What I'm thinking of is not a plasma globe, although, like the globe, it too is intended primary for display. If I were to describe it, I remember it being made out of glass, maybe 1-2 feet in diameter, and nearly flat in thickness. Electric discharges from the center to the edge of the glass and looked a lot like lightning. I remember these devices being used in Star Trek The Next Generation used behind the heads of Borg drones. They used to be in Spencers too available for purchase.
- posted
4 years ago