👉 Heatless is a concept in physics that refers to processes or systems where energy is not transferred from one form to another but rather changes its state without emitting any heat. This contrasts with thermal energy transfer, which involves transferring energy between two objects through the movement of matter or heat. In other words, heatless systems do not require any external sources of energy, such as a source of electricity, to operate. Instead, they use their own internal mechanisms to maintain and regulate their temperature without emitting heat.