http://en.wikipedia.org/wiki/Air_purifier
http://en.wikipedia.org/wiki/Ferrofluid
http://en.wikipedia.org/wiki/Ion_thruster
http://en.wikipedia.org/wiki/Milling_(machining)
Treatment of titanium
Lowering CO^2 emission
http://en.wikipedia.org/wiki/Fuel_cell
http://en.wikipedia.org/wiki/Tor_missile_system
Electro erosion
http://en.wikipedia.org/wiki/Magnetic_core
E.g. http://en.wikipedia.org/wiki/Curcuminoid
http://en.wikipedia.org/wiki/Ceramic
http://en.wikipedia.org/wiki/Permeability_(electromagnetism)
Petroleum pollution
Water depollution
Cellulose cloths
Transformation mould
http://en.wikipedia.org/wiki/Colloid
Ambient lighting
http://en.wikipedia.org/wiki/Solar_furnace
