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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
3.3 Mya – 2.6 Mya: Stone tools - found in modern-day Kenya are older and only found on the archetype road. Ancient stone tools from Ethiopia were hand-crafted by Australopithecus or related people. [1] [2] [further explanation needed] 2.3 Mya: Earliest likely control of fire and cooking, by Homo habilis [3] [4] [5]
Henry Fox Talbot (1800–1877) invented the salt print and calotype photographic processes J.J. Thomson (1856–1940), mass spectrometer Jethro Tull (1674–1740), horse-drawn seed drill
1800 BC: The Middle Kingdom of Egypt develops Egyptian fraction notation. 1800 BC - 1600 BC: A numerical approximation for the square root of two, accurate to 6 decimal places, is recorded on YBC 7289 , a Babylonian clay tablet believed to belong to a student.
18th century: of the horse-drawn hoe and scarifier by Jethro Tull [2] [3] [4] 1780s: Selective breeding and artificial selection pioneered by Robert Bakewell (1725–1795). [5] 1842: Superphosphate or chemical fertilizer developed by John Bennet Lawes (1814–1900). [6] 1850s: Steam-driven ploughing engine invented by John Fowler (1826–1864). [7]
The year 1900 in science and technology involved some significant events, listed below. Aeronautics. July 2 ... c. October 3 – The Wright ...
[3] The 19th century was an era of rapidly accelerating scientific discovery and invention, with significant developments in the fields of mathematics, physics, chemistry, biology, electricity, and metallurgy that laid the groundwork for the technological advances of the 20th century. [4]
The modern-day provisions of the law applied to inventions are laid out in Title 35 of the United States Code (Ch. 950, sec. 1, 66 Stat. 792). From 1836 to 2011, the United States Patent and Trademark Office (USPTO) has granted a total of 7,861,317 patents [9] relating to several well-known inventions appearing throughout the timeline below.