Mechanical Discoveries

Austin—Motor Car. Bell, Graham—Telephone. Berliner—Microphone. Brequet—Helicopter. Bushwell—Submarine. Caxton—Printing Press. Colt—Revolver. Daimler—Gas engine. Davy—Miner’s Safety Lamp. Diesel—Internal Combustion engine (Diesel engine). Dunlop—Pneumatic tyre. Edison—First electric bulb... Read More