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MAGNETS
Iron and a few other things are attracted to magnets. Magnetism is also mentioned at a few other pages at this site:
The North Magnetic Pole of the Earth is actually a South Pole
Superconducting magnets are briefly mentioned at the cryogenics page.
Antigravity mentioned in magnetic terms on a page about dark energy
Gadolinium also sticks to magnets, but mercury does not, despite folklore to the contrary.
"Earth's gravity is like a magnet and is weaker the further away you go" ... Geostationary Orbit
Strong magnets found in Hard Disc Drives
Austenitic steel is mainly iron but it's rustproof and non-magnetic ... Material Science
Magnetron - valve found in microwave ovens
Used figuratively, eg. "I know OE is a malware magnet, but..." ... Preview Pane and Traffic Magnet
Video Tape / Recording of vision and sound on a magnetic tape - VCR
The idea that you can win on a slot machine by putting a big magnet on it