Why can we make heat without expunging cold, but not the inverse (make cold without expunging heat)?
In: Physics
In the terms of energy there is no such thing as “cold energy” there is only the presence it absence of energy in the form of heat. We call that absence of energy “cold”. We feel it as cold because energy seeks equilibrium, thus our higher energy body leaks energy into the low energy “cold” object making us in turn feel that loss of energy as the sensation of cold.
So a heater simply supplies heat into an absence of heat “warming up” the object. Air conditioning takes heat and moves it out of an area thus “cooling down” the area. So it’s not that were making hot or cold, we’re actually just moving “hot” around.
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