Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
Your brain is 80% water.
525
One third of the electricity produced on earth is used to power electric light bulbs!
75
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
The earth is approx. 6,588,000,000,000,000,000 tons.
175
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
Aluminum used to be more valuable than gold!
84