Plasma Ball

Budding electrical engineers and physicists alike will be astounded at the electrifying visual display of this plasma-centered glass ball that contains a supercharged ionized gas that can be found in every star. An alternating high-voltage current radiates from a Tesla coil to the inner surface of the sphere, causing escaping electrons that result in the inert gas lighting up. A sound-activated mode makes the plasma arcs dance to the beat of a song.