https://wikimd.org/index.php?action=history&feed=atom&title=ThermometerThermometer - Revision history2026-04-26T10:52:33ZRevision history for this page on the wikiMediaWiki 1.44.2https://wikimd.org/index.php?title=Thermometer&diff=6323859&oldid=prevPrab: CSV import2025-02-18T11:40:30Z<p>CSV import</p>
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<p><b>New page</b></p><div>'''Thermometer'''<br />
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A '''thermometer''' is a device that measures [[temperature]] or a temperature gradient (the degree of hotness or coldness of an object). A thermometer has two important elements: (1) a temperature sensor (e.g. the bulb of a mercury-in-glass thermometer or the pyrometric sensor in an infrared thermometer) in which some change occurs with a change in temperature, and (2) some means of converting this change into a numerical value (e.g. the visible scale that is marked on a mercury-in-glass thermometer or the digital readout on an infrared model).<br />
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==History==<br />
The thermometer was invented by [[Galileo Galilei]] in 1593. It was a tube filled with air, with a water-filled bulb at the bottom. As the air expanded or contracted with temperature changes, the water level in the tube would rise or fall, indicating the temperature.<br />
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==Types of Thermometers==<br />
There are several types of thermometers, each with its own specific uses and advantages. These include:<br />
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* '''Mercury Thermometers''': These are the traditional types of thermometers. They are made of a glass tube filled with mercury, which expands and rises up the tube as the temperature increases.<br />
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* '''Digital Thermometers''': These thermometers use electronic sensors to measure temperature. They are often used in homes and medical facilities due to their accuracy and ease of use.<br />
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* '''Infrared Thermometers''': These thermometers measure the infrared energy emitted by an object to determine its temperature. They are often used in industrial applications and in cooking.<br />
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* '''Bimetallic Strip Thermometers''': These thermometers use a strip of two different metals that expand at different rates as the temperature changes. They are often used in thermostats and other devices that need to control temperature.<br />
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==Uses==<br />
Thermometers are used in a variety of applications, including:<br />
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* '''Medical''': Thermometers are used to measure body temperature in order to detect fever or other medical conditions.<br />
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* '''Industrial''': Thermometers are used in various industrial applications to monitor and control temperature.<br />
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* '''Meteorological''': Thermometers are used in weather stations to measure air temperature.<br />
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* '''Cooking''': Thermometers are used in cooking to ensure that food is cooked to the correct temperature.<br />
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==See Also==<br />
* [[Temperature]]<br />
* [[Galileo Galilei]]<br />
* [[Mercury (element)]]<br />
* [[Infrared]]<br />
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[[Category:Measurement devices]]<br />
[[Category:Temperature]]<br />
[[Category:Medical equipment]]<br />
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