Name: An engraving depicting Breguet's modified metallic thermometer, which depended on the unequal expansion of metals. Three strips of platinum, gold, and silver, were formed into a thin ribbon then coiled into a spiral. When temperatures rose, the silver on the inside expanded more than the platinum on the outside, and the needle moved. Dated 20th century - SuperStock
Brand: Image Asset Management
SKU: 1746-29960798
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An engraving depicting Breguet's modified metallic thermometer, which depended on the unequal expansion of metals. Three strips of platinum, gold, and silver, were formed into a thin ribbon then coiled into a spiral. When temperatures rose, the silver on the inside expanded more than the platinum on the outside, and the needle moved. Dated 20th century

SuperStock offers millions of photos, videos, and stock assets to creatives around the world. This image of An engraving depicting Breguet's modified metallic thermometer, which depended on the unequal expansion of metals. Three strips of platinum, gold, and silver, were formed into a thin ribbon then coiled into a spiral. When temperatures rose, the silver on the inside expanded more than the platinum on the outside, and the needle moved. Dated 20th century by World History Archive/Image Asset Management is available for licensing today.