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That's not how anything works, Part II (lemmy.world)
submitted 3 months ago by FlyingSquid@lemmy.world to c/outofcontextcomics@lemmy.world
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[-] FlyingSquid@lemmy.world 3 points 3 months ago

I wouldn't compare the brightness of a laser to a reflection of itself. That's the issue I'm seeing.

[-] ByteJunk@lemmy.world 1 points 3 months ago

Why not? There's a bunch of applications where that is a requirement.

The Lunar Laser Ranging experiments are a fun one, I think. Scientists shoot lasers at mirrors placed in the moon and measure the trip time of light to calculate the distance of the moon to the millimetre.

However:

Out of a pulse of 3×10E17 photons aimed at the reflector, only about 1–5 are received back on Earth, even under good conditions.

this post was submitted on 13 Nov 2024
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Out of Context Comics

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