Brass doorknobs automatically disinfect themselves in about 8 hours.
18
Iron weighs more after it rusts.
16
If two pieces of metal touch in space, they become permanently stuck together.
808
A lump of pure gold the size of a matchbox can be flattened into a sheet the size of a tennis court.
140
Pirates believed that piercing the ears with such precious metals as silver and gold improved one's eyesight.
131
If you blowtorch Pepto-Bismol, you would get a hunk of metal.
114
It 'snows' metal on Venus.
13
If you get water flowing fast enough, it can cut metal.
354