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Victor Leaton Ochoa (1850 Chihuahua, Mexico – 1945 Sinaloa, Mexico) was a Mexican American revolutionary, journalist, union leader, miner, prisoner and inventor. He is best known for his invention of the Ochoaplane, the electric brake, an adjustable wrench, a pen and pencil clip and a windmill.
Frederick McKinley Jones (May 17, 1893 – February 21, 1961) was an American inventor, entrepreneur, engineer, winner of the National Medal of Technology, and an inductee of the National Inventors Hall of Fame. [1]
The 100 known most prolific inventors based on worldwide utility patents are shown in the following table. While in many cases this is the number of utility patents granted by the United States Patent and Trademark Office, it may include utility patents granted by other countries, as noted by the source references for an inventor.
Gustav de Laval (1845–1913), Sweden – invented the milk separator and the milking machine; 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
Roberval Balance by Gilles de Roberval in 1669. [66] Réaumur scale by René Antoine Ferchault de Réaumur in 1730. [67] Pitot tube by Henri Pitot in 1732 [68] and modified to its modern form in the mid-19th century by Henry Darcy. [69] Comparison of De Moivre's approximation with the factorial; the formula is now known as Stirling's approximation.
270 kya: Age of Y-DNA haplogroup A00 ("Y-chromosomal Adam"). [4] 250 kya: First appearance of Homo neanderthalensis (Saccopastore skulls). [5] 230 kya: Latest proposed date for the Terra Amata site, home of the first confirmed purpose-built structure and probably made by Homo heidelbergensis. [6]
The National Inventors Hall of Fame (NIHF) is an American not-for-profit organization, founded in 1973, which recognizes individual engineers and inventors who hold a U.S. patent of significant technology.
The Four Great Inventions are inventions from ancient China that are celebrated in Chinese culture for their historical significance and as symbols of ancient China's advanced science and technology.