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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
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
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 ...
Semyon Lavochkin (1900–1960), Russia – La-series aircraft, first operational surface-to-air missile S-25 Berkut; John Bennet Lawes (1814–1900), UK – superphosphate or chemical fertilizer; Ernest Orlando Lawrence (1901–1958), U.S. – Cyclotron; Nikolai Lebedenko, Russia – Tsar Tank, largest armored vehicle in history
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.
A diner is a restaurant characterized by a wide range of foods, a casual and often nostalgic atmosphere, a counter, and late operating hours. The precursor to the fast food eatery began in 1872 when Walter Scott, a myopic pressman for the Providence Journal , became serious about selling food and refreshments in the streets.
An AI-powered toilet seat has been named by Time Magazine as one of the top 200 inventions of 2024. It optically scans a user’s stool and urine, to detect any concerning changes that might ...
In the mid to late 1890s Guglielmo Marconi developed a radio wave based wireless telegraphy system [49] (see invention of radio). The atomic theory of matter had been proposed again in the early 19th century by the chemist John Dalton and became one of the hypotheses of the kinetic-molecular theory of gases developed by Clausius and James Clerk ...