One barrel of petroleum holds 42 gallons.
20
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
Scientists are now able to grow 'beating' heart tissue in a lab!
162
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
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
In the 60s, a scientist gave LSD to dolphins in an attempt to teach them English.
17
The bark of an older redwood tree is fireproof.
65
In zero gravity, a candle's flame is round and blue.
16