Optical illusions occur when what the eyes see conflicts with what the brain expects.
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If the chemical sodium is dropped into water it will immediately and violently explode.
67
Scientists aren't sure what color dinosaurs were.
312
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
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
The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17
Scientists in Germany have developed a candy that doesn't cause cavities.
11
During photosynthesis, plants emit light humans can’t see, but NASA can see that light from space - and they've even made maps of it!
21