O4-21: TRAVELING LIGHT ILLUSION

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11 years 11 months ago #1186 by zzfixk21
O4-21: TRAVELING LIGHT ILLUSION was created by zzfixk21


ID Code: O4-21
Purpose: Classic travelling light illusion.
Description: When the disc with a spiral groove rotates in front of a clear long filament bulb at about one revolution per second, the light rises slowly, then quickly returns to the center and rises again. When the disc is stopped the light and spiral appear to fall toward the center.
Availability: Available

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