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
If you counted 24 hours a day, it would take 31,688 years to reach one trillion!
44
If you get water flowing fast enough, it can cut metal.
354
In 1976, an underachieving Princeton junior undergraduate wrote a term paper detailing how to make a nuclear bomb. He got an "A", but never got his paper back because it was seized by the FBI.
16
The only king without a moustache in a deck of cards is the king of hearts.
63
It's impossible to sink in the Dead Sea without equipment!
72
In Georgia, there is an airtight room called the Crypt of Civilization that was sealed in 1940. It contains numerous artefacts documenting what life was like at the time of sealing, and is scheduled to be opened in the year 8113 to show people of the future exactly what life was like.
13
Sunflowers can be used to clean up radioactive waste.
17