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Plasma Globes


A plasma globe- also sometimes called as a plasma ball, lamp or sphere- 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. When you touch the plasma globe, you affect the high-frequency electrical field. Thus, sparks flow into your hand.