In article , Iain
wrote:

This same instructor, a serious and rather quiet chap, had a wonderful
sense of humour. He once told an assistant in the lift, who was carrying
a box containing a 2" 24-track tape that the lift compartment, made
from sheet steel, lacked a Faraday cage, so he (the assistant) should
keep turning in an anti-clockwise direction all the time the lift was
in motion.

Some months after this, the technical director mentioned that he was
taking some visitors on a studio tour, and shared a lift with a very
courteous young fellow carry a multitrack tape, who kept turning in
circles in front of them.

I'm now wondering if he was assuming the lift was rising/falling at a
relativistic velocity. That might have made a Faraday cage relevant to
magnetic field. But I have my doubts anyone on Earth would then get a
chance to check the tapes later on. 8-]

Jim

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