Silicon is a chemical element with the symbol Si and atomic number 14. It is a hard, brittle crystalline solid with a blue-grey metallic lustre, and is a tetravalent metalloid and semiconductor.It is a member of group 14 in the periodic table: carbon is above it; and germanium, tin, lead, and flerovium are below it. It is relatively unreactive.
invented by Dawon Kahng Mohamed Atalla
The metal–oxide–semiconductor field-effect transistor (MOSFET, MOS-FET, or…
invented by James Dickson John Whinfield
Polyester is a category of polymers that contain the ester functional group in…
invented by Friedrich Bergius
The Bergius process is a method of production of liquid hydrocarbons for use as…
invented by Allan Kardec
Named after 10th-century Denmark king Harald “Bluetooth” Gormsson
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