When the separation of two surfaces approaches sub-nanometre scale, the boundary between the two most fundamental heat transfer modes, heat conduction by phonons and radiation by photons, is blurred.

Radiation heat transfer exceeding the blackbody limit at nanosize separation gaps has been experimentally confirmed in the scanning probe-surface 1,2,3, scanning probe-film 4, microsphere-surface ...

Fundamentals of heat transfer by conduction, convection, radiation. Steady and transient heat conduction in solids. Forced and free convection in fluids. properties of thermal radiation. Radiation ...

The approach accommodates backgrounds temperatures ranging from 80 to 800 Kelvin to assess the performance of novel variable emittance coatings for thermal control of spacecraft.

Editor’s note: The KOIN 6 Weather team is presenting weather and science lessons to help serve our teachers and students. Click here for more lessons. PORTLAND, Ore. (KOIN) – We’re heating up the ...

Fundamentals of heat transfer by conduction, convection, radiation. Steady and transient heat conduction in solids. Forced and free convection in fluids. properties of thermal radiation. Radiation ...

The researchers have made a major advance in controlling radiative heat flow at the nanoscale by combining topological physics with thermal metaphotonics. Their study, published in npj Metamaterials, ...

The particles of liquids are further apart than solids. This means that most liquids are poor conductors of heat because the frequency of collisions is reduced. The particles of gases are even further ...

The transfer of heat is a vital element in a host of electronic applications today. These include thermoelectrics and optoelectronics such as photodetection, light-harvesting, thermal management, and ...

A team of engineers and scientists has identified a source of electronic noise that could affect the functioning of instruments operating at very low temperatures, such as devices used in radio ...