A computer monitor contains 1.8 to 3.6 kg of lead, a heavy metal that damages the nervous system and poisons blood cell development.

In 2006, about one billion people used the internet, which encompassed 300 + million host computers.

The number of mobile telephone subscibers rose to one billion in 2001, nearly pulling even with the number of fixed line connections.

Japanese researchers are developing a method of drawing power from blood glucose. It could allow a person to pump out 100 W - enough to illuminate a light bulb.