Davy—Miner’s Safety Lamp. Diesel—Internal Combustion engine
(Diesel engine). Edison—First electric bulb and gramophone.
Fick—Law of Diffusion—Fick’s Law. Frank Whittle—Jet propulsion.
Guttenburg—Art of Printing. Hoe—Rotary Printing Press. James
Watt—Steam engine (patented in 1769). Landstrom, J.E.—Safety
Matches. Mauser—Magazine of rifle. Mercator—Celestial and a
terrestrial globe. Puckle, James—Machine gun Watt, Robert
Watson—Radar. W. & O. Wright (Wright Brothers)—Aeroplane (1903).