Glass takes 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.
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.
Drinking water after eating reduces the acid in your mouth by 61 percent. Drinking a glass of water before you eat may help digestion and curb appetite.
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.
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 and cashews 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.
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