Secret images in old masterpieces

Hockney's art does away with the canvas

Graffiti without the tears

Can you believe your eyes in the digital world?

Avatar 3D film created by special effects technology

Avatar's special effects artists

Avatar 3D film employs cutting edge visual effects

How Avatar's effects were generated

James Cameron on making Avatar

Making it big in the movies

Mona Lisa gets animated

Digital tech brings life to 3D cinema

The future in 3D

How to make money from your photos

Using lights to turn buildings in Derby into art works

'I am sitting in a room'

A video clip was uploaded to YouTube, ripped off and then uploaded again and again. This process was repeated to demonstrate the effects of repeated file compression. (requires YouTube)