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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
In October 2014, American inventor Greg Henderson demonstrated a prototype hoverboard working on a magnetic levitation system using the electrodynamic wheel principle. Similar to maglev trains, the hoverboard requires a surface of non- ferromagnetic metal such as copper or aluminum to function, carrying up to 140 kg (300 lb) while hovering 2.5 ...
The Slinky was invented in 1943 by American engineer Richard T. James while working in his home laboratory to invent a set of springs that could be used to support sensitive instruments on board ships and stabilize them even in rough seas. When he once accidentally knocked one of his springs off a shelf, James saw that, rather than flopping in ...
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.
The SERF magnetometer was invented by Michael V. Romalis at Princeton University in 2002. [28] 2003 Fermionic condensate. A fermionic condensate is a superfluid phase formed by fermionic particles at low temperatures. The first atomic fermionic condensate was invented by Deborah S. Jin in 2003. [29] 2005 YouTube
A self-balancing scooter (also hoverboard, self-balancing board, segway, [1] swegway or electric scooter board) is a self-balancing personal transporter consisting of two motorized wheels connected to a pair of articulated pads on which the rider places their feet. The rider controls the speed by leaning forward or backward, and direction of ...
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. [308] Later bridges constructed utilizing cables of iron chains appeared in Tibet. [309] [310]
Pages in category "American inventions" The following 200 pages are in this category, out of approximately 827 total. This list may not reflect recent changes .