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Cobra Commander posted:What if we shoot lasers from our battlecruiser and miss the enemy? Where do the lasers go? They've gotta hit something, right? Absent perfect optics they'll diffuse into harmlessness after several dozen kilometers. With hypothetical sci-fi perfect optics you'd still be diffraction limited due to quantum effects, so the same would happen but take longer. Optical weapons don't really miss, though.
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Mar 3, 2021 07:33
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Oh, I was referring to thermal lensing effects degrading beam quality, and preemptively countering the hypothetical "but what if futuretech materials science??" because even a perfectly focused stream of photons will diffuse. RE Star Wars, funny thing about lasers is that for all the fanfare they've had for decades they'd probably be pretty bad at intercepting space missiles once the tech is accounted for, since you can just armor them up.
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Mar 4, 2021 17:31
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