Sound at the right vibration can bore holes through a solid object.
134
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
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
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
A single cup of gasoline, when ignited, has the same explosive power as five sticks of dynamite.
57
Cold water weighs more than hot water.
93
Balsa wood is classified as a hard wood!
41