Temperature ? a term that we use daily as a matter of course, without being made alert to the physical correlations. But how may be the term temperature defined?
Everybody perceives temperature in their environment purely subjectively. If we have been too warm or too cold, it is just a feeling, which may be different from individual to individual ? because not everyone gets cold at exactly the same speed. The term temperature ? or, better, the problem, 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. Heat is really a measure of the energy of a body, which is generated by the random motion of its atoms or molecules within the body?s interior. Here, Enraged is the magnitude of circumstances which establishes the power content associated 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 inside a body are at 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 because the freezing point of water, since this condition could be reproduced without great technical effort in past times.
Temperature measurement
Different physical properties are directly dependent on the temperature and thus are employed for temperature measurement, such as for example, for example:
the dependence of expansion on temperature
the change in electrical resistance with temperature
voltage generation with respect to the temperature
temperature-dependent frequency fluctuations
changes in the wavelength of rays of a body, based on the temperature
Note
Home elevators our temperature measuring instruments can be found on the WIKA Website.g