Most dust particles in your house are made from dead skin!
67
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
One cubic foot of gold weighs more than 1,200 pounds!
78
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
The gas that gives rotten eggs their distinctive foul smell may slow ageing and block damaging chemical reactions inside cells, according to scientists in China.
5
One barrel of petroleum holds 42 gallons.
20