The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
For every gallon of sea water, you get more than a quarter pound of salt.
45
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
One third of the electricity produced on earth is used to power electric light bulbs!
75
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
Scientists are now able to grow 'beating' heart tissue in a lab!
162
Neanderthal man had a brain capacity 100cc larger than modern man's.
50