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
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
Scientists have developed a microparticle filled with oxygen that can be injected into the blood stream, enabling us to live without breathing.
21
One cubic foot of gold weighs more than 1,200 pounds!
78
Sound at the right vibration can bore holes through a solid object.
134
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Your brain is 80% water.
525
One 75-watt bulb gives more light than three 25-watt bulbs.
57