A [b]plasma globe[/b] or [b]plasma lamp[/b] (also called [[plasma]] ball, dome, sphere, tube or orb, depending on shape) is (usually) a clear glass sphere filled with a mixture of various noble gases with a high-voltage electrode in the center of the sphere. Plasma filaments extend from the inner electrode to the outer glass insulator, giving the appearance of multiple constant beams of colored [[light]]. Plasma globes were most popular as novelty items in the 1980s.

h4. External links

* "Wikipedia: Plasma globe":https://en.wikipedia.org/wiki/Plasma_globe
plasma globe