Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0
One cubic foot of gold weighs more than 1,200 pounds!
78
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
If you are locked in a completely sealed room, you will die of carbon dioxide poisoning first before you will die of oxygen deprivation.
117
Some toothpastes and deodorants contain the same chemicals found in antifreeze.
38
If you blowtorch Pepto-Bismol, you would get a hunk of metal.
114
Hot water can freeze faster than cold water.
181