Chuck Moore, a consultant for the city, described one fire station’s Rube Goldberg machine in September during testimony in Detroit’s bankruptcy trial: When an emergency alert comes in, a fax machine is triggered. This shoots out a piece of paper, which knocks over a soda can full of change, notifying those at the station of the situation. At another station, a fax comes in and bumps a door hinge, which pulls a wire and rings a doorbell.