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Results tagged with laser
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user 194753
Is the acronym Light Amplification by Stimulated Emission of Radiation. Can refer to Gas, electrical, or chemical lasers.
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answer
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Simple DIY laser alarm
Im begginer and currently Im trying to make DIY laser alarm (while laser is pointing at LDR sirene should remain silent and when laser is turned off, sirene should make sound). … in pitch of sound (Sirene is constantly on, but only increases its volume while laser is pointing at LDR). …
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