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By using pressurized water directly from the supply line, there is a faster recycle time between flushes. The flushometer is still in use today in homes and public restrooms around the world. The flushometer was invented in 1906 by American businessman and inventor William Elvis Sloan. [121] [122] 1906 Audion tube
Anna Mangin (1844–1931) – American inventor, educator, caterer and women's rights campaigner; Charles Mantoux (1877–1947), France – Mantoux test (tuberculosis) Guglielmo Marconi (1874–1937), Italy – radio telegraphy; Gheorghe Marinescu (1863–1938), Romania – first science films in the world in the neurology clinic in Bucharest ...
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
African Americans have been the victims of oppression, discrimination and persecution throughout American history, with an impact on African-American innovation according to a 2014 study by economist Lisa D. Cook, which linked violence towards African Americans and lack of legal protections over the period from 1870 to 1940 with lowered innovation. [1]
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.
American inventors, persons who created or discovered a new method, form, device or other useful means that became known as an invention. Pages in this category should be moved to subcategories where applicable.
The cowboy hat is a high-crowned, wide-brimmed hat best known as the defining piece of attire for the North American cowboy. Today it is worn by many people, and is particularly associated with ranch workers in the western and southern United States, western Canada and northern Mexico, with country-western singers, and for participants in the ...
Ford hired European immigrants, African-Americans, ex-convicts, and the disabled and paid comparatively high wages, but was quick to dismiss anyone involved in labor unions or radical political associations. [72] With growth of American automobile usage, urban and rural roads were gradually upgraded for the new traffic.