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Glow Disk

Science Caravan · Optics

Dimensions: Transport dimensions: 540×440×640mm, Display dimensions: 540×440×1450mm. Composition: Consists of an ABS plastic molded cabinet, ABS plastic molded pedestal, ABS milky white plastic molded operating surface with color silk-screened flip-up instruction board, delay circuit, leakage protector, glow disc, etc. Operation: Touch and move your hand on the disc surface to observe changes in the glow. Function Overview: Participants gently touch or move their hands on the surface of the disc to attract or guide the movement of the glow within the disc, exploring the phenomenon of glow discharge. Scientific Principle: A high-frequency high-voltage electrode is installed at the center of the glow disc. The disc is filled with small bubbles approximately 2-3mm in diameter containing low-pressure inert gas. When the high-voltage electrode is energized, due to the strong electric field and the rarefied gas in the small bubbles, a beautiful glow is excited. During the activity, participants gently touch or move their hands on the surface of the disc to attract or guide the movement of the glow within the disc, exploring the phenomenon of glow discharge.

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