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The timeline of historic inventions is a chronological list of particularly ... The 15th-century invention of the printing press with ... 20th century 1900s. 1900 ...
20th-century percussion instruments (21 P) Pages in category "20th-century inventions" The following 128 pages are in this category, out of 128 total.
The electric flash-lamp is a device that uses an electrical circuit to trigger a fuse to ignite explosive powder such as magnesium, for a brief sudden burst of bright light "flash" from a chemical reaction of flash powder burning. It was principally used for flash photography in the early 20th century, but had other uses as well.
The new beginning of the 20th century marked significant changes. The 1900s saw the decade herald a series of inventions, including the automobile, airplane and radio broadcasting. 1914 saw the completion of the Panama Canal.
21st century; Timelines; 19th century; 20th century; 21st century; State leaders; 19th century; ... Invention of the optical disc and the cassette tape.
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.
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 ...
3rd century BC: Archimedes uses the method of exhaustion to construct a strict inequality bounding the value of π within an interval of 0.002. 3rd century BC: Archimedes develops the field of statics, introducing notions such as the center of gravity, mechanical equilibrium, the study of levers, and hydrostatics.