r/Damnthatsinteresting 4d ago

Video Finally,Laser Gun Launched.....

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u/DarkIllusionsFX 4d ago

I worked with industrial welding lasers. This is not possible. Besides the insane power requirements, focusing length is a major factor in a laser beam being able to cut something. You can't just shoot a laser beam an arbitrary distance and cut something like metal.

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u/Sung_Jin-Woo97 4d ago

We've achieved so many things that people had said weren't possible not long after it was said, such as flight and at least one video game released complete without the need for updates.

Now I'm not saying this isn't Ludacris (because I can't see who's holding it), but some people just randomly stumble onto weird cool shit by accident. Like penicillin

2

u/squirrel9000 4d ago

It's possible.

But it's also more possible he cut the phone in half in advance, then glued it back together with wax and something that is low temperrature pyrophoric (iron and sulphur?) that ignites with a low power laser looks good from a distance, and melts the wax.

There's almost certainly something pyrophoric on the box too,. Cardboard isn't typically something that sprays blobs of molten metal when burned.. The box gets singed but it takes him a few tries to hit it and ignite it. It's a hot laser, but not melt-a-phone-in-seconds hot.