Inventors World History Stephanie Kwolek: Inventor of Kevlar Anonim Jumat, 08 Januari 2016 Stephanie Kwolek: Inventor of Kevlar Sometimes when a scientist makes a discovery, its nature and usefulness are not immediately clear. T...
Inventors World History Guglielmo Marconi: Inventor of Radio (1874-1937) Anonim Senin, 04 April 2011 Guglielmo Marconi: Inventor of Radio (1874-1937) Most people think of radio as something they listen to at home or in the car, but the u...