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I believe lasers should be treated like firearms—know the target and what is beyond it, don't point it anything you don't want destroyed, no screwing around with safety protocols ("I'll be okay without safety glasses this one time"), etc. So I always wear safety glasses rated for the color and...

I just picked up a visual fault locator (VFL) for fiber optic work, and I have some questions about the device. I realize the unit is meant to attach to the end of a fiber via its "universal" connector. However, when aimed at a surface a meter away, it produces a "rosette" pattern about 30cm...

I did a search on "popcorn," but it didn't turn up any relevant results. I've seen lots of laser videos where balloons are popped, electrical tape is cut, and puddles of liquid fuels are ignited. What I'm curious to know is if anyone has managed to pop a kernel of popcorn with a laser? I...

Greetings. I'm an armchair science fan who grew up in a house with 5000 books in it—many of them sci-fi. I never had any formal training in electronics, but picked up enough through reading and tinkering to work as a repair and maintenance tech in TV studios. I currently install various kinds of...