A 'jiffy' is an actual unit of time for 1/100th of a second!
66
Iron weighs more after it rusts.
68
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
42
One third of the electricity produced on earth is used to power electric light bulbs!
75
A cesium atom in an atomic clock beats over nine billion times a second.
43