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How do we measure temperature?

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How do we measure temperature? Temperature is a measurement of the amount of heat that is stored in an object. It is measured against a scale in either degrees Celsius (C) or degrees Fahrenheit (F) on a thermometer.

The Celsius scale starts at the freezing point of water (0C) and measures the boiling point of water at 100C. The centre of the Sun probably reaches an incredible temperature of 150 millionC.

The absolute minimum temperature possible is -273 C, or absolute zero, where it is so cold that molecules and atoms stop moving altogether. More ordinary temperatures are measured using thermometers that contain a liquid such as mercury or colored alcohol.

Other thermometers use electronic sensors or the expansion of a metal coil to turn an indicating needle.


Tags: thermometer



Category: Science & Tech  - ( Science & Tech Archive)

Date Added: 13 December '11


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