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[[File:Coat_of_Arms_of_Benjamin_Thompson.svg|Coat of Arms of Benjamin Thompson|thumb]] [[File:Benjamin_Thompson_Statue_in_Woburn_Massachusetts.jpg|Benjamin Thompson Statue in Woburn Massachusetts|thumb|left]] [[Image:Count_Rumford.jpg|Count Rumford|thumb|left]] [[File:Benjamin_Thompson_English_garden_Munich.jpg|Benjamin Thompson English garden Munich|thumb]] [[File:Rumford_Tyroff_BY_2-05_(cropped_2).jpg|Rumford Tyroff BY 2-05 (cropped 2)|thumb]] '''Benjamin Thompson, Count Rumford''' (March 26, 1753 – August 21, 1814) was an American-born British physicist and inventor whose challenges to established physical theory were part of the 19th-century revolution in thermodynamics. In addition to his scientific work, Thompson was also a social reformer who applied scientific principles to the design of practical devices and innovations to improve the British military, the lives of the poor, and the efficiency of domestic appliances.

==Early Life==
Benjamin Thompson was born in rural [[Woburn, Massachusetts]], in the [[Thirteen Colonies]]. His early education was modest, but he displayed a keen interest in the mechanics and the nature of heat, which would define his later scientific endeavors.

==Career==
Thompson's career was diverse and spanned various disciplines and countries. Initially involved in the American side during the early stages of the [[American Revolutionary War]], his loyalist sympathies led him to flee to Britain in 1776, where his scientific and administrative talents were recognized and rewarded.

===Contributions to Thermodynamics===
Thompson's experiments on the nature of heat and light challenged the prevailing caloric theory of heat, proposing instead that heat was a form of motion. His work on the mechanical equivalent of heat laid the groundwork for the later development of the [[laws of thermodynamics]].

===Inventions and Innovations===
Among Thompson's notable inventions were the [[Rumford fireplace]], designed to improve heating efficiency and reduce smoke, and the [[Rumford stove]], an early version of the kitchen range that was more efficient than traditional open fires. He also improved the design of cannons and introduced practical kitchen utensils, including the coffee percolator.

===Social Reforms===
Thompson applied his scientific knowledge to social reform, particularly in the areas of public health and poverty. He was instrumental in the establishment of the [[Royal Institution of Great Britain]], which aimed to apply scientific discoveries for practical purposes. His work in Bavaria, where he was employed by the Elector Charles Theodore, included the establishment of workhouses for the poor, reforms in the army, and the introduction of the potato as a staple crop to reduce famine.

==Legacy==
Thompson's contributions to science, particularly in the field of thermodynamics, and his practical inventions have had a lasting impact. He was made a Count of the Holy Roman Empire, choosing the title "Count of Rumford" after the New Hampshire town where he had held a minor political post.

==Death==
Benjamin Thompson died in [[Paris]], France, on August 21, 1814. His legacy is preserved in the institutions he helped to found and in the ongoing relevance of his scientific and social reforms.

[[Category:American inventors]]
[[Category:British scientists]]
[[Category:Physicists]]
[[Category:People from Massachusetts]]
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Benjamin Thompson - Revision history

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