Heat can only be transferred through three means: conduction, convection and radiation. Of these, conduction is perhaps the most common, and occurs regularly in nature.

Slide 1 of 3, Diagram showing a metal bar being heated over a flame. A section shows the atoms inside the metal. It is labelled Metal, Atom and Heat., Conduction in metal A metal bar is heated up ...

People who design spacecraft must prioritize two factors: reducing weight and managing extreme temperatures. A new experiment designed by Purdue University engineers addresses both problems. The Flow ...

Quantum mechanics sets a fundamental upper limit for the flow of heat. Such quantum-limited heat conduction is now observed over macroscopic distances, extending to a metre, in superconducting ...

The new variety of heat transfer is a result of the Casimir effect, which describes how quantum fluctuations produce an attractive force between two surfaces separated by a vacuum (SN: 3/2/15).