‘Light-painting’ is a photographic technique which uses a source of light to draw an image in the air whilst taking a long-exposure photograph. By capturing the light from a moving source, you're able to create an image which shows its motion over time. In the 1940's, photographer Gjon Mili attached lights to the boots of ice-skaters to demonstrate the movement of their bodies and they gracefully glide around the ice. This video demonstrates a recreation of those photographs, using modern photographic techniques. To find out how to make your own light-paintings, check out the video here & tweet any pictures you take to the At-Bristol Science Centre.