One 75-watt bulb gives more light than three 25-watt bulbs.
57
A ball of glass will bounce higher than a ball made of rubber.
73
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Your brain is 80% water.
525
In the 60s, a scientist gave LSD to dolphins in an attempt to teach them English.
17
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
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75