Memory metal spring

This is a demonstration of a memory metal (Nitinol) spring. Taken from a Discovery Channel documentary. Thanks to those who pointed out that this is not really a new material as I thought. From Wikipedia: “The term nitinol is derived from its composition and its place of discovery: (Nickel Titanium-Naval Ordnance Laboratory - Ni Ti .). William J. Buehler along with Frederick Wang discovered its properties during research at the Naval Ordnance Laboratory in 1958.“ “The discovery of the shape-memory