The bit at the bot­tom is a marked-off area which I totally did not go into in order to invest­ig­ate how this was con­struc­ted. And I cer­tainly wasn’t tak­ing any pho­to­graphs. Phew.

Liv­ing with someone who makes LEDs do things for fun, I wasn’t overly blown away by this, but the raw data, pas­ted on the wall, was much more interesting.