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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
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; Timeline of United States inventions (after 1991), after the dissolution of the Soviet Union
American cabinetmaker Allen B. Wilson of Willet, New York invented the vibrating shuttle design in 1850. The owners of the 1848 Bradshaw patent claimed infringement by Wilson. However, it was without justication. In order to avoid a lawsuit, Wilson relinquished his interest in U.S. Patent #7,776 that was issued to him on November 12, 1850.
The cotton gin, invented by Eli Whitney, revolutionized slave-based agriculture in the Southern United States.. The technological and industrial history of the United States describes the emergence of the United States as one of the most technologically advanced nations in the world in the 19th and 20th centuries.
American engineer Peter Cooper Hewitt invented the Fluorescent lamp: 1904: English engineer John Ambrose Fleming invented the diode: 1906: American inventor Lee de Forest invented the triode: 1908: Scottish engineer Alan Archibald Campbell-Swinton, laid out the principles of Television. 1909: Mica capacitor was invented by William Dubilier: 1911
The Lower Paleolithic period lasted over 3 million years, during which there many human-like species evolved including toward the end of this period, Homo sapiens.The original divergence between humans and chimpanzees occurred 13 (), however interbreeding continued until as recently as 4 Ma, with the first species clearly belonging to the human (and not chimpanzee) lineage being ...
c. 1900 United States: The Standard Adding Machine Company released the first 10-key adding machine in about 1900. The inventor, William Hopkins, filed his first patent on October 4, 1892. The 10 keys were set on a single row. 1902 United States: First model of Dalton adding machine is built. [49]
The American effort to bring home German rocket technology in Operation Paperclip, and the bringing of German rocket scientist Wernher von Braun (who would later sit at the head of a NASA center) stand out in particular. Expendable rockets provided the means for launching artificial satellites, as well as crewed spacecraft.