SUPERCONDUCTIVITY
Superconductivity is the phenomenon of zero electrical resistance that occurs when the temperature of certain materials falls below a characteristic level. When an electric current is applied to a coil of such material in a superconductive state, it continues to flow permanently because of this zero resistance, resulting in the creation of a very powerful magnetic force. In the SCMAGLEV, magnets on-board the vehicles achieve a superconducting state by cooling a niobium-titanium alloy with liquid helium to a temperature of -452 degrees Fahrenheit (-269°c).