If you are locked in a completely sealed room, you will die of carbon dioxide poisoning first before you will die of oxygen deprivation.
117
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
The inventor of the Super Soaker squirt gun was a NASA Scientist who also helped develop the Stealth Bomber and the Galileo mission to Jupiter.
7
One ragweed plant can release as many as one billion grains of pollen!
51
Sound travels about 4 times faster in water than in air.
408
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9