Category: Fun Facts
Mirrors
The moon actually has mirrors on it. They were left there by astronauts who wanted to bounce laser beams off them, so that the distance to the moon can be measured.
Sealed room
If you are locked in a completely sealed room, you will die of carbon dioxide poisoning first before you will die of oxygen deprivation.
5
If you take any number, double it, add 10, divide by 2, and subtract your original number, the answer will always be 5.
Tennessee
In 1784 the U.S. had a state called Franklin, named after Benjamin Franklin. But four years later, it was incorporated into Tennessee.