this post was submitted on 18 Nov 2024
1008 points (99.2% liked)

Science Memes

11111 readers
2506 users here now

Welcome to c/science_memes @ Mander.xyz!

A place for majestic STEMLORD peacocking, as well as memes about the realities of working in a lab.



Rules

  1. Don't throw mud. Behave like an intellectual and remember the human.
  2. Keep it rooted (on topic).
  3. No spam.
  4. Infographics welcome, get schooled.

This is a science community. We use the Dawkins definition of meme.



Research Committee

Other Mander Communities

Science and Research

Biology and Life Sciences

Physical Sciences

Humanities and Social Sciences

Practical and Applied Sciences

Memes

Miscellaneous

founded 2 years ago
MODERATORS
 
top 50 comments
sorted by: hot top controversial new old
[–] Zip2@feddit.uk 21 points 2 days ago (1 children)

How do they stop the little parachutes from sliding off?

[–] nexguy@lemmy.world 12 points 2 days ago (1 children)

Just make sure the strap between the legs is tight enough.

[–] Zip2@feddit.uk 10 points 2 days ago (1 children)
[–] Dragonstaff@leminal.space 5 points 1 day ago* (last edited 1 day ago)

fluggelgleckheimlen

The fish are hardcore. None have used it yet

[–] 3ntranced@lemmy.world 26 points 2 days ago

From another similar post, introducing fish to a large body of water has to be done like this or else the fish don't understand or acclimate properly and die. It's a slap to the noggin like "hey wakey wakey, go find some algae to nibble on"

[–] cybermass@lemmy.ca 110 points 3 days ago (1 children)

I wonder what the survival rate is for these fishes

[–] jared@mander.xyz 173 points 3 days ago (3 children)

According to the links in this post It's 95%-99% survival.

[–] zik@lemmy.world 35 points 3 days ago* (last edited 3 days ago)

I wonder what the "fuck that hurt" rate is for these fishes

[–] Iheartcheese@lemmy.world 60 points 3 days ago (9 children)

Then why can't I yeet a bunch of goldfish

[–] _bcron_@lemmy.world 108 points 3 days ago (4 children)

One of the bigger reasons has to do with the square cube law - as the size of something increases, surface area increases by a factor of 2 but mass increases by a factor of 3, so little fishes have a surface area-to-mass ratio that is quite a bit higher than a larger fish, and they're more susceptible to abrupt changes in temperature.

Kinda like how an ice cube will melt a lot faster than a big slab of ice, the core temperature of some small fish like a goldfish is gonna change more rapidly than the core temperature of a big fish like a trout so they tend to be a lot more finnicky in regard to significant and instantaneous changes to temperature and stuff. A larger fish might shrug off a significant change because it affects them more slowly, but that might be a totally wild an overwhelming experience for a little fish to go through

[–] BanjoShepard@lemmy.world 63 points 3 days ago (1 children)

And in a similar but completely different way, the fish are being added to massive bodies of water. Home aquariums are minute in comparison, so they can't balance out chemical swings as easily and are much more prone to higher levels of nitrites and other toxic chemicals. The larger the body of water, the more stable the water quality.

[–] turtlepower@lemm.ee 23 points 3 days ago (3 children)

So what I hear you saying is I need a bigger aquarium...

[–] Canadian_Cabinet@lemmy.ca 25 points 3 days ago

You always need a bigger aquarium

[–] BallsandBayonets@lemmings.world 8 points 3 days ago (1 children)

You could probably air drop one goldfish into a 100 gallon tank and it'd be fine (assuming it survived the fall).

load more comments (1 replies)
load more comments (1 replies)
[–] TriflingToad@sh.itjust.works 53 points 3 days ago (1 children)

something i love about Lemmy is that on the drop of a hat someone is willing to calculate the "surface area to fish ratio"

[–] leisesprecher@feddit.org 32 points 3 days ago (2 children)

Problem is, you almost never know if that's actually true or complete bullshit.

It seems plausible, but killing virgins for rain also seemed plausible back then in the 70s.

[–] Flocklesscrow@lemm.ee 11 points 3 days ago* (last edited 3 days ago)

"But it has rained, hasn't it?" Smug look

An example of why arguing with idiots is impossible to win.

[–] Cethin@lemmy.zip 7 points 3 days ago

The 70s was a wild time.

[–] ziggurat@lemmy.world 46 points 3 days ago (2 children)

The math actually works, and is quite simple. Just assume the fish is a sphere

I can only assume the fish goes in the square hole.

[–] superkret@feddit.org 28 points 3 days ago (2 children)
[–] dream_weasel@sh.itjust.works 9 points 3 days ago

As opposed to the high friction vacuums we are used to.

