#fleeting #thermodynamics The Curie temperature is the temperature at which a ferrous metal stops being magnetic. I found it mentioned as a useful aspect of metals for use in radiating systems in [[Heat Radiators (Spaceships)|Spaceship heat radiators]]. One could use an electromagnetic heater to heat a piece of metal up to the Curie temperature (T_C) at which point the metal would fall off the magnet and cool down, once it's cooled it would become attracted to the electromagnet again and become heated.