Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
German chemists made a replica of a trophy the size of one molecule.
68
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
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 cubic foot of gold weighs more than 1,200 pounds!
78
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
Your brain is 80% water.
525
The smell of freshly cut grass is actually a plant distress call.
31