Brass doorknobs automatically disinfect themselves in about 8 hours.
18
Pure water (H2O) does not conduct electricity on its own.
46
Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
42
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
For every gallon of sea water, you get more than a quarter pound of salt.
45
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
Each day, up to 150 species of life become extinct.
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