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The coil wasn't plunged in to any external power source i guess!
Because i know very well that if you approach any fluorescent light lamp to close to an RF transmitter it glows due to induction.

No from what I could tell. The exhibition even had a 4-minute show with the coil, the guide made it "play music" which was really fascinating, but the video was long (2mins) and my internet connection too slow to upload it.
We had a demonstration of neon lamps too.

Ok... i have to visit it.. :)

Definitely!