The sound you hear when you crack your knuckles is actually the sound of nitrogen gas bubbles bursting.

Women blink twice as much as men.

Alain Bernard, of France, holds the world record for swimming the 100 meter freestyle, on 3/22/08 in 47.50 seconds.

All polar bears are left handed.

Pearls melt in vinegar.

Venus is the only planet that rotates clockwise.

The Titanic was the first ship to use the SOS signal.

You burn more calories sleeping than watching TV.

February 1865 was the only month with no full moon.

A dollar in 1950 will buy only 12 cents worth of goods today, 88% less than before.

Subaru’s name and company logo are influenced by the star cluster Pleiades.

The Hudson Bay Co. was the first Corporation in North America.

The name Amtrak is the blending of the words "American" and "Track". The railroad's official name is the National Railroad Passenger Corporation.

Human's have only about 5 million scent receptors in our noses, while the average grown dog has 220 million!

A group of geese on the ground is a gaggle. A group of geese in the air is a skein.

Bolts of lightning can shoot out of an erupting volcano.

The 22 smallest U.S. states could all fit inside Alaska.

Hawaii is moving about three inches closer to Japan every year.

A stack of a billion dollar bills weighs more than 15 army tanks.

A slinky could stretch from a sixth floor window to the ground.

No word in the English language rhymes with month, orange, silver, or purple.

A cat has 32 muscles in each ear.

A snail can sleep for three years.

Almonds are a member of the peach family.

A bowling pin need only tilt 7.5 degrees in order to fall down.

Dracula is the most filmed book of all time.

Yensid (Disney backwards) is the name of the sorcerer in Disney’s Fantasia.