Your brain is 80% water.
525
One ragweed plant can release as many as one billion grains of pollen!
51
Aluminum used to be more valuable than gold!
84
The average home creates more pollution than does the average car.
33
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
Diamonds can be shattered with a hammer.
-104
Nearly 50% of the world's scientists are assigned to military projects.
71