Thermoscope

A thermoscope is a device that shows changes in temperature. A typical design is a tube in which a liquid rises and falls as the temperature changes. The modern thermometer gradually evolved from it with the addition of a scale in the early 17th century and standardisation throughout the 17th and 18th centuries.^[1]^[2]

^ Court, Arnold (12 May 1967). "Concerning an Important Invention" (PDF). Archived from the original (PDF) on 22 August 2016.
^ Sherry, David (2011). "Thermoscopes, thermometers, and the foundations of measurement" (PDF). Studies in History and Philosophy of Science. 42 (4): 509–524. Bibcode:2011SHPSA..42..509S. doi:10.1016/j.shpsa.2011.07.001.

[1] Court, Arnold (12 May 1967). "Concerning an Important Invention" (PDF). Archived from the original (PDF) on 22 August 2016.

[2] Sherry, David (2011). "Thermoscopes, thermometers, and the foundations of measurement" (PDF). Studies in History and Philosophy of Science. 42 (4): 509–524. Bibcode:2011SHPSA..42..509S. doi:10.1016/j.shpsa.2011.07.001.

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