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1701-1744 - Andres Celsius devised Celsius thermomether, he also confirmed that Earth is ellipsoid with flat poles. Catalogued 300 stars, discovered magnetic basis for auroras 1733 - Stephen Hales measures blood pressure 1742 - Andres Celsius develop temperature scale 1745 - E.G. Von Kleist invent leyden jar, the first elecrtical capacitor 1752 - lightening rod - Benjamin Franklin 1755 - first English dictionary - SAmuel Johson 1757 - John Cambell invents sextant (measuring tools) 1758 - chromatic lens - Dolland 1761 - navigational clock/ marine chronometer - John Harrison 1764 - Spinning Jenny - James Hargreaves 1767 - Joseph Pristley experimented with putting gasses into liquids making first carbonated water 1768 - Spinning frame - Richard Arkwright 1769 - James Watt developed steam engine 1770 - Torben Bergman invented machine for making carbonated water from chalk and sulfuric acid 1744 - George Louis Lesage patents electric telegraph