FAMOUS INVENTORS ~ 1600 - 1699
1. Inventors 1600 - 1699 (birth dates)Otto von Guericke
(1602-1686)
German
vacuum pump
James Gregory
(1638-1675)
Scottish
reflecting telescope
Isaac Newton
(1642-1727)
British
reflecting telescope (which reduces chromatic aberration)
Bartolomeo Cristofori
(1655-1731)
Italian
piano
Christopher Polhem
(1661-1751)
Swedish
the modern padlock
John Hadley
(1682-1744)
British
the sextant
John Harrison
(1693-1776)
British
marine chronometer
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