We all know that WiFi connects us to the internet and each other through our phones, computers and tablets.

We live and work every day with digital technologies and the electromagnetic signals that are transmitted to and from our devices, but have you ever stopped to wonder what it might actually look like?

Designer Luis Hernan does, and it's that curiosity that lead him to create these incredible/haunting images of invisible WiFi signals.

Hernan uses an Android app to display WiFi signal strength in a variety of colors. Kirlian Device mobile translates the strength of your WiFi signal into a color. Red means that you have a strong signal, while Blue means a weak one.

As Hernan moved his phone around the spaces, his long exposure camera captured the changing signal colors. Each image is a ghostly illustration of the invisible electromagnetic signals passing through our atmosphere.

Learn more about the project by visiting his website here.

[h/t Laughing Squid]