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1842: John Bennet Lawes invents superphosphate, the first man-made fertilizer. 1844: Friedrich Gottlob Keller and, independently, Charles Fenerty come up with the wood pulp method of paper production. 1844: Francis Rynd invents the hypodermic needle. 1845: Isaac Charles Johnson invents modern Portland cement.
1900 Fly swatter. A fly swatter is a hand-held device for swatting and killing flies and other insects. The first modern fly-destruction device was invented in 1900 by Robert R. Montgomery, an entrepreneur based in Decatur, Illinois. [75] On January 9, 1900, Montgomery was issued U.S. patent #640,790 for the "Fly-Killer". [76] 1900 Thumbtack
In optics, a diffraction grating is an optical component with a regular pattern, which diffracts light into several beams. The first man-made diffraction grating was invented around 1785 in Philadelphia by David Rittenhouse who strung 50 hairs between two finely threaded screws with an approximate spacing of about 100 lines per inch. [28]
From the first Apple computer to the COVID-19 vaccine, here are the most revolutionary inventions that were born in the U.S.A. in the past half-century.
The following articles cover the timeline of United States inventions: Timeline of United States inventions (before 1890), before the turn of the century; Timeline of United States inventions (1890–1945), before World War II; Timeline of United States inventions (1946–1991), during the Cold War
American researchers made fundamental advances in telecommunications and information technology. For example, AT&T's Bell Laboratories spearheaded the American technological revolution with a series of inventions including the light emitting diode , the transistor, the C programming language, and the UNIX computer operating system.
1800: Italian physicist Alessandro Volta invented the battery. 1804: Thomas Young: Wave theory of light, Vision and color theory: 1808: Atomic theory by John Dalton: 1816: English inventor Francis Ronalds built the first working electric telegraph. 1820: Danish physicist Hans Christian Ørsted accidentally discovered that an electric field ...
1858: Invention of the phonautograph, the first true device for recording sound. 1863: First section of the London Underground opens. 1866: Successful transatlantic telegraph cable follows an earlier attempt in 1858. 1867: Alfred Nobel invents dynamite. 1869: First transcontinental railroad completed in United States on 10 May.