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
Oak trees produce 2,200 acorns in a season, but each acorn only has a 1 in 10,000 chance of becoming an oak tree.
304
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
Aluminum used to be more valuable than gold!
84
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
MIT has developed a camera that captures the speed of light at a trillion frames per second.
20
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5