Superconducting magnetic energy storage (SMES) devices store energy in a magnetic field. SMES devices include a superconductor wound around a core, to form a coil,…
On August 20, 1912, Edison received U.S. patent No. 1036470 for a “Phonographic Apparatus,” and patent No. 1036471 for a “Storage Battery” Phonograph is a…
On February 28, 1956, Jay Forrester was awarded a patent for his coincident current magnetic core memory. Forrester’s invention became the standard memory device for…