Lightning strikes about 6,000 times per minute on this planet. See more

Every single "all a's" domain name, from a.com to aaa..aaa.com (63 a's) has been registered! See more

It takes about 20 seconds for a red blood cell to circle the whole body. See more

Electricity doesn't move through a wire but through a field around the wire. See more

Like fingerprints, everyone's tongue print is different. See more

Calculating DNA length for each person, it would stretch across the diameter of the solar system. See more

The cigarette lighter was invented before the match. See more

Human thigh bones are stronger than concrete. See more

A boeing 747's wingspan is longer than the Wright brothers' first flight (120 feet/36 meters). See more