The bark of an older redwood tree is fireproof.
65
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
If the chemical sodium is dropped into water it will immediately and violently explode.
67
The sun is 330,330 times larger than the earth.
75
Cold water weighs more than hot water.
93
There is a surgical implant being developed that will give you an orgasm at the touch of a button.
20
There are more than 270 people cryogenically frozen in the hope that one day the technology will exist that can revive them and extend their lives.
13