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.
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 450 degrees F.
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.
(Thanks, Therese!)