One barrel of petroleum holds 42 gallons.
20
Sound travels fifteen times faster through steel than through air.
134
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
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
Brass doorknobs automatically disinfect themselves in about 8 hours.
18