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The ancient Greek historian Herodotus states in The Histories of the 5th century BC that Glaucus of Chios "was the man who single-handedly invented iron welding". [6] Forge welding was used in the construction of the Iron pillar of Delhi, erected in Delhi, India about 310 AD and weighing 5.4 metric tons. [7] Forge welding in 1904 [8]
Earmuffs cover a person's ears for thermal protection. Earmuffs consist of a thermoplastic or metal head-band, that fits over the top of the head, and a pad at each end, to cover the external ears. Earmuffs were invented by Chester Greenwood in 1873. [199] 1873 Silo. Two farm silos. A silo is a structure for storing bulk materials.
1439: Printing press in Mainz, Germany: The printing press is invented in the Holy Roman Empire by Johannes Gutenberg before 1440, based on existing screw presses. The first confirmed record of a press appeared in a 1439 lawsuit against Gutenberg. [376] Mid 15th century: The Arquebus (also spelled Harquebus) is invented, possibly in Spain. [377 ...
Mr. Baker claims that the particular mode of power used in creating the friction is not essential. It may be wind, water, gasoline, or any other source of energy. The most difficult part of the inventor's assertions to prove is that his system will light or heat a house at about half the cost of methods now in use. [5]
Amongst many other warships, all of the 46 Knox-class frigates built during the 1960s and 1970s were equipped with a 1,200-pound-per-square-inch (8,300 kPa) C-E power plant. C-E also was a leader in the development of large coal utility steam supply systems which were used worldwide.
Girls Coming to Tech!: A History of American Engineering Education for Women (MIT Press, 2014) Hill, Donald. A history of engineering in classical and medieval times (Routledge, 2013), on Greeks, Romans, Byzantines, and Arabs; Landels, John G. Engineering in the Ancient World (University of California Press, 2000, rev. ed.) ISBN 978-0-520-22782-8
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Conquistador Hernando de Soto, first European to visit Tennessee. In the 16th century, three Spanish expeditions passed through what is now Tennessee. [12] The Hernando de Soto expedition entered the Tennessee Valley via the Nolichucky River in June 1540, rested for several weeks at the village of Chiaha (near the modern Douglas Dam), and proceeded southward to the Coosa chiefdom in northern ...