Tim Hunkin was a genius at making complicated concepts simple. I recall when DS was small, every school holiday (although, preferably for me, inset day - other schools were not also off and it was generally quieter) he'd want to go to the science museum and in those days there were lots of Tim Hunkin displays, which were fascinating for both of us.
I remember these shows being on TV and I'm glad YT has made them available again.
That French machine with NO safety guards and a second operator looked flamin' scary - maybe the Luddites who broke them up were really from the Health & Safety inspectorate