One third of the electricity produced on earth is used to power electric light bulbs!
75
Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
15
Pumice is the only rock that floats on water.
14
The force of a suction cup is calculated using F=AP.
15
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
Diamonds can be shattered with a hammer.
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Pure water (H2O) does not conduct electricity on its own.
46