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Hans Christian Orsted

aka: Ørsted
borndied
1777, Aug 141851, Mar 9
a Danish physicist and chemist who discovered that electric currents create magnetic fields, which was the first connection found between electricity and magnetism. He is still known today for Oersted's Law. He shaped post-Kantian philosophy and advances in science throughout the late 19th century. In 1825, Ørsted made a significant contribution to chemistr...
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Elisha Otis

borndied
1811, Aug 31861, Apr 8
an American industrialist, founder of the Otis Elevator Company, and inventor of a safety device that prevents elevators from falling if the hoisting cable fails. He and his sons, who were also tinkerers, designed their own "safety elevator" and tested it successfully. He thought so little of it he neither patented it nor requested a bonus from his superiors...
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William Otis

bornactivedied
1813, Sep 201835-18391839, Nov 13
an American inventor of the steam shovel. Otis received a patent for his creation on February 24, 1839. At an early age, William was interested in earthworks and mechanics. At the age of 22, he had shown an uncommon mechanical ingenuity and created the first steam powered mechanical excavator. Using materials obtained in vicinity of Canton, Massachusetts, Wi...
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William Oughtred

borndied
1575, MAr 51660, Jun 30
an English mathematician and Anglican minister. After John Napier invented logarithms and Edmund Gunter created the logarithmic scales (lines, or rules) upon which slide rules are based, it was Oughtred who first used two such scales sliding by one another to perform direct multiplication and division; and he is credited as the inventor of the slide rule in ...
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