-It takes glass one million years to decompose, which means it never wears out and can be recycled an infinite amount of times!

-Gold is the only metal that doesn’t rust, even if it’s buried in the ground for thousands of years.

-Your tongue is the only muscle in your body that is attached at only one end.

-If you stop getting thirsty, you need to drink more water. When a human body is dehydrated, its thirst mechanism shuts off.

-Each year 2,000,000 smokers either quit smoking or die of tobacco-related diseases.

-Zero is the only number that cannot be represented by Roman numerals.

-Kites were used in the American Civil War to deliver letters and newspapers.

-The song, Auld Lang Syne, is sung at the stroke of midnight in almost every English-speaking country in the world to bring in the new year.

-Drinking water after eating reduces the acid in your mouth by 61 percent.

-Peanut oil is used for cooking in submarines because it doesn’t smoke unless it’s heated above 450F.

-The roar that we hear when we place a seashell next to our ear is not the ocean, but rather the sound of blood surging through the veins in the ear.

-Nine out of every 10 living things live in the ocean.

-The banana cannot reproduce itself. It can be propagated only by the hand of man.

-Airports at higher altitudes require a longer airstrip due to lower air density.

-The University of Alaska spans four time zones.

-The tooth is the only part of the human body that cannot heal itself.

-In ancient Greece , tossing an apple to a girl was a traditional proposal of marriage. Catching it meant she accepted.

-Warner Communications paid $28 million for the copyright to the song Happy Birthday.

-Intelligent people have more zinc and copper in their hair.

-A comet’s tail always points away from the sun.

-The Swine Flu vaccine in 1976 caused more death and illness than the disease it was intended to prevent.

-Caffeine increases the power of aspirin and other painkillers, that is why it is found in some medicines.

-The military salute is a motion that evolved from medieval times, when knights in armor raised their visors to reveal their identity.

-If you get into the bottom of a well or a tall chimney and look up, you can see stars, even in the middle of the day.

-When a person dies, hearing is the last sense to go. The first sense lost is sight.

-In ancient times strangers shook hands to show that they were unarmed.

-Strawberries are the only fruits whose seeds grow on the outside.

-Avocados have the highest calories of any fruit at 167 calories per hundred grams.

-The moon moves about two inches away from the Earth each year.

-The Earth gets 100 tons heavier every day due to falling space dust.

-Due to earth’s gravity it is impossible for mountains to be higher than 15,000 meters.

-Mickey Mouse is known as “Topolino” in Italy .

-Soldiers do not march in step when going across bridges because they could set up a vibration which could be sufficient to knock the bridge down.

-Everything weighs one percent less at the equator.

-For every extra kilogram carried on a space flight, 530 kg of excess fuel are needed at lift-off.

-The letter J does not appear anywhere on the periodic table of the elements.