One barrel of petroleum holds 42 gallons.
20
Most dust particles in your house are made from dead skin!
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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
The use of emoticons affects our corresponding brain areas and can actually trigger emotions.
21
The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17
During photosynthesis, plants emit light humans can’t see, but NASA can see that light from space - and they've even made maps of it!
21
Termites are being researched as a possible renewable energy source as they can produce up to 2 litres of hydrogen from ingesting a single sheet of paper, making them one of the planet’s most efficient bioreactors.
24
A cubic yard of air weighs about 2 pounds at sea level.
31