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The timeline of historic inventions is a chronological list of particularly significant technological inventions and their ... 1940: Pu-239 isotope (isotope of ...
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 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; Timeline of United States inventions (after ...
History of technology by type; List of science timelines; The year 1940 in science and technology involved some significant events, listed below. Biochemistry
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.
Technology played a significant role in World War II.Some of the technologies used during the war were developed during the interwar years of the 1920s and 1930s, much was developed in response to needs and lessons learned during the war, while others were beginning to be developed as the war ended.
The 1940s (pronounced "nineteen-forties" and commonly abbreviated as "the '40s" or "the Forties") was a decade that began on January 1, 1940, and ended on December 31, 1949. Most of World War II took place in the first half of the decade, which had a profound effect on most countries and people in Europe , Asia , and elsewhere.
1940 The development of television technology for military purposes increases the resolution to 1029 lines at 25 frames per second. Commercial HDTV television reached that resolution almost half a century later.