Yeah, yeah, we all know there’s weird Electomagnetic Fields (EMF) emanating from your speakers, and other tech you use on a daily basis, but have you ever seen what they look like?

Luke Sturgeon and his team managed to create a neat little video that, “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.”

It’s worth checking out. Also, it’s worth keeping in mind that these are “visualizations” and not the actual EMF fields themselves.