Indoor pollution is 10 times more toxic than outdoor pollution.
62
The bark of an older redwood tree is fireproof.
65
Galalith is a type of plastic that can be made from milk. It is odourless, insoluble in water, biodegradable, anti-allergenic, antistatic, and virtually non-flammable.
1
Sound travels fifteen times faster through steel than through air.
134
One cubic foot of gold weighs more than 1,200 pounds!
78
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
Diamonds can be shattered with a hammer.
-104
The force of a suction cup is calculated using F=AP.
15