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In 1787, American inventor Oliver Evans revolutionized this labor-intensive process by building the first fully automatic mill using bucket elevators, screw conveyors, and the hopper boy to spread, cool, and dry the meal between grinding and bolting. This was the first time that anyone had conceived and executed a system of continuous, fully ...
Franklin sent a sample of soybeans to prominent American botanist John Bartram and had previously written to British diplomat and Chinese trade expert James Flint inquiring as to how tofu was made, [272] with their correspondence believed to be the first documented use of the word "tofu" in the English language.
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
1911: The cloud chamber, the first particle detector, is invented by Charles Thomson Rees Wilson. 1912: The first commercial slot cars or more accurately model electric racing cars operating under constant power were made by Lionel (USA) and appeared in their catalogues in 1912. 1912: The first use of articulated trams by Boston Elevated Railway.
The tokens were then progressively replaced by flat tablets, on which signs were recorded with a stylus. Actual writing is first recorded in Uruk (modern Iraq), at the end of the 4th millennium BC, and soon after in various parts of the Near East. [30] An ancient Sumerian poem gives the first known story of the invention of writing:
Thomas Alva Edison (February 11, 1847 – October 18, 1931) was an American inventor and businessman. [1] [2] [3] He developed many devices in fields such as electric power generation, mass communication, sound recording, and motion pictures. [4]
Pages in category "American inventions" The following 200 pages are in this category, out of approximately 829 total. This list may not reflect recent changes .
Oliver Evans (September 13, 1755 – April 15, 1819) was an American inventor, engineer, and businessman born in rural Delaware and later rooted commercially in Philadelphia. He was one of the first Americans to build steam engines and an advocate of high-pressure steam (as opposed to low-pressure steam).