I wanted to work with hotter material, and this was so hot it blew up in my face".
One idea says that lava slowly circulates to the surface, cools off a bit, then sinks back to be replaced by fresher, hotter material.
Above that, the sun roils as hotter material rises and cooler material falls.
The process is driven by convection (the process of heat transfer which pushes hotter material upwards and cooler, denser material down) in the mantle region below the crust.
Scientists believe that because of the thinness of the crust, hotter material can get closer to the surface and cause temblors.
When hot materials become luminous and radiate light, a process called incandescence, the atoms of the material are in a high state of agitation.
Thinning out the pools by removing old fuel would still leave the hottest materials in place but would reduce the chance of fire.
Although fires give off carbon dioxide, carbon monoxide and water vapour, Sun's interest lies in "volatile species" - invisible organic molecules - released early on by hot materials such as fire retardants.
Nanowires and nanotubes, slender structures that are only a few billionths of a meter in diameter but many thousands or millions of times longer, have become hot materials in recent years.
Kevin Compton Kleiner Perkins Caufield & Byers HOT: Materials science as it relates to nanotech in chip development, allowing for tinier geometries and hybrids of traditional and molecular memory.
Thermo and fire resistance of Hypalon (DuPont, DE, USA) allow the same role of coating conveyer belts for the transportation of hot materials.
