vacuum

The dad who provided handy instructional videos on the lights, the dishwasher, and the toilet paper roll (and whose teenage daughter responded in kind) is back. 

Warning WIN does not condone the use of home appliances to put out shallow fires. Or any fires. Just don't do it, is what I'm trying to say, I guess.

Members of the IBR Algorithm Group and Braunschweig University of Technology mounted LED lights on a batch of Roomba floor-cleaning robots and let them go to town in an empty room, taking long-exposure camera shots of the guys in action. The resulting light show is pretty cool, wouldn't you say?