The deepest hole ever made in the world (in Texas) is as deep as 20 empire state buildings but only 3 inches wide. See more

A rat can last longer without water than a camel. See more

Soccer is the most attended or watched sport in the world. See more

The microwave was invented after a researcher walked by a radar tube and a chocolate bar melted in his pocket. See more

Astronauts grow taller in space. See more

Hot water weighs less than cold water for a given volume. See more

365 different languages are spoken in Indonesia. See more

Lightning bolts can sometimes be hotter than the sun (about 50,000 ºF, 27,760 ºC). See more

The hairs on a polar bear are not white, but clear. They reflect light, so they appear white. See more