Using long exposure photography to bring WiFi signals to life, Newcastle University student Luis Hernan, created a series of images featuring voluminous, glowing rainbowed forms, floating in mid-air. The project titled "Spirit Photographs—Wireless Spectre", is a performative and photographic exploration of Hertzian Space. The pictures result from describing the space through a performance with the Kirlian Device, which transforms signal strength in light colour (reds for high intensity, blues for low intensity).