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
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
A ball of glass will bounce higher than a ball made of rubber.
73
One ragweed plant can release as many as one billion grains of pollen!
51
The earth is approx. 6,588,000,000,000,000,000 tons.
175
MIT has developed a camera that captures the speed of light at a trillion frames per second.
20
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199