A laser light show is possible to replicate with the diffraction grating effect. Different laser effects can be created using a variety of materials: small motors and diffraction grating pieces, and mirrors. It's possible to create searchlights, crystal balls, spring patterns, a Galvanometer effect, and a spider web. Watch this video circuitry tutorial series and learn how to replicate professional laser show techniques for recreational use at home, or as an accompaniment to music or any pseudo-psychedelic experience.
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