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Daniel Gabriel Fahrenheit, German physicist and instrument maker. He spent most of his life in the Netherlands, where he devoted himself to the study of physics and the manufacture of precision meteorological instruments. He is best known for inventing a successful alcohol thermometer (1709) and mercury thermometer (1714) and for developing the Fahrenheit temperature scale, setting zero at the freezing point of an equal mixture of ice and salt. He discovered that water can remain liquid below its freezing point and that the boiling point of liquids varies with atmospheric pressure....
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The Royal Society of London
The Royal Society, formally The Royal Society of London for Improving Natural Knowledge, is a learned society and the United Kingdom's national academy of sciences. Founded on 28 November 1660, it was granted a royal charter by King Charles II as "Th... |
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Anders Celsius, Temperature Scale
Anders Celsius became famous for his recommendation in 1742 to divide the temperature scale of a mercury thermometer at 760mm mercury air pressure into 100 degrees, where 100 is the frozing point and 0 the boiling point of water. Because of the detai... |
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Lord Kelvin, William Thomson
The Right Honourable William Thomson, 1st Baron Kelvin, GCVO, OM, PC, PRS was a Scottish-Irish mathematical physicist and engineer, an outstanding leader in the physical sciences of the 19th century. Kelvin is known especially for his work on heat an... |
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