thermometer: Quick Facts

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Photos

Round thermometer mounted outside a window shows a temperature below 0 degrees Fahrenheit. The window has frost and cracks, with snow on the sill.

A wet bulb dry bulb thermometer, or hygrometer, with two glass thermometers mounted on a yellow board labeled dry and wet, used to measure humidity.

Mercury thermometer

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Topics

gas thermometer clinical thermometer bimetal strip electrical air thermometer electrical-resistance thermometer liquid thermometer wet-bulb thermometer thermography thermocouple pyrometer Temperature–humidity index bathythermograph thermistor radiation measurement particle accelerator psychological testing measurement system productivity clock lubrication

Key People

Galileo

Galileo

Italian natural philosopher, astronomer, and mathematician

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Daniel Gabriel Fahrenheit

Polish-born Dutch physicist

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Guillaume Amontons

French physicist

barometer. Antique Barometer with readout. Technology measurement, mathematics, measure atmospheric pressure

Fun Facts of Measurement & Math