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History
Thermometer
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A thermometer is a device that measures temperature or temperature gradient. A thermometer has two important elements: (1) a temperature sensor in which some change occurs with a change in temperature; and (2) some means of converting this change into a numerical value. Thermometers are widely used in technology and industry to monitor processes, in meteorology, in medicine, and in scientific research.
Mercury thermometer (mercury-in-glass thermometer) for measurement of room temperature.
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
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.
A medical mercury-in-glass maximum thermometer.
An alcohol thermometer.
An alcohol thermometer.
Temperature measurement
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Temperature measurement describes the process of measuring a current temperature for immediate or later evaluation. Datasets consisting of repeated standardized measurements can be used to assess temperature trends.
A medical/clinical thermometer showing the temperature of 38.7 °C (101.7 °F)
A medical/clinical thermometer showing the temperature of 38.7 °C (101.7 °F)