Indoor pollution is 10 times more toxic than outdoor pollution.
62
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
If the chemical sodium is dropped into water it will immediately and violently explode.
67
One ragweed plant can release as many as one billion grains of pollen!
51
The average home creates more pollution than does the average car.
33
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
Sound at the right vibration can bore holes through a solid object.
134
In the 60s, a scientist gave LSD to dolphins in an attempt to teach them English.
17