This morning an enormous Maytag recall is announced. The fire hazard has prompted a Maytag Refrigerator recall, which affects 1.6 million units of refrigerators.

Refrigerators and other cooling devices may one day lose their compressors and coils of piping and become solid state, according to Penn State researchers who are investigating electrically induced heat effects of some ferroelectric polymers.

A team of physicists at the Low Temperature Laboratory in Helsinki, Finland have built the world's first heat transistor. A working prototype, which uses an electrical signal to control the flow of heat, measures only a few millionths of a meter across.