Iron weighs more after it rusts.
16
The average temperature at 40,000 feet above sea level is -60 F.
56
It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6
If you are locked in a completely sealed room, you will die of carbon dioxide poisoning first before you will die of oxygen deprivation.
117
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
There is a surgical implant being developed that will give you an orgasm at the touch of a button.
20
No matter how cold it gets, gasoline will not freeze.
107