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499: Aryabhata creates a particularly accurate eclipse chart. As an example of its accuracy, 18th century scientist Guillaume Le Gentil , during a visit to Pondicherry, India, found the Indian computations (based on Aryabhata's computational paradigm) of the duration of the lunar eclipse of 30 August 1765 to be short by 41 seconds, whereas his ...
However, other inventors before Bell had worked on the development of the telephone and the invention had several pioneers. [431] 1877: Thomas Edison invents the first working phonograph. [432] 1878: Henry Fleuss is granted a patent for the first practical rebreather. [433] 1878: Lester Allan Pelton invents the Pelton wheel.
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.
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.
1933 – Ernst Ruska: Invention of the electron microscope; 1935 – Subrahmanyan Chandrasekhar: Chandrasekhar limit for black hole collapse; 1937 - Majorana particle, hypothesized as a fermion that is its own antiparticle. 1937 – Muon discovered by Carl David Anderson and Seth Neddermeyer; 1938 – Pyotr Kapitsa: Superfluidity discovered
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 ...
Ethan Novek is a 21-year-old chemist and inventor. Novek spoke with In The Know about how his parents raised him to have a science-minded curiosity and how researchers who take the biggest risks ...
Its invention was a prerequisite for the development of philosophy and later science in ancient times. [2] Moreover, the extent to which philosophy and science would flourish in ancient times depended on the efficiency of a writing system (e.g., use of alphabets).