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[-] Jesus_666@feddit.de 111 points 1 week ago

Laser tanks are impractical. What if the enemy wears mirrored shades? That laser goes right back and kills you instead. You don't want your 100 million dollar tank to be taken out by a pair of Ray-Bans.

[-] BraveLittleToaster@lemmy.world 93 points 1 week ago

We can put shades on the tank to bounce it right back

[-] nuke@sh.itjust.works 106 points 1 week ago
[-] verity_kindle@sh.itjust.works 26 points 1 week ago

Classic,but inappropriate. Tanks should not wear aviators, but big chunky goggle style Warby Parkers on sale $1.89

[-] nuke@sh.itjust.works 39 points 1 week ago* (last edited 1 week ago)
[-] verity_kindle@sh.itjust.works 14 points 1 week ago

Str8 outta Fort Sill, Oklahoma BITCHEZ

[-] webghost0101@sopuli.xyz 66 points 1 week ago* (last edited 1 week ago)

WAR… is.. disco?

Next your gonna tell me the raving rabbits are the ones driving them.

[-] neo@lemy.lol 20 points 1 week ago

I guess war does change.

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[-] tal 21 points 1 week ago* (last edited 1 week ago)

https://www.military.com/daily-news/2024/04/24/army-has-officially-deployed-laser-weapons-overseas-combat-enemy-drones.html

The Army has officially deployed a pair of high-energy lasers overseas to blast incoming enemy drones out of the sky, the service recently confirmed, marking a major milestone for the U.S. military's ongoing development of futuristic directed-energy weapons.

The 20-kilowatt Palletized High Energy Laser, or P-HEL, "is currently deployed to support the Army's mission" in an undisclosed location abroad, a spokesman for the service's Rapid Capabilities and Critical Technologies Office, which manages its directed-energy portfolio, told Military.com.

I think the bigger concern is enemy UAVs wearing shades.

[-] verity_kindle@sh.itjust.works 11 points 1 week ago

Yay for undisclosed location! Slava Ukraini!

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[-] xantoxis@lemmy.world 19 points 1 week ago
[-] Sidyctism2@discuss.tchncs.de 14 points 1 week ago

I HATE THIS SO MUCH

and its soo awesome

[-] BigMikeInAustin@lemmy.world 7 points 1 week ago

This is why I never open someone else's makeup bag.

Doesn't that cause a nuclear explosion?

[-] Pirasp@lemmy.world 12 points 1 week ago

That's when you go back to explosives, you don't even need shrapnel anymore, they are already wearing it!

[-] Socsa@sh.itjust.works 5 points 1 week ago

The moment those mirrors stop being perfectly shiny they begin thermal collapse. Which is the real reason mirrors exposed to the atmosphere can't be used as targeting optics.

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[-] puchaczyk@lemmy.blahaj.zone 83 points 1 week ago
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[-] Norgur@fedia.io 38 points 1 week ago

I only we had something we could fire that do almost the same arc as that. That would be ballin'! So I'd call it ballistics

[-] neo@lemy.lol 26 points 1 week ago

Ridiculous! You would basically need the mass of a planet for that to work.

[-] Norgur@fedia.io 16 points 1 week ago

Dangit! We won't find that anywhere on Earth!

[-] mindbleach@sh.itjust.works 9 points 1 week ago

You fools. Look up!

It's not a "moonshot," it's a 360 no-scope.

[-] ColeSloth@discuss.tchncs.de 7 points 1 week ago

Aiming such a thing would be more than an art.....

[-] Pringles@lemm.ee 5 points 1 week ago

That would work if the earth wasn't flat. As it is, you need to transport the artillery below their position and shoot them from there. Like Ender shooting through the ice clouds.

[-] polonius-rex@kbin.run 31 points 1 week ago

the tank is confused by its own reflection and attempts to fight itself

[-] Socsa@sh.itjust.works 5 points 1 week ago

This is why certain Army weapons are not appropriate for the Marines

[-] Hobbes_Dent@lemmy.world 31 points 1 week ago

Sigh.

Because good lasers are red.

