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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
A hoverboard (or hover board) is a fictional levitating board used for personal transportation, first described in science-fiction, and made famous by the appearance of a skateboard-like hoverboard in the film Back to the Future Part II. Many attempts have been made to invent a functioning hoverboard.
Tapered roller bearings are bearings that can take large axial forces as well as being able to sustain large radial forces. They were co-invented by German-American Henry Timken and Reginald Heinzelman. [56] On August 27, 1897, Timken and Heizelman filed U.S. patent #606,635 which was issued to them jointly on June 28, 1898. [57] 1897 Ice cream ...
Shane Chen (Chinese: 陈星; [1] born 10 February 1956 in Beijing, China) is a Chinese-American inventor and entrepreneur based in Camas, Washington. [2] He is best known for inventing the self-balancing hoverboard. [3] [4]
A timeline of United States inventions (after 1991) encompasses the ingenuity and innovative advancements of the United States within a historical context, dating from the Contemporary era to the present day, which have been achieved by inventors who are either native-born or naturalized citizens of the United States.
1890s – Bike boom sweeps Europe and America with hundreds of bicycle manufacturers in the biggest bicycle craze to date; 1890 - The City and South London Railway (C&SLR) was the first deep-level underground "tube" railway in the world, [31] [note 1] and the first major railway to use electric traction; 1893 - Recumbent bicycles invented.
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 .
4th century: Simple suspension bridge, independently invented in Pre-Columbian South America, and the Hindu Kush range, of present-day Afghanistan and Pakistan. With Han dynasty travelers noting bridges being constructed from 3 or more vines or 3 ropes. [306] Later bridges constructed utilizing cables of iron chains appeared in Tibet. [307] [308]