Do You Know?

• People who ride on roller coasters have a higher chance of having a blood clot in the brain.
• People with blue eyes see better in dark.
• Money isn’t made out of paper, it is made out of cotton.
• A tiny amount of liquor on a scorpion will make it go mad instantly and sting itself to death. 
• Chewing gum while peeling onions will keep you from crying.
• A huge underground river runs underneath the Nile, with six times more water than the river above.
• The USA uses 29% of the world's petrol and 33% of the world's electricity.
• Wearing headphones for just an hour will increase the bacteria in your ear By 700 times.
• The animal responsible for the most human deaths world-wide is the mosquito.
• Right handed people live, on average, nine years longer than left-handed people.
• We exercise at least 30 muscles when we smile.
• Our nose is our personal air-conditioning system: it warms cold air, cools hot air and filters impurities.
• Our brain is more complex than the most powerful computer and has over 100 billion nerve cells.
• When a person dies, hearing is usually the first sense to go.
• There is a great mushroom in Oregon that is 2,400 years old. It Covers 3.4 square miles of land and is still growing.
• German Shepherds bite humans more than any other breed of dog.
• The pupil of the eye expands as much as 45 percent when a person looks at something pleasing. 
• Men's shirts have the buttons on the right, but women's shirts have the buttons on the left.
• The reason honey is so easy to digest is that it's already been digested by a bee.
• It cost 7 million dollars to build the Titanic and 200 million to make a film about it.
• The sound you hear when you crack your knuckles is actually the sound of nitrogen gas bubbles bursting.
• The only part of the body that has no blood supply is the cornea in the eye. It takes in oxygen directly from the air.