Ice isn't slippery. What makes people and things slip on ice is water. A thin layer of ice melts when pressure is applied to it and it is this wet layer on top of the ice that is slippery.
153
A pipe 2 feet in diameter will allow four times more fluid to pass through it than a pipe 1 foot in diameter.
20
If you're one in a million, there are about 7,234 people just like you.
31
A quarter has 119 grooves on its edge, a dime has one less groove!
34
If you chew gum when you study a subject and then chew the same flavor when you take the test, it will help you remember!
34
Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
14
There are more than 10 million bricks in the Empire State Building!
75
Babies start dreaming even before they're born.
134