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.
