

We know what Wi-Fi does - we're just not exactly sure how it does it.
A clever box gets plugged into the phone line, some tech voodoo occurs and our smartphones are filled with cat videos. That's about as much as we understand it.
Newcastle University doctoral researcher Luis Hernan has been attempting to bring the world of Wi-Fi to life with his ongoing project, Digital Ethereal, bringing wireless signals to life with artistic photography.
Art and Science
Hernan's project looks to access the 'invisible infrastructure' that underpins our modern world of technology - with these images highlighting the complex wireless world around us.
Painting with LEDs
Hernan has developed this small box - the Kirlian Device - to translate Wi-Fi signals into light.
A Wi-Fi receiver in the device translates the strength of the signal into a corresponding colour (blue for low intensity, red for high intensity). Using long exposure photography, Hernan is then able to "paint" the signals by sweeping the Kirlian Device through an area of space.
Ghostly signals
These "Spirit Photos" are more a depiction of the varying quality of Wi-Fi signals than a true representation of what wireless waves look like - but they're an artful way of revealing the complexity of what's keeping your internet connection flowing.
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(Images: Digital Ethereal by Luis Hernan)

As Content Director of Shortlist, Marc likes nothing more than to compile endless lists of an evening by candlelight. He started out life as a movie writer for numerous (now defunct) magazines and soon found himself online - editing a gaggle of gadget sites, including TechRadar, Digital Camera World and Tom's Guide UK. At Shortlist you'll find him mostly writing about movies and tech, so no change there then.