The Hall–Héroult process is the major industrial process for smelting aluminium. It involves dissolving aluminium oxide (alumina) (obtained most often from bauxite, aluminium’s chief ore, through the Bayer process) in molten cryolite, and electrolyzing the molten salt bath, typically in a purpose-built cell.
invented by Ascanio Sobrero
Nitroglycerin (NG), also known as trinitroglycerin (TNG), nitro, glyceryl…
invented by Edwin Budding
A lawn mower (also known as a mower, grass cutter or lawnmower) is a machine…
invented by Clément Ader
“Eole” redirects here. For the racehorse, see Eole (horse) .The…
invented by Elisha Otis
An elevator (North American English)[1] or lift (Commonwealth English)[2] is a…
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