This 3" diameter Plasma Orb is totally portable and affordable. It gives off beautiful eerie purple red tendrils of light. Great for a child's fertile mine or even an adult's desk day-dreams. Silver base and clear glass dome. Requires 4 AA batteries not included.
Some Fun history and facts:
Plasma lamps (also variously "plasma globes", "plasma balls", "plasma domes", "plasma spheres", or "plasma orbs") are which were most popular in the. The plasma lamp was "discovered" in 1904 by after his experimentation with high frequency currents in an evacuated glass tube for the purpose of studying high voltage phenomena. Tesla called this invention an Inert Gas Discharge Tube.
The popular product sold throughout the world today was invented by the artist, while an undergraduate student at MIT. Later he developed it into the now ubiquitous product while he was an Artist in Residence at the Exploratorium science museum. The technology needed to carefully formulate gas mixtures used in today's plasma spheres, primarily combinations of high purity rare gases, was not available to Tesla. These gas mixtures, glass shapes and integrated circuit driven electronics used to create the vivid colors, range of motions and complex patterns seen in today's Plasma Spheres were all developed and patented by Bill Parker in the 1980's and 1990's. The lamps typically contain,and/or, though a number of other gases can be used as well. Plasma lamps are available in different shapes, including spheres and cylinders.
Although there are many variations, a plasma lamp is usually a clear glass orb, filled with a mixture of various gases at low pressure, and driven by high frequency at (approx. 35kHz, 2-5kV), generated by a. A much smaller orb in its centre serves as an. Beams or snakes of "light" (actually in gas) extend from the inner electrode to the outer glass container, giving an appearance similar to multiple constant beams of colored lightning (see example 1 and example 2). The beams first follow the electric field lines of the, but move up due to.