[-] Seraph@fedia.io 35 points 1 week ago

...the color of a blaster bolt (character-scale or starship scale) is determined by the quality of the gas used in it - higher quality gives you green, lower quality gives you red. The Rebellion didn't have access to the highest quality gas, and had to make do with the lower quality ammunition.

Huh, I guess I wondered but never looked it up until now.

[-] turtlepower@lemm.ee 10 points 1 week ago

I mean, that's how it was retconned, but it was originally just so viewers could tell if it was the good guys or bad guys shooting. Just like there were only supposed to be blue (good guys) and red (bad guys) lightsabers. As the Star Wars universe and lore expanded, things got retconned and added/changed/removed, and it's still happening with the new stuff that comes out. Isn't world-shaping neat?

[-] bufalo1973@lemmy.ml 26 points 1 week ago

If you fire a laser against a mirror, it bounces but raises the heat of the mirror so you end up melting the mirror and destroying the drone.

[-] skulblaka@startrek.website 24 points 1 week ago

I may risk being too credible here, but a $80 drone is a lot more expendable than a $40m laser tank. The drone can be considered a consumable. Hell, mark the drones down as ammo.

[-] nuke@sh.itjust.works 21 points 1 week ago* (last edited 1 week ago)
[-] CanadaPlus@lemmy.sdf.org 10 points 1 week ago

Depending on how long you do it, how powerful the laser, and how quickly it can cool off at the same time.

And like the other guy said, you can make really good mirrors if you only care about one wavelength.

[-] BigMikeInAustin@lemmy.world 9 points 1 week ago

But the drone stays in the air by making wind, which would cool down the mirror?

[-] CanadaPlus@lemmy.sdf.org 4 points 1 week ago* (last edited 1 week ago)

Unironically yes. If that's not enough, add water.

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[-] Jumuta@sh.itjust.works 5 points 1 week ago

not if you have total internal reflection

[-] mindbleach@sh.itjust.works 8 points 1 week ago

In all seriousness, wavelength-specific dielectric mirrors can approach six nines of reflectivity.

The hard part is hitting the mirror instead of the drone.

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[-] HackerJoe@sh.itjust.works 16 points 1 week ago* (last edited 1 week ago)

Mirrors melt and break when hit with a laser of more than "pretty lights power".
This dude built a 2kW one with optics: https://www.youtube.com/watch?v=xNmbvaUzC8Q
mirror at ~ 4:30

EDIT: I know where I am, that video is too good not to share though. Vote away.

[-] str82L@lemmy.world 6 points 1 week ago

I rarely give my time to videos that long, but it was awesome for the full half hour. That guy's having fun. Thanks for sharing.

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[-] BigMikeInAustin@lemmy.world 5 points 1 week ago

Nah. This doesn't count because that guy is clearly from the future when you can buy a 1K laser at the corner store. In 2024, they are a little bit harder to come by.

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[-] Pirasp@lemmy.world 13 points 1 week ago
[-] verity_kindle@sh.itjust.works 4 points 1 week ago

Queen of battle! Yasss

[-] verity_kindle@sh.itjust.works 12 points 1 week ago

We don't need Sky Ranger, mirrorbois or lasertank, we have shitballoons.

[-] TheBlue22@lemmy.blahaj.zone 12 points 1 week ago

Buddy called inverse-square law

[-] zaphod@sopuli.xyz 19 points 1 week ago

Inverse square law is just a geometric limitation, focus your lasers more, problem solved.

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[-] doingthestuff@lemmy.world 12 points 1 week ago

This is also how you check if your ass is clean.

[-] Socsa@sh.itjust.works 8 points 1 week ago

This was a real concept for the anti-ICMB 747. The idea was to loiter it outside air defense range and then send drones in as reflectors to target the lasers much closer to the threat.

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[-] mindbleach@sh.itjust.works 7 points 1 week ago

Alternately, polish every car window facing east.

Or... skip a step. Line of sight is irrelevant if your aircraft is already exploding!

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[-] BigMikeInAustin@lemmy.world 7 points 1 week ago

I actually do this with my TV infrared remote control.

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this post was submitted on 22 Jun 2024
340 points (97.5% liked)

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