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Cross-listed in Writers

Jean le Rond d'Alembert

borndied
1717, Nov 161783, Oct 29
a French mathematician, mechanician, physicist, philosopher, and music theorist. Until 1759 he was also co-editor with Denis Diderot of the Encyclopédie. D'Alembert's formula for obtaining solutions to the wave equation is named after him. The wave equat...
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Cross-listed in Educators

John Dalton

bornactivedied
1766, Sep 61781-18441844, July 27
an English chemist, physicist, and meteorologist. He is best known for proposing the modern atomic theory, and for his research into colour blindness, sometimes referred to as Daltonism in his honour. Dalton's family too poor to support him for long and he began to earn his living at the age of ten in the service of a wealthy local Quaker, Elihu Robinson. It...
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Cross-listed in Inventors

John Frederic Daniell

borndied
1790, Mar 121845, Mar 13
an English chemist and physicist. His name is best known for his invention of the Daniell cell, an element of an electric battery much better than voltaic cells. He also invented the dew-point hygrometer known by his name (Quar. Journ. Sci., 1820), and a register pyrometer (Phil. Trans., 1830); and in 1830 he erected in the hall of the Royal Society a water-...
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Cross-listed in ExplorersWriters

Charles Darwin

bornactivedied
1809, Feb 121827-18721882, Apr 19
an English naturalist and geologist, best known for his contributions to the science of evolution. He established that all species of life have descended over time from common ancestors, and in a joint publication with Alfred Russel Wallace introduced h...
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Cross-listed in WritersInventors

Sir Humphry Davy

bornactivedied
1778, Dec 171795-18291829, May 29
a Cornish chemist and inventor, who is best remembered today for his discoveries of several alkali and alkaline earth metals, as well as contributions to the discoveries of the elemental nature of chlorine and iodine. He also studied the forces involved in these separations, inventing the new field of electrochemistry. In 1799 Davy experimented with nitrous ...
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Cross-listed in Physicians

David de Gorter

borndied
1717, Apr 301783, Apr 8
a Dutch physician and botanist. He was professor at the University of Harderwijk and royal physician to Empress Elizabeth of Russia. He was a member of Imperial Academy of Sciences in St Petersburg, the Royal Swedish Academy of Sciences and other academies and learned societies.
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Cross-listed in InventorsCommerce

John Deere

bornactivedied
1804, Feb 71821-18861886, May 17
an American blacksmith and manufacturer who founded Deere & Company, one of the largest and leading agricultural and construction equipment manufacturers in the world. Born in Rutland, Vermont, Deere moved to Illinois and invented the first commercially successful steel plow in 1837.
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Giovanni Demisiani

borndied
unknown1614
a Greek from Zakynthos, was a theologian, chemist, mathematician to Cardinal Gonzaga, and member of the Accademia dei Lincei. Demisiani is noted for coining the name telescope (from the Greek, tele "far" and skopein "to look or see") for a version of the instrument presented by more
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Cross-listed in ClergyWriters

William Derham

borndied
1657, Nov 261735, Apr 5
an English clergyman, natural theologian and natural philosopher. He produced the earliest, reasonably accurate estimate of the speed of sound. In 1696, he published his Artificial Clockmaker, which went through several editions. The best known of his subsequent works are Physico-Theology, published in 1713; Astro-Theology, 1714; and Christo-Theology, 1730. ...
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Cross-listed in Writers

Rene Descartes

aka: René , Renatus Cartesius
bornactivedied
1596, Mar 311619-16501650, Feb 11
a French philosopher, mathematician, and scientist. Dubbed the father of modern western philosophy, much of subsequent Western philosophy is a response to his writings, which are studied closely to this day. He spent about 20 years of his life in the Dutch Republic. Descartes' Meditations on First Philosophy continues to be a standard text at most uni...
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Cross-listed in Inventors

Johann Wolfgang Dobereiner

aka: Döbereiner
borndied
1780, Dec 131849, Mar 24
a German chemist who is best known for work that foreshadowed the periodic law for the chemical elements. He become a professor of chemistry and pharmacy at the university of Jena. Döbereiner also is known for his discovery of furfural, for his work on the use of platinum as a catalyst, and for a lighter, known as Döbereiner's lamp.
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Cross-listed in WritersPhysicians

Rembert Dodoens

aka: Rembertus Dodonaeus
borndied
1517, Jun 291585, Mar 10
a Flemish physician and botanist. Dodoens was born in Mechelen. In 1530 he began his studies in medicine, cosmography and geography at the University of Leuven, where he graduated in 1535. He established himself as a physician in Mechelen in 1538. He married Kathelijne De Bruyn(e) in 1539. He had a short stay in Basel (1542–1546). He turned down a chair at...
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Cross-listed in Writers

John William Draper

borndied
1811, May 51882, Jan 4
an English-American scientist, philosopher, physician, chemist, historian and photographer. He is credited with producing the first clear photograph of a female face (1839–40) and the first detailed photograph of the moon in 1840. He was also the first president of the American Chemical Society (1876–77) and a founder of the New York University School of...
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Cross-listed in ExplorersNavalCartographers

Jules Dumont d'Urville

borndied
1790, May 231842, May 8
a French explorer, naval officer and rear admiral, who explored the south and western Pacific, Australia, New Zealand and Antarctica. As a botanist and cartographer he left his mark, giving his name to several seaweeds, plants and shrubs, and places such as D'Urville Island.
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