this post was submitted on 25 Oct 2024
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Science Memes

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[–] BreadOven@lemmy.world 2 points 57 minutes ago

Highly depends on the dog.

[–] starman2112@sh.itjust.works 16 points 6 hours ago* (last edited 6 hours ago) (1 children)

I got a bone to pick with this kind of diagram. Everyone likes to talk about how much better other animals are at things than us, but if you look at animals holistically, humans are really fuckin good at everything. Like yeah there's a bunch of animals that are faster than us, a bunch of animals that bites stronger than us, a bunch of animals that are more muscular than us, but we're consistently in like the top 10% overall

Finna make a version of this meme where it's mice and iguanas

[–] Zess@lemmy.world 8 points 4 hours ago

We also have better full-light vision than a lot of animals, even the ones with good dark vision.

[–] Ma10gan@slrpnk.net 43 points 8 hours ago (1 children)

So Isaac Newton had only 1/700th the bite force of a normal human? Pathetic.

[–] YtA4QCam2A9j7EfTgHrH@infosec.pub 13 points 7 hours ago

Probably due to all the mercury and shit he was playing with as an alchemist

[–] Kolanaki@yiffit.net 19 points 7 hours ago (1 children)

I can eat way more than 700 fig Newtons. This is bullshit.

[–] OutlierBlue@lemmy.ca 4 points 4 hours ago (1 children)

Yeah but do you have the bite force to bite through all 700 at once?

[–] Kolanaki@yiffit.net 3 points 4 hours ago* (last edited 4 hours ago)

I would think... They're pretty soft.

Perhaps not after my jaw dislocates to fit them all in my mouth, though.

[–] isolatedscotch@discuss.tchncs.de 15 points 9 hours ago (1 children)

Given:

Bite Force of T. rex: 45,000 Newtons

Jaw Closing Distance: Approximately 0.3 meters

Energy=Force×Distance=45,000N×0.3m=13,500Joules

Say we have a typical 10w led lightbulb, how much could it power it for?

Time= Power/Energy=13,500J / 10W=1,350 seconds, or approximately 22 and a half minutes with a single T-Rex chomp, assuming 100% conversion efficiency

[–] qjkxbmwvz@startrek.website 12 points 7 hours ago

Fun fact, the (rough) conversion efficiency of calories to mechanical joules in the human body (separate from the mechanical to electrical you're referring to) is about 25%


but this is about the same factor as going from calories to joules! So, for a human to put out 13.5 kJ of energy would require about 13.5 food calories (kilocalories).

[–] Riffraffintheroom@hexbear.net 8 points 8 hours ago* (last edited 8 hours ago) (1 children)

Newton had some weak ass jaws.

[–] MeowZedong@lemmygrad.ml 3 points 2 hours ago

Never skip jaw day.

[–] grrgyle@slrpnk.net 29 points 11 hours ago (4 children)

Every time I picture an alligator biting me I'm like I bet I could wiggle out or like somehow overcome it, because their jaws look so long and flat - like how much strength could they have? Certainly not more than a lion.

Well.

[–] Mothra@mander.xyz 2 points 57 minutes ago

Just remember these guys can grip an animal the size of a horse with their jaws, overpower it, drag it to the water and rip it apart.

[–] Zorsith@lemmy.blahaj.zone 23 points 10 hours ago* (last edited 10 hours ago) (1 children)

The closing force is significantly higher than its opening force IIRC. If you can close its mouth without getting bitten it's screwed.

[–] phdepressed@sh.itjust.works 20 points 10 hours ago (2 children)

Didn't like everyone watch Steve Irwin do this to massive crocs like all the time.

[–] Notyou@sopuli.xyz 7 points 8 hours ago (1 children)

Yeah, but time marches on and everything. Young people won't know him. Someone said they didn't know who a guy in a picture was the other week. It was Tony Bourdain and I felt old.

