Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
One third of the electricity produced on earth is used to power electric light bulbs!
75
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
Cold water weighs more than hot water.
93
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155
At 15 years old, Jack Andraka invented a method of diagnosing pancreatic cancer, thus helping to save the lives of millions of people around the world. It is 168 times faster, 26,000 times cheaper, 400 times more sensitive, and has a 99% success rate.
15