The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
One barrel of petroleum holds 42 gallons.
20
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Scientists aren't sure what color dinosaurs were.
312
MIT has developed a camera that captures the speed of light at a trillion frames per second.
20
The weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55