This is one of two works shown at the London Biennale 2002.
A small motor on a slide moves up to the top of the slide, causes a receptionists bell to make a delicate ding, waits a couple of seconds and then goes down to the bottom. It waits at the bottom for a couple of seconds and then goes up to the top again. This is a continuous process. It takes about four minutes to complete the cycle.
The circuit is from the book.
The photograph on the left is a detail.