Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
Hot water can freeze faster than cold water.
181
If you blowtorch Pepto-Bismol, you would get a hunk of metal.
114
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
42
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
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18