The cigarette lighter was invented before the match. See more

Like fingerprints, everyone's tongue print is different. See more

In a year, your heart can beat up to 40,000,000 times!. See more

It takes about 20 seconds for a red blood cell to circle the whole body. See more

You will have to walk 80 kilometers for your legs to equal the amount of exercise your eyes get daily. See more

It is impossible for a human to lick their elbow. See more

A teaspoon of neutron star material weighs about 110 million tons. See more

A boeing 747's wingspan is longer than the Wright brothers' first flight (120 feet/36 meters). See more

111,111,111 x 111,111,111 = 12,345,678,987,654,321. See more