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 ...

One of the world's thinnest condoms, offering 85% more body heat transfer than standard latex condoms, is now available to purchase in Canada "Graphene is like a magic ingredient for condoms.