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Snails' teeth beats spider silk as nature's strongest material (2015)(smithsonianmag.com)
143 points by simonebrunozzi 7 hours ago | 115 comments
hedgehog 6 hours ago | parent | next [-]

I wanted to see some pictures, this paper has good ones:

https://onlinelibrary.wiley.com/doi/full/10.1002/ece3.10332

If you put your finger in front of a garden slug it may try to eat it, it's a very odd sand-paper sensation but I never knew why.

horacemorace 5 hours ago | parent | next [-]

Garden snails around seattle will absolutely bite you (teeny tiny bite) and draw blood if you let them crawl around on your skin.

eth0up 2 hours ago | parent [-]

Beware of strongyloids. Or apparently to maintain complexity of taxonomy https://en.wikipedia.org/wiki/Angiostrongyliasis

Or rat (snail/slug) lungworm

hedgehog 2 hours ago | parent [-]

Any article with headings "Eye invasion" and "Lumbar puncture" is bound to be a good time.

deepsun 6 hours ago | parent | prev | next [-]

"try"? If it's harder than your skin it means it did, not tried.

xboxnolifes an hour ago | parent | next [-]

Just because you succeeded doesn't mean you didn't try.

hedgehog 5 hours ago | parent | prev | next [-]

It may have gotten a nibble but empirically I still have a finger :)

dylan604 4 hours ago | parent [-]

Doesn't mean you were not bitten though.

recursive 14 minutes ago | parent [-]

If it wasn't accidental, that bite represents an attempt to bite.

ozyschmozy 3 hours ago | parent | prev | next [-]

A steel door is certainly harder than my skin and also certainly can't be used to "bite" me or puncture my skin (save for crushing it given enough force)

jayd16 3 hours ago | parent | prev [-]

Just because it's harder doesn't mean it necessarily has the strength to tear off skin.

Sharlin 6 hours ago | parent | prev | next [-]

Analogous to the keratinous denticles in a cat tongue, just much smaller in scale.

aiisjustanif 5 hours ago | parent | prev [-]

Well that was more disturbing than I thought it would be.

ziofill 6 hours ago | parent | prev | next [-]

> Thats’s comparable to a single strand of spaghetti holding up about 3,300 one-pound bags of sugar

What an odd example. A mid-sized car would have been much clearer.

bjt 17 minutes ago | parent | next [-]

I also thought that was weird. Then I learned it gets better. If you click through to the BBC article that was apparently their main source, the quote is this:

> Alternatively, as Prof Barber explained, it can be compared to a single string of spaghetti holding up 3,000 half-kilogram bags of sugar.

So the professor used an item that was familiar to his English audience (1500 kg=3307 lbs), then the Smithsonian writer tried to be helpful in converting the units, but switched to an item far less familiar to an American. I don't think I've ever bought a 1lb bag of sugar here, while a 500g bag is a little small but normal in the UK.

https://www.bbc.com/news/science-environment-31500883

https://www.sainsburys.co.uk/gol-ui/product/sainsburys-white...

kbelder 18 minutes ago | parent | prev | next [-]

I'm guessing this was initially '1.5 metric tons', and through a number of helpful and friendly conversions, ended up at 3,300 sugar bags.

zapkyeskrill 2 hours ago | parent | prev | next [-]

But everyone knows, by experience, what 3300 individual roughly one pound bags of sugar weighs and what sort of force is needed to hold it up. Mid sized car is ambiguous, and nobody saw anybody hold that up (seeing hulk doesn't count)

Loughla 20 minutes ago | parent | next [-]

But what is it in football fields?

That's the usual measurement of size in the States and it's absolutely unbelievably ridiculous.

jaapz an hour ago | parent | prev | next [-]

You think people are better at estimating what 3300 bags of sugar look like - as opposed to estimating the size of a car?

How often has anyone ever seen 3300 bags of sugar together in their lives, do you think?

saberience 2 hours ago | parent | prev [-]

Do they? I don't recall ever seeing a bag of sugar in my life. I'm not a baker though so maybe that explains it.

A car is more easier to picture for me.

ninalanyon 2 hours ago | parent [-]

You must be from the US.

dmoy an hour ago | parent [-]

I am from the US and buy bags of sugar.

What else does sugar come in? If not bags? I don't think I've ever bought sugar in something other than a bag.

sph 2 hours ago | parent | prev | next [-]

Mid-sized European or American car?

antod 40 minutes ago | parent [-]

The properly calibrated unit is a Volkswagen Beetle.