[–] Iheartcheese@lemmy.world 6 points 3 days ago

IMMA YEET THEM SO FAR

[–] dingus@lemmy.world 2 points 2 days ago (3 children)

I'm confused though. Don't people use this to talk about how small things like bugs can fall from a large height and be uninjured, but large things like a human or elephant will be injured if falling from a height? I feel like what you're saying is backwards to what the internet has told me.

[–] Apollo42@lemmy.world 7 points 2 days ago

The person you replied to only spoke about sudden change in temperature, not falling from height.

[–] _bcron_@lemmy.world 5 points 2 days ago* (last edited 2 days ago)

No, it's all the same in that regard - a ladybug will have a far higher surface area to volume/mass, and that affects terminal velocity.

Ladybug might have 10 square millimeters and weigh .05 grams, 200 square millimeters per gram

Elephant might have 15 square meters and weigh 5000 kilograms. 15 million square millimeters and 5 million grams, so 3 square millimeters per gram

But the elephant in the room (slaps knee) is momentum.

Let's say, hypothetically, we shove a ladybug and an elephant off a 125m cliff and pretend they both have a ridiculously high terminal velocity. That's enough for them to reach 50 meters per second or 180kph. .05 gram ladybug's momentum would be an infinitessimally small 2.5 kg·m/s, meanwhile the elephant is at 250000 kg·m/s, and the elephant explodes.

The thing that makes the ladybug survive the fall (ridiculously low mass relative to surface area) is the same thing that would make a ladybug freeze in minutes if you tossed it in a freezer. Conversely, elephant wouldn't really be bothered by a couple minutes in a freezer.

It's that rapid change in internal body temperature that stresses smaller fish out, dumping them in water that is much colder or warmer than them

[–] bluewing@lemm.ee 2 points 2 days ago

It ain't the fall that kills you, it's the sudden stop........

[–] FooBarrington@lemmy.world 28 points 3 days ago

Who's stopping you?

MAKE your DREAMS come TRUE

[–] jared@mander.xyz 30 points 3 days ago (1 children)
[–] explodIng_lIme@lemmy.world 9 points 3 days ago

Skill issue

[–] shalafi@lemmy.world 26 points 3 days ago (4 children)

You can yeet goldfish. Carp are stupid tough. It's the tropical fish we often keep that are kinda wimpy. Also, they're not coming from a super healthy environment (the store) to our tanks.

load more comments (4 replies)
[–] SpruceBringsteen@lemmy.world 15 points 3 days ago

Have a pilots license?

[–] danc4498@lemmy.world 10 points 3 days ago (2 children)

Maybe 95% survive, but how many are injured in a way that might impact their quality of life?

Since these are being dropped specifically for the purpose of being caught and killed asap, quality of life might not matter.

For your sad little goldfish, please be gentle!

[–] subtext@lemmy.world 17 points 3 days ago

Also, gotta think about whether 5% mortality rate is acceptable.

For an airdrop number of pond fish? Sure!

For your hobbyist number of expensive fish? Absolutely not

load more comments (1 replies)
[–] bluewing@lemm.ee 2 points 2 days ago

You certainly can!

load more comments (2 replies)
[–] Didros@beehaw.org 16 points 3 days ago

...that sounds to me like "survive the fall" more than "survive the week"

[–] rustydrd@sh.itjust.works 64 points 3 days ago (1 children)

People ITT must've forgotten about the salmon cannon.

[–] Routhinator@startrek.website 17 points 2 days ago

I have never seen this and thank you for sharing it because good god I needed it.

[–] fossilesque@mander.xyz 39 points 3 days ago (4 children)

I'm gonna keep that typo. 😈

[–] bulwark@lemmy.world 22 points 3 days ago (1 children)

Not sure I can let you get awat with that.

load more comments (3 replies)
[–] Routhinator@startrek.website 15 points 2 days ago

Gotta weed out the weak ones with the fall.

[–] Hupf@feddit.org 24 points 3 days ago
[–] Zacryon@feddit.org 10 points 3 days ago

The famous flying fish.

[–] SplashJackson@lemmy.ca 10 points 3 days ago (1 children)

Fishmonger bros be down there with a net

load more comments (1 replies)
[–] Sam_Bass@lemmy.world 7 points 3 days ago

Bombs Awash

I mean, that’s just Utah… Good chance it’s not up to speed

[–] Tippon@lemmy.dbzer0.com 8 points 3 days ago

So, if I understand you correctly, what you're saying is - given the quite large body of water about half a mile away from me, all downhill, I should get a giant catapult and fling some piranha.

I'll go down in history, either for the best April Fools joke ever, or if my aim is off, the best Halloween prank ever 🐟🐠🐟😁

load more comments
view more: next ›