“When cold weather occurs, people tend to congregate indoors, in more crowded environments, making it easier for germs to ...

Body-heat powered devices are one step closer to reality after a design breakthrough. You may not have considered your own body heat as renewable energy that could be harnessed. But given the ...

“We prepared a radiative cooling sunscreen that can not only significantly reduce the skin temperature but also protects the skin from being harmed by the UV radiation,” they wrote ...

However, despite their name, radiators actually transfer most of their heat to a room by convection, not radiation. Normally radiant heaters must be at least red hot before they are effective.

The white and red parts are the hottest and so are losing most heat. Orange and green represent medium temperatures, and blue and purple are the coldest parts. It is easy to see that the heads of ...

However, traditional blackbody radiation ... in energy exchange between the radiating body and all surrounding objects, significantly limiting heat transfer efficiency and thermal flow control.