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Rumfords calorimeter, 1887. During his work in determining the efficiency of different fuels the Anglo-American scientist Benjamin Thompson, Count Rumford (1753-1814)
Chemistry, furnace utensils, 1751-1777. Artist: Denis DiderotChemistry, furnace utensils, 1751-1777. A print from the Encyclopedie, ou Dictionnaire Raisonne des Sciences, des Arts et des Metiers by Diderot & d Alembert, 1751-1777. Private Collection