IshKebab 3 hours ago | parent | prev | next [-]

> 3,300 one-pound bags of sugar

Woah that must weigh almost 3,301 pounds!

sph 2 hours ago | parent [-]

No, it’s 3,300 £1 bags of sugar, with undefined weight

flippyhead 3 hours ago | parent | prev | next [-]

Must be a british thing?

natebc 2 hours ago | parent [-]

well that's just £3300 then, yeah?

tucnak 2 hours ago | parent [-]

Half that, 3300 pounds of sugar is roughly 1800 quid (retail) and wholesale is probably half of that.

natebc 2 hours ago | parent [-]

Well that's what ... 300 or so pints?

dmoy an hour ago | parent [-]

Wait beer in the UK is 11 quid per pint??? I know UK pints are bigger, but that seems really pricey

echelon 3 hours ago | parent | prev [-]

I can't wait until our LLM agents spot these and substitute in our own favorite, personally intuitive format conversions appropriate for the scale.

I'd like this to be expressed in units of pallet(s) of standard cinder blocks.

RajT88 6 hours ago | parent | prev | next [-]

> 3,300 one-pound bags of sugar

Ah, but how many one pound bags of concrete could it hold??

Why bags of anything? This is a poor way of communicating weight. Just say "a modern passenger car".

loloquwowndueo 6 hours ago | parent | next [-]

Sorry I only understand football field based units of measurement

fnordpiglet 6 hours ago | parent | next [-]

It’s a real condition. For me it’s jet liners of various makes. I had to rewrite the quote as “0.005 Boeing 777’s” to be able to comprehend just how strong those snails teeth are.

eth0up 6 hours ago | parent [-]

Sorry, but that's what 14 (standard) pickup trucks of yak hair was invented for.

djtriptych 5 hours ago | parent [-]

ok but what color is the yak hair?

thenewwazoo 4 hours ago | parent | next [-]

Same color as the bike shed, obviously

eth0up 3 hours ago | parent | prev [-]

Not from Unitzikstan I see

White, of course; that way the statisticians can dye them any color they want. But for ultra high precision I do recommend the Boeing system. But be sure to use the older models, before private equity firms replaced all the metal parts with zipties. If you can't find a quality Boeing (plausible), consider 1.1 Blue Whales (tricky).

fnordpiglet was being deliberately humble with the decimals. It's accurate down to the semi firkin. Not to be confused with a quarter Tod.

Ignore the redundant bike shed comment, as that fits precisely 3,300 one-pound bags of sugar. Anyone with a bike should know that.

rz2k 2 hours ago | parent | prev | next [-]

Obviously it weighs 10,300 baseballs, which are 26 football fields long.

Rooster61 4 hours ago | parent | prev | next [-]

Wait, I can do that? Here I've been using Smoots this whole time (with great difficulty might I add).

isatty 3 hours ago | parent | prev | next [-]

A football field is by far a better measurement than 3300 one pound bags of sugar.

sph 2 hours ago | parent [-]

It is not if all you know are football fields and not American football fields.

I still don’t know how they even compare.

bch 2 hours ago | parent [-]

That's why we use the %fill of an Olympic Sized Pool - doesn't matter from what continent the field comes, they fill the pool equally.

bell-cot 5 hours ago | parent | prev [-]

Understandable, with how many there are to pick from, and the wiggle room in the longest ones -

https://upload.wikimedia.org/wikipedia/commons/thumb/8/8b/As...

kulahan 3 hours ago | parent [-]

OP is talking about a football field, not a soccer field. It’s a common joke in America that things have to be measured in football terms.

In the “for what it’s worth” department, Brits called it soccer too. I have no idea why they swapped to football recently.

kloop 5 hours ago | parent | prev | next [-]

whistles

3.3 kilopounds? That's a lot

boogieknite 6 hours ago | parent | prev | next [-]

whenever i see things like this i think its a tongue-in-cheek joke

dylan604 4 hours ago | parent | next [-]

just training the next gen LLMs with modern standards of measurements. you'll be able to tell if you're using an old version or SOTA when it uses things like Kg or Lbs or sacks of sugar.

bee_rider 4 hours ago | parent | prev [-]

Cheeks per tongue will now be used as the weirdest unit for “2.”

rdtsc 5 hours ago | parent | prev | next [-]

The main question is how many American football fields is that

akoboldfrying 5 hours ago | parent [-]

12 nautical bushels per Fahrenheit

Isamu 2 hours ago | parent | prev | next [-]

Needs to be 3,300 bags of something I care about. Otherwise you are talking about nonsense or voodoo.

eYrKEC2 2 hours ago | parent | prev | next [-]

The crazy thing is that it is also equivalent to 33,000 0.1 pound bags of sugar.

