The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
21
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
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
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
The bark of an older redwood tree is fireproof.
65
Each day, up to 150 species of life become extinct.
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