Temperature ? What actually is it?

Massive ? a term that people use daily as a matter needless to say, without being made aware of the physical correlations. But how may be the term temperature defined?
Everybody perceives temperature within their environment purely subjectively. If we have been too warm or too cold, this is a feeling, which might be different from person to person ? because not everyone gets cold at the same speed. The word temperature ? or, better, the problem, that influences (among other things) our mind-set ? is discussed daily whenever we are discussing the expected temperature from the weather forecast with friends, acquaintances or colleagues.
Temperature
With the term temperature (from the Greek ?thermis? = warm), a specific thermal state of a body is described. Heat is really a measure of the power of a body, that is generated by the random motion of its atoms or molecules in the body?s interior. Here, the temperature is the magnitude of a state which establishes the energy content connected with other physical quantities (mass, heat capacity).
Temperature unit
The machine of temperature is the Kelvin. At a temperature of 0 K, all atoms or molecules within a body are in rest ? all motion in the body is frozen. One describes this state as the absolute zero point. The Celsius temperature scale that is more common inside our latitudes defines the zero point as the freezing point of water, since this problem could be reproduced without great technical effort in past times.
Temperature measurement
Different physical properties are directly influenced by the temperature and thus are used for temperature measurement, such as, for example:
the dependence of expansion on temperature
the change in electrical resistance with temperature
voltage generation depending on the temperature
temperature-dependent frequency fluctuations
changes in the wavelength of rays of a body, according to the temperature
Note
Home elevators our temperature measuring instruments are available on the WIKA Website.

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