Michael Skirpan has developed a system of 400 LEDs that mimic the behaviour of fireflies. Run off a Raspberry Pi, the system is modelled on the dynamics of firefly synchronisation. The LEDs are randomly started up at a random blinking frequency and slowly they ‘learn’ from one another until they become synchronised. How this is achieved is a bit of a mystery, because there’s not much detail on the project. Pretty, though!