http://en.wikipedia.org/wiki/Magnet
http://en.wikipedia.org/wiki/Honing_(metalworking)
http://en.wikipedia.org/wiki/Pliers
Optical sensor
Magnetic field detection
Magnetic transistor
Vascular prosthesis
Fireproof leather
Sheep skin tanning
Hide tanning
Gangway
http://en.wikipedia.org/wiki/Thermoelectric_effect
Medium voltage
Laser
Transformer
http://en.wikipedia.org/wiki/Deuterium-depleted_water
http://en.wikipedia.org/wiki/Capacitor
Gas turbine
Anti-corrosion pipe
