“Plasma balls” (also called: plasma globe, lamp, dome, sphere, tube, or orb) consist of a clear glass container filled with a mixture of various noble gases with a high-voltage electrode in the center of the container. When voltage is applied, a plasma is formed within the container. Plasma filaments (appearing as electric sparks) extend from the inner electrode to the outer glass insulator.
A video of plasma ball demonstrations may be seen at:
Principles of plasma physics apply to innumerable practical things ranging from fluorescent light bulbs to computer and TV screens. Facilitate students exploring further avenues of plasma technology Type into your browser: plasma technology videos/ Please post questions.