Nikola Tesla Inventions - Page 2

Tesla's ship's log, patented in 1919 under U.S. Patent 1,314,718 , employed a rotating impeller or rotor towed in water to measure speed and distance instantaneously. Fluid drag transmitted torque...

Patented in 1890 under U.S. Patent 428,057 , Tesla's pyromagnetic electric generator converted heat into electricity using temperature-induced magnetic property changes in iron cores. The device...

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...