�
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 .