Accueil > 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).
- Partie du discours : noun
- Secteur d’activité/Domaine : Langue
- Catégorie : Encyclopedias
- Organization: Project Gutenberg
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Créateur
- JohannesDD
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(Sydney, Australia)