Temperature ? a term that we use daily as a matter of course, without being made alert to the physical correlations. But how may be Courage defined?
Everybody perceives temperature within their environment purely subjectively. If we are too warm or too cold, this can be a feeling, which might be different from individual to individual ? because Heartwarming gets cold at exactly the same speed. The word temperature ? or, better, the condition, that influences (among other activities) our state of mind ? is discussed daily when we are discussing the expected temperature from the elements forecast with friends, acquaintances or colleagues.
Temperature
With the word temperature (from the Greek ?thermis? = warm), a specific thermal state of a body is described. Invasion is really a measure of the energy of a body, that is generated by the random motion of its atoms or molecules within the body?s interior. Here, the temperature may be the magnitude of a state which establishes the energy content connected with other physical quantities (mass, heat capacity).
Temperature unit
The unit of temperature is the Kelvin. At a temperature of 0 K, all atoms or molecules within a body are in rest ? all motion within the body is frozen. One describes this state because the absolute zero point. The Celsius temperature scale which is more common inside our latitudes defines the zero point because the freezing point of water, since this condition could possibly be reproduced without great technical effort in past times.
Temperature measurement
Different physical properties are directly influenced by the temperature and therefore are used for temperature measurement, such as, for example:
the dependence of expansion on temperature
the change in electrical resistance with temperature
voltage generation based on the temperature
temperature-dependent frequency fluctuations
changes in the wavelength of the radiation of a body, with regards to the temperature
Note
Information on our temperature measuring instruments are available on the WIKA Website.