On: Invisible Electrostatic Wall at 3M plant (1996)

[zombot]

Van de Graaff

https://en.wikipedia.org/wiki/Van_de_Graaff_generator

[julian_t → zombot]

The Daresbury Laboratory in the UK had a giant Van de Graaff generator housed in a high concrete tower. I remember staying on site and waking up in the middle of the night with a really creepy feeling that turned out to be caused by that thing operating.

[rjsw → julian_t]

The tower is empty now, there is a good view from the top floor though.