Nearly 50% of the world's scientists are assigned to military projects.
71
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
Scientists aren't sure what color dinosaurs were.
312
The smell of freshly cut grass is actually a plant distress call.
31
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
Columbia University has developed an artificial tree that passively soaks up carbon dioxide from the air using "leaves" that are 1,000 times more efficient than true leaves that use photosynthesis.
15
