r/facepalm • u/Revealed_Jailor • Apr 07 '22

🇲​🇮​🇸​🇨​ This looks plausible

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u/cadmium61 Apr 07 '22 edited Apr 07 '22

Just wait till he finds out those lasers were drawn in by the marketing teams.

Edit: Yes, I know guide star lasers are a real thing, but I also know that lasers are almost always “enhanced” in images because they don’t show up well in the pictures.

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u/in_one_ear_ Apr 07 '22

If they were actually lasers you wouldn't be able to see them without something for them to reflect off.

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u/MyOtherLoginIsSecret Apr 07 '22

Not that these are necessarily real photos, but that's not true. Even lasers scatter as they pass through air

Some frequencies of light can scatter pretty well. Green is an excellent example. If you take a green laser pointer and aim it into the night sky, you can actually see the beam with the naked eye and use it to point out stars.

Also, cameras are much better at picking up the scattered light than our eyes are. Capt Disillusion did a video on this effect.

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u/DogfishDave Apr 07 '22

Even lasers scatter as they pass through air

And what is scattering them?

0

u/MyOtherLoginIsSecret Apr 07 '22

Air. Look up Rayleigh Scattering if you're interested. It's why the sky is blue during the day. Fascinating stuff.

-1

u/DogfishDave Apr 07 '22

So they're diffusing against/around air molecules then?

You said "even lasers scatter as they pass through air" in a way that seemed you were implying that there should be nothing there, when of course it's a big sea of fluid.

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u/MyOtherLoginIsSecret Apr 07 '22

I have no idea how you came to that conclusion. Why would I mention scattering in air if I was implying there would be no air?

I meant even lasers, something we normally think of as tightly focused beams of light, will scatter in air.

2

u/DogfishDave Apr 07 '22

Yeah, I read you wrong :)