A contagious laughter that lasted six months-Amazing Facts

The earliest British expeditions tackling Everest wore tweed jackets, woolen underwear, and leather boots.
During World War II, twice as many fighter pilots were killed during training than combat .
In 1962 an outbreak of contagious laughter in Tanganyika lasted for six months and caused schools to be closed
A nautical mile measures 6,080 feet while a land or statute mile is 5,280 feet
No one can drown in the Dead Sea. It is 25 percent salt, which makes the water very heavy

Credit goes to subodh nagwekar

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