The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
4.5 pounds of sunlight strike the Earth each day.
27
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Sound travels fifteen times faster through steel than through air.
134
The smell of freshly cut grass is actually a plant distress call.
31
According to studies, men change their minds two to three times more often than women.
72
Nearly 50% of the world's scientists are assigned to military projects.
71