Search results
Results from the WOW.Com Content Network
1845: Isaac Charles Johnson invents modern Portland cement. 1846: Henri-Joseph Maus invents the tunnel boring machine. 1847: Ascanio Sobrero invents Nitroglycerin, the first explosive made that was stronger than black powder. 1848: Jonathan J. Couch invents the pneumatic drill. 1848: Linus Yale Sr. invents the first modern pin tumbler lock.
Heron (c. 10–70), Roman Egypt – usually credited with invention of the aeolipile, although it may have been described a century earlier; John Herschel (1792–1871), UK – photographic fixer (hypo), actinometer; Harry Houdini (1874–1926) U.S. – flight time illusion; Heinrich Hertz (1857–1894), Germany – radio telegraphy ...
However, modern mathematicians generally believe that his axioms were highly incomplete, and that his definitions were not really used in his proofs. 300 BC: Finite geometric progressions are studied by Euclid in Ptolemaic Egypt. [43] 300 BC: Euclid proves the infinitude of primes. [44] 300 BC: Euclid proves the Fundamental Theorem of Arithmetic.
It contains a rhymed description of "base-ball" and a woodcut that shows a field set-up somewhat similar to the modern game—though in a triangular rather than diamond configuration, and with posts instead of ground-level bases. [16] 1753. Invention of hollow-pipe drainage is credited to Sir Hugh Dalrymple who died in 1753. [17] 1761
You can thank risk-taking inventors for their numerous contributions to modern living. But behind many of these inventions were fantastic flops — things that either worked and didn't make ...
An image from John Dalton's A New System of Chemical Philosophy, the first modern explanation of atomic theory.. This timeline of chemistry lists important works, discoveries, ideas, inventions, and experiments that significantly changed humanity's understanding of the modern science known as chemistry, defined as the scientific study of the composition of matter and of its interactions.
The later Atanasoff–Berry Computer ("ABC"), designed by John Vincent Atanasoff and Clifford Berry, was the first fully electronic digital computing device; [79] while not programmable, it pioneered important elements of modern computing, including binary arithmetic and electronic switching elements, [80] [81] though its special-purpose nature ...
Many Native American contributions to our modern world often go unrecognized, according to Gaetana DeGennaro, a museum specialist at the Smithsonian National Museum of the American Indian.