Project Gutenberg
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Creator
- JohannesDD
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(V.I.P) 14638 points - 100% positive feedback
(Sydney, Australia)
