this post was submitted on 10 Aug 2025
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Mildly Interesting

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[–] kautau@lemmy.world 127 points 1 month ago (3 children)

I’ve always thought a stupidly expensive but cool and helpful device would be a tabletop mosquito/fly/wasp killer that shot lasers at said insects. I’m very happy to see there is an underwater version that seems to be really effective

[–] Knossos@lemmy.world 101 points 1 month ago (4 children)

They exist in trials. The human danger is too great though I think. If the laser thinks your eye is a fly for a split second, game over for vision.

[–] IAmNorRealTakeYourMeds@lemmy.world 47 points 1 month ago (2 children)

screw that, we'll just wear sunglasses indoors and look supercool and mosquito free

[–] PunnyName@lemmy.world 19 points 1 month ago (3 children)

Don't mess around with the guy in shades, oh no.

[–] IndiBrony@lemmy.world 10 points 1 month ago (2 children)

🎶 I wear my sunglasses at night 🎶

[–] Bloomcole@lemmy.world 3 points 1 month ago

The future's so bright, I gotta wear shades

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[–] zqps@sh.itjust.works 9 points 1 month ago (3 children)

A laser that can kill a fly in the fraction of a second has to deliver enough energy to fry your retina even though a dozen sunglasses. Also consider that the laser is focused down by the lens in your eye which greatly amplifies its power.

[–] aramova@infosec.pub 12 points 1 month ago (5 children)

That's not how specific wavelength safety goggles work. You can get both near UV blue light 440nm 5 watt goggles, and infrared depending on the laser.

Problem is they tend to shift the color of light for everything so much that they aren't pleasant to wear for a long time.

My worry would be getting hit on the skin, a 5 watt 440nm laser hurts, and it's a deep burning pain that doesn't go away.

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[–] sartalon@lemmy.world 8 points 1 month ago

So many ways to engineer out that hazard.

Last I understood was it's been patented 10 different ways from Sunday, and prototypes are just sitting on shelves, collection dust.

[–] phx@lemmy.ca 6 points 1 month ago

So now the fish are lice free, but blind? D'oh!

[–] Zaphod@discuss.tchncs.de 4 points 1 month ago

I think it wouldn't be a device to have on passively. Just something to turn on when you need it, like a vacuum. So you can just put safety glasses first.

[–] StopSpazzing@lemmy.world 6 points 1 month ago (2 children)
[–] Wispy2891@lemmy.world 18 points 1 month ago (1 children)

LOL, $600 for something that is unproven and has a high chance of being just a scam?

[–] StopSpazzing@lemmy.world 4 points 1 month ago (1 children)

Shhhhhh. I'm sure it will be a legit as StarCitizen!

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[–] rustyricotta@lemmy.dbzer0.com 66 points 1 month ago

Can you image what kind of cult these fish will create?

ALL HAIL THE PILLAR OF CLEANSING

Frank was zapped! HE IS THE CHOSEN ONE!

[–] slowmorella@discuss.tchncs.de 55 points 1 month ago

Haha, that is such a cool use for laser technology and also the fish look like they are clubbing. Thanks fo sharing :)

[–] lowleekun@ani.social 42 points 1 month ago

Fish farms are one of the most 'boring dystopia'-moments in existence. They are bad for the environment, breeding disease like it is their main job, they are cruel as fuck (imagine factory farming could layer their animals on top of each other) and most fish end up dead. It is funny how people instantly close their eyes when we are barbaric as fuck towards "food"-animals, like they do have no place on this planet but on our plates. The same disgusting mindset that has let us to another mass extinction.

[–] Grandwolf319@sh.itjust.works 33 points 1 month ago (1 children)

Now THIS is the cyberpunk reality I want to live in!

[–] HugeNerd@lemmy.ca 5 points 1 month ago (2 children)

That's an antiquated reality. It should be a mRNA vaccine or perhaps some kind of nanobot that kills these parasites.

[–] Grandwolf319@sh.itjust.works 10 points 1 month ago

That’s not cyberpunk though, more solar punk imo.

