There are 100 million internet users in China. Some of the sites they can't access are BBC news, Amnesty International and Dalailama.com. See more

In 2006, there were 398 million mobile (or cell) phones in China. See more

In 10 minutes, a hurricane releases more energy than all of the world's nuclear weapons combined. See more

It took approximately 2.5 million blocks to build the Pyramid of Giza, which is one of the Great Pyramids. See more

Thomas Edison designed a helicopter that would work with gunpowder. It ended up blowing up and also blew up his factory. See more

The Netherlands has built 800 miles of massive dikes and sea walls to hold back the sea. See more

If you fart constantly for 6 years and 9 months, enough gas is produced to create the energy of an atomic bomb. See more

Leonardo Da Vinci invented the scissors. See more

The average person falls asleep in seven minutes. See more