A single speck of dust is half way in size between a subatomic particle and the Earth.
15
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 earth is approx. 6,588,000,000,000,000,000 tons.
175
One barrel of petroleum holds 42 gallons.
20
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
A 'jiffy' is an actual unit of time for 1/100th of a second!
66
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