Most dust particles in your house come from dead skin.
48
For every gallon of sea water, you get more than a quarter pound of salt.
45
A cesium atom in an atomic clock beats over nine billion times a second.
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One ragweed plant can release as many as one billion grains of pollen!
51
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
The gas that gives rotten eggs their distinctive foul smell may slow ageing and block damaging chemical reactions inside cells, according to scientists in China.
5
The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17
Brass doorknobs automatically disinfect themselves in about 8 hours.
18