Thermometer calibration. 19th-century illustration of the calibration of a thermometer, showing the setting of the zero point using melting ice. Therm

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Thermometer calibration. 19th-century illustration of the calibration of a thermometer, showing the setting of the zero point using melting ice. Thermometers are commonly calibrated to the melting point of ice and the boiling point of water. This illustration is from 'Physique Populaire' (Emile Desbeaux, 1891).

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Size: 3355px × 5208px
Photo credit: © Science Photo Library / Alamy / Afripics
License: Licensed
Model Released: No

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