Energy

Watt's patent, An Invented Method of Lessening the Consumption of Steam and Fuel in Fire Engines, covered the separate condenser. ...

Edison's 1879 high-resistance carbon filament made electric lighting commercially real, patented in 1880 after months of material ...

Tesla patented the rotating-field induction motor, selling the patents to Westinghouse for cash plus royalties, later waived to sa...

Diesel patented compression ignition, where air heated by squeeze fires the fuel, far exceeding steam efficiency. US patent 542,84...

Bell Labs' 1954 silicon photovoltaic cell, patented 1957, converted about 6 percent of sunlight, first powering rural telephone re...

Fermi's team achieved the first controlled chain reaction in December 1942 under Stagg Field, wartime secrecy burying the news. Th...

General Electric's Holonyak made gallium arsenide phosphide glow red in 1962, predicting lamps that would replace Edison's filamen...

Goodenough's 1980 cobalt-oxide cathode at Oxford, unpatented by the university, met Yoshino's carbon anode at Asahi Kasei, patente...