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
It is impossible to hum if your nose is plugged.
366
Wearing red increases attraction.
30
A pipe 2 feet in diameter will allow four times more fluid to pass through it than a pipe 1 foot in diameter.
20
More than 10% of the world's salt is used to de-ice American roads.
54
In 1997, a survey reported that 12% of Americans think that Joan of Arc was Noah's wife.
48
Those things you see in your eyes when you stare into space are called Mouches Voltanes, which are also broadly referenced to as Floaters.
9