Nylon is made from coal and petroleum.
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One 75-watt bulb gives more light than three 25-watt bulbs.
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Hot water can freeze faster than cold water.
181
The only letter not appearing on the Periodic Table is the letter "J".
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The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
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
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.
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