[–] phdepressed@sh.itjust.works 6 points 7 hours ago (1 children)

A coworker the other day didn't know there was an animated grinch movie before the Jim Carey one. ಠ╭╮ಠ

[–] Notyou@sopuli.xyz 2 points 7 hours ago
[–] grrgyle@slrpnk.net 2 points 8 hours ago

That was Steve though - he probably knew the croc

[–] The_Che_Banana@beehaw.org 5 points 10 hours ago (2 children)

Salt water Crocs are not tiny. Some alligators are on the smallish side comparatively, but there are big gators out there too.

Crocodiles are also one of those rare animals that don't "age" in the traditional sense. Once they reach adulthood, they continue to get larger and larger until they eventually starve or their organs collapse under their own body weight. They don't lose muscle mass or bone density or any of the usual issues we attribute to getting older.

Imagine having the build of a 25 year old at 100 and being 7+ft tall. That's how crocodiles age.

[–] grrgyle@slrpnk.net 1 points 8 hours ago

Yeah I've never seen one in real life, so I feel like like I'm not grokking the sense of scale.

Kind of like seeing a horse or moose for the first time (guess my hemisphere lol).

[–] moonlight@fedia.io 4 points 10 hours ago (1 children)

I bet this is peak force is measured at the base of the jaw, meaning the teeth at the tip would exert significantly lower force. So it might be possible to escape a small alligator, I'm not sure.

[–] unexposedhazard@discuss.tchncs.de 2 points 6 hours ago* (last edited 6 hours ago)

There are lots of videos about croc bite force. With scales attached to their jaws and stuff. Shouldnt be hard to find.

This younger one was measured at the base with 820 pounds https://www.youtube.com/watch?v=cG7ruzhqB9Y&t=158

[–] BoxedFenders@hexbear.net 3 points 7 hours ago (3 children)

There's no way a human's bite is only 30% less than a dog's. Our jaws have shitty leverage to chomp down hard.

[–] PotatoesFall@discuss.tchncs.de 4 points 6 hours ago

We are omnivores and do a lot of chewing. Dogs don't really chew, just rip.

Some great apes that have more raw plants in their diet even have a bony ridge on their skull that the jaw muscles attach to.

Our jaws actually have great leverage, our molars are very close to where the jaw muscle attaches.

[–] Flocklesscrow@lemm.ee 3 points 6 hours ago* (last edited 5 hours ago)

Not all dogs are the same, of course. Some dog breeds can bite harder than wolves. We selectively bred them for chomp strength.

[–] Draconic_NEO@mander.xyz 2 points 6 hours ago (1 children)

It's averaged out, the real values are in a range, they just took the average between them.

[–] KazuchijouNo@lemy.lol 2 points 4 hours ago

I bet chihuahuas are bringing down the average

[–] Potatisen@lemmy.world 16 points 11 hours ago

To break the largest human bone, the thigh bone, an estimated force of 4,000 newtons is needed. However, the amount of force required to break a bone depends on how the force is applied.

-Random internet source

[–] intensely_human@lemm.ee 2 points 7 hours ago (1 children)

Me, I can only do about four or five of those cookies at a time

[–] JamesStallion@sh.itjust.works 1 points 7 hours ago

But it's not a cookie! It's a Newton!

[–] dylanmorgan@slrpnk.net 7 points 10 hours ago (3 children)

How is this calculated? Presumably you could directly measure all but the T-Rex and pliosaur, but how are those bits forces calculated?

[–] MajorMajormajormajor@lemmy.ca 14 points 10 hours ago

I'm no BiteForceologist but I was assume they compare muscle size, muscle attachment points, and mechanical advantage of extant creatures and then apply that data to fossils. So not 100% accurate, but not just guessing randomly.

[–] phdepressed@sh.itjust.works 4 points 10 hours ago

For the extant creatures you give them something they want to bite on and stick a measurement thing inside of that.

For extinct creatures see other comment. You compare anatomy and do math.

[–] whyNotSquirrel@sh.itjust.works 1 points 10 hours ago

Soooo it's not the number of this guy they can eat?

[–] frickineh@lemmy.world 6 points 11 hours ago (1 children)

Man, we gotta pump those numbers up. Get our bite force on the next level.