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this LEP flashlight uses a blue laser to create a narrow beam of white light | The Backyard Scientist
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long range laser blaster, work in progress! | The Backyard Scientist
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I Made A POWERFUL Laser Blaster! | The Backyard Scientist
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Backyard Scientist Tests Laser Chainsaw That Can Remove Ink from Currency and Cut Down Trees
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check out my new invention | The Backyard Scientist
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