Pumice is the only rock that floats on water.
14
The inventor of the Super Soaker squirt gun was a NASA Scientist who also helped develop the Stealth Bomber and the Galileo mission to Jupiter.
7
For every gallon of sea water, you get more than a quarter pound of salt.
45
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
Scientists are now able to grow 'beating' heart tissue in a lab!
162
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
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57