does some one actually come by to check if the bell is still working or is it just gonna be that 1 day some ones gonna notice its not working, and have no idea how long its been out of power for,(reply>), +Sally Le Page +,(reply>), +,(reply>)," it would not be a bad idea to setup a web-camera streaming to internet. Many similar long-lasting devices/experiments already have this. For example the pitch drop experiment: <a href=""https://en.wikipedia.org/wiki/Pitch_drop_experiment"">https://en.wikipedia.org/wiki/Pitch_drop_experiment</a>",(reply>), Great question - I don't actually know. It's not audible at all, but it is in a busy corridor so perhaps someone will get curious and have a look. But many people in the department just walk past it without knowing how incredibly old it is!