Le 2021-06-08 à 17 h 05, David Kastrup a écrit :
Puts me back when a physics professor in a lecture did
not get a
volunteer for entering a Faraday cage connected to a band generator
producing impressive sparks and then went in himself.
"Prof Jim Al-Khalili survives nearly a million volts of electricity!"
https://www.bbc.co.uk/programmes/p00l30l1
That was at a time when Lavalier microphones were not
yet customarily
wireless...
Static electricity, sure, and the assistant stopped the band generator
almost immediately again. It didn't help getting volunteers...
Professors have special powers: they know...
Marc