Search results
Results From The WOW.Com Content Network
[481] [483] Libby and James Arnold succeeded with the radiocarbon dating theory after results were published in Science in December 1949. [484] [485] 1946: James Martin invents the ejector seat, inspired by the death of his friend and test pilot Captain Valentine Baker in an aeroplane crash in 1942. 1947: Holography is invented by Dennis Gabor.
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; Timeline of United States inventions (after 1991), after the dissolution of the Soviet Union
An axe made of iron, dating from the Swedish Iron Age, found at Gotland, Sweden: Iron—as a new material—initiated a dramatic revolution in technology, economy, society, warfare and politics. A technological revolution is a period in which one or more technologies is replaced by another new technology in a short amount of time.
From the first Apple computer to the COVID-19 vaccine, here are the most revolutionary inventions that were born in the U.S.A. in the past half-century.
As a result, book-sized computers of today can outperform room-sized computers of the 1960s, and there has been a revolution in the way people live – in how they work, study, conduct business, and engage in research. World War II had a profound impact on the development of science and technology in the United States.
A timeline of United States inventions (1890–1945) encompasses the innovative advancements of the United States within a historical context, dating from the Progressive Era to the end of World War II, which have been achieved by inventors who are either native-born or naturalized citizens of the United States.
The phase-change incubator is a low-cost, low-maintenance incubator to help test for microorganisms in water supplies. It uses small balls containing a chemical compound that, when heated and then kept insulated, will stay at 37 °C (approx. 99 °F) for 24 hours. MIT professor and engineer Amy B. Smith invented the phase-change incubator in 1999.
Overall, the entire nation was turned into a vast war machine, affecting society more than any other conflict fought by the United States, except perhaps the Civil War. After winning re-election to unprecedented third and fourth terms, Roosevelt's health was rapidly deteriorating; he died on April 12, 1945.