I was there a couple of years ago and a bunch of kids were in and out of the JP banging the stick about to ne real purpose. When they had gone I sat in it and the next group of kids (and parents) started asking questions ("What you doing, Mister?") so I took a quarter of an hour explaining what the bits did. Went away and a lots less banging for half an hour or so. Suggested to the museum that with a bit of thought they could have a more useful and instructional exhibit. They thanked me but not sure anything positive has happened