Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Nearly 50% of the world's scientists are assigned to military projects.
71
For a high school science fair project, 17-year-old Michio Kaku built a particle accelerator in his parent's garage that was able to generate a magnetic field 20,000 times greater than the Earth's and produce collisions powerful enough to create antimatter.
34
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
German chemists made a replica of a trophy the size of one molecule.
68
The bark of an older redwood tree is fireproof.
65
For every gallon of sea water, you get more than a quarter pound of salt.
45