Most dust particles in your house are made from dead skin!
67
Indoor pollution is 10 times more toxic than outdoor pollution.
62
If the chemical sodium is dropped into water it will immediately and violently explode.
67
One cubic foot of gold weighs more than 1,200 pounds!
78
Columbia University has developed an artificial tree that passively soaks up carbon dioxide from the air using "leaves" that are 1,000 times more efficient than true leaves that use photosynthesis.
15
The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
21
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65