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
Scientists aren't sure what color dinosaurs were.
312
Hot water can freeze faster than cold water.
181
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
In the 60s, a scientist gave LSD to dolphins in an attempt to teach them English.
17
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75