Your laptop might look like an inert, magic block of alluminium - but look at it in the right way, and it's actually a swirling vortex of forcefields and shapes that defy the imagination.
A project by Luke Sturgeon and Shamik Ray from the Copenhagen Institute of Interaction Design looked at the invisible electromagnetic force fields created by the components inside a laptop.
Using a light brush they were able to visualise these forcefields in a dramatic video, above.
They said of their project:
We chose to make Electromagnetic Fields (EMFs) that surround us visible. EMFs are particularly strong around devices with electrical and magnetic parts. Using long exposure photography and stop-frame animation we tried to ‘light-paint’ the EMF around objects like our laptops and an old tape-deck. Through a series of experiments in photographic and lighting techniques followed by hacking up an Android phone to act as an EMF indicator and then coding our own app in Processing we were able to visualize how these fields change over objects.