Thermometer
Videos
A thermometer is a device that measures temperature. A thermometer has two important elements: a temperature sensor in which some change occurs with a change in temperature; and some means of converti
Mercury thermometer (mercury-in-glass thermometer) for measurement of room temperature.
Fifty-degree thermometers from the mid-17th century on exhibit at the Museo Galileo with black dots representing single degrees and white represented 10-degree increments; used to measure atmospheric temperatures
A medical mercury-in-glass maximum thermometer
An alcohol thermometer