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An image from John Dalton's A New System of Chemical Philosophy, the first modern explanation of atomic theory.. This timeline of chemistry lists important works, discoveries, ideas, inventions, and experiments that significantly changed humanity's understanding of the modern science known as chemistry, defined as the scientific study of the composition of matter and of its interactions.
6th century: Varahamira in the Gupta empire is the first to describe comets as astronomical phenomena, and as periodic in nature. [ 90 ] 525: John Philoponus in Byzantine Egypt describes the notion of inertia, and states that the motion of a falling object does not depend on its weight. [ 91 ]
Heron (c. 10–70), Roman Egypt – usually credited with invention of the aeolipile, although it may have been described a century earlier; John Herschel (1792–1871), UK – photographic fixer (hypo), actinometer; Harry Houdini (1874–1926) U.S. – flight time illusion; Heinrich Hertz (1857–1894), Germany – radio telegraphy ...
The timeline of historic inventions is a chronological list of particularly significant technological inventions and their inventors, where known. [ a ] The dates in this article make frequent use of the units mya and kya , which refer to millions and thousands of years ago, respectively.
Francesco Bellini (born 1947), research scientist, doctor in organic chemistry; Andrey Belozersky (1905–1972), Soviet biologist and biochemist, doctor in biological sciences; Ruth R. Benerito (1916–2013), American chemist known for inventions relating to textiles; Paul Berg (1926–2023), American biochemist,1980 Nobel Prize in Chemistry
Diversion dam — The first Diversion dam is Sadd el-Kafara Dam built in Egypt around 2700 B.C. [19]; Noria — Norias appeared in Egypt in the 4th Century B.C. [20]; Beekeeping — domesticated Beekeeping was first recorded in ancient Egypt around 2600 B.C. [21] [22] as well as the first use of smoke while extracting the honey from bee nests.
Public Domain. Henry Ford is known for many things — the most prominent being mass-manufactured cars and paying workers respectable wages. But his first automobile, made in 1896, was powered by ...
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.