Cyberpunk is all about unideal but pretty optimal solutions.

[–] angrystego@lemmy.world 3 points 1 month ago (2 children)

That would be just good old plain sci-fi, no punk in that.

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[–] Harvey656@lemmy.world 30 points 1 month ago (2 children)

TIL: There is sea lice.

New terror unlocked.

[–] FundMECFSResearch@lemmy.cafe 15 points 1 month ago (2 children)

Although it’s technically not lice, this is called swimmer’s lice in many languages.

https://en.wikipedia.org/wiki/Swimmer's_itch?wprov=sfti1

[–] Eheran@lemmy.world 5 points 1 month ago (2 children)

Seems to be something unrelated to this here. That system could never target such tiny organism, let alone have and impact at the flow speed. These fish are also not any of their hosts.

[–] vodka@feddit.org 7 points 1 month ago* (last edited 1 month ago)

Yeah, video is about salmon louse: https://en.wikipedia.org/wiki/Salmon_louse

They are 5-18mm depending on sex and such.

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[–] ColeSloth@discuss.tchncs.de 7 points 1 month ago

Don't look up what replaces a fish' tongue, then...

[–] Luouth@lemmy.world 27 points 1 month ago
[–] Tollana1234567 22 points 1 month ago

it seems like a human created problem int eh first place too. when you farm salmon you have to do it in enclosed area, so this unnaturally density of the amount of fish per area is quite high, and parasites, and infections are spread quite easily. Alantic salmon is usually the only ones that can be farmed, other salmon species are much more difficult. wont affect parasites like parasitic cnidarians.

[–] HugeNerd@lemmy.ca 21 points 1 month ago (1 children)

say AAAAAAAHHHHHHHHHHHHHHRGGGHHH

[–] TriflingToad@sh.itjust.works 6 points 1 month ago

AAAAAAAAARRRRGUUGGUGHHRHEGEHHHHH

[–] ParadoxSeahorse@lemmy.world 21 points 1 month ago (2 children)

Why is it I go straight to “some fascist government is going to set this up on the street and just laser undesirables”

[–] nathanjent@programming.dev 4 points 1 month ago

Except it clears acne and keeps people clean-shaven. Unfortunately ​it doesn't work for some minority subset due to skin, hair color, or some other overlooked bias. Ultimately leading those individuals to fail job interviews and such. Leading them to a life of meager success compared to the majority.

[–] Bubbaonthebeach@lemmy.ca 15 points 1 month ago

Given that the (Norwegian) Fish Farms on the coast of BC almost annihilated the natural salmon due to the lice and other ecosystem damage, something to destroy the lice might be a little bit helpful. Although it might only be helpful to the penned fish and not the surrounding environment.

[–] Gradually_Adjusting@lemmy.world 14 points 1 month ago

That's pretty clever! Quite the footage

[–] dumbass@leminal.space 11 points 1 month ago

We are the Borg, resistance is futile.

[–] bitjunkie@lemmy.world 11 points 4 weeks ago

TIL fish can get lice

[–] switcheroo@lemmy.world 8 points 1 month ago

TIL there's lice in the sea...

[–] toynbee@lemmy.world 7 points 1 month ago

Awesome, but it's hard to imagine what this must seem like from the perspective of the fish.

[–] snausagesinablanket@lemmy.world 6 points 1 month ago (1 children)

Something fishy about this Star Wars episode.

[–] floo@retrolemmy.com 5 points 1 month ago

It’s a trap!

[–] Yawweee877h444@lemmy.world 6 points 1 month ago (1 children)

Cool we're finally in the future.

A little underwhelming.

[–] PunnyName@lemmy.world 3 points 1 month ago

A boring dystopia

[–] RizzRustbolt@lemmy.world 5 points 1 month ago (1 children)

Participle... she is dangling.

[–] HeyThisIsntTheYMCA@lemmy.world 4 points 1 month ago

we aren't reading our writing latin so we don't need to follow latin rules for tenses that don't exist in English

[–] rbos@lemmy.ca 3 points 1 month ago

Hopefully it would mitigate the spread into wild populations.

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