Nikola Tesla Inventions

Patented in 1916 ( U.S. Patent 1,209,359 ), Tesla's air-friction speedometer used rotating disks against air resistance for accurate velocity measurement, avoiding mechanical gears. Applied in...

Patented in 1888 under U.S. Patent 381,969, Nikola Tesla's alternating current (AC) induction motor revolutionized electrical engineering by using a rotating magnetic field to drive a rotor without...

While no patent applications were submitted for this device, it has become synonymous with Tesla, mentioned in almost every biography written about him. The Egg of Columbus was also one of Tesla's...