Teaching: AV Past and Present

It was always fun to see the "AV Memorial" on the way up to the department offices--glass cases full of cameras, projectors, sound equipment, and who knows what from the dawn of AV (audiovisual). At this point there were only a few more steps to go to the office, a chance to take a breather. The last 'wide spot' in the tower, however, so it was wise to tune your ears both up and down to hear whether hundreds of school children on field trips were approaching!