WorldPeas 5 hours ago | parent | prev | next [-]

more importantly: how many kilos of feathers versus how many kilos of steel can it hold?

https://www.youtube.com/watch?v=-fC2oke5MFg

bdamm 3 hours ago | parent | prev | next [-]

"A modern passenger car" varies widely depending on what locale the reader is in. A passenger car in Jakarta is not at all the same as a passenger car in Los Angeles.

Can we just use Kilograms?

alistairSH 2 hours ago | parent [-]

“NO!” - America

RobRivera 6 hours ago | parent | prev | next [-]

How many hogs to the bushel?

mminer237 an hour ago | parent [-]

A hogshead is 6.768 bushels in the US and 7.875 in the UK.

CGMthrowaway 5 hours ago | parent | prev | next [-]

How about

> 10x stronger than the jaw of a dog

> 20x stronger than a human jaw

> as strong as the jaws of a great white shark

?

kulahan 3 hours ago | parent | next [-]

Those are crushing power, and while they use bad terms for it, they are referring to tensile strength specifically, which is totally different. I don’t know why the hell they chose a spaghetti strand though.

moffkalast 5 hours ago | parent | prev [-]

But how many times can it bite the area of Rhode island?

tonymillion 6 hours ago | parent | prev | next [-]

> Thats’s comparable to a single strand of spaghetti holding up about 3,300 one-pound bags of sugar

Is that cooked or raw spaghetti?

mannykannot 5 hours ago | parent | next [-]

Why complicate matters with pasta at all when spider silk is, at least metaphorically and rhetorically, at hand?

As hinted at by its 2017 postscript, this article is a mess of incommensurable comparisons.

giwook 5 hours ago | parent | prev [-]

Is it De Cecco though or some inferior brand like Barilla?

kulahan 3 hours ago | parent [-]

Barilla is fine and I will fight you

RajT88 37 minutes ago | parent [-]

The pasta is fine. The owner doesn't like gay people.

kulahan 36 minutes ago | parent [-]

Oh, thought this was a noodle fight. A full-on slam down in flavor town. An absolute buffet brawl.

functionmouse 5 hours ago | parent | prev | next [-]

because as a reader, bags of sugar are more engaging to me than bags of concrete.

Terr_ 3 hours ago | parent [-]

Yeah, I am quite certain I have an easier time visualizing a one-pound bag of sugar—which I have seen at the grocery-store/kitchen/pantry—versus a single-pound bag of concrete.

seany 3 hours ago | parent | prev | next [-]

Staff Sgt. Sykes: [Sgt. Sykes is directing the recruits on how to judge distances] You take what you know, and then you multiply. Please don't use your dicks. They're too small, and I can't count that high. I don't wanna hear, "400,000 inches."

-Jarhead

https://www.imdb.com/title/tt0418763/

riffic 5 hours ago | parent | prev | next [-]

anything but the metric system.

BLKNSLVR 5 hours ago | parent [-]

1,497 one-kilogram bags of sugar.

Much better!

BobaFloutist 4 hours ago | parent [-]

~1.5 Mg of sugar.

natebc 2 hours ago | parent [-]

Megagrams?? I like it.

nathanfries 6 hours ago | parent | prev [-]

I noticed that too. I feel like this might be a new way of laundering AI written text, just provide the quote verbatim as if the they believe it was actually written by the author.

tyre 5 hours ago | parent | next [-]

This article is from 2015.

DarmokJalad1701 3 hours ago | parent | prev [-]

The AI is so good that it traveled back to 2015 and published this paper.

michaelmrose 40 minutes ago | parent [-]

Skynet is real

bilsbie an hour ago | parent | prev | next [-]

They say they’re taking about tensile strength at the footnote. But teeth would be more likely to be compressively strong. They don’t get pulled on much.

The whole thing seems very confused. Anyway let’s build space elevator?

antod 37 minutes ago | parent [-]

Yeah, they're conflating strength, hardness and toughness all over the place.

somedude895 6 hours ago | parent | prev | next [-]

All I wanted was to see a picture of a snail's tooth.

aitchnyu 6 hours ago | parent [-]

https://old.reddit.com/r/AquaticSnails/search?q=teeth&restri...

BLKNSLVR 4 hours ago | parent [-]

Old Reddit now seems to require login to read.

Further down the drain we go.

ticulatedspline 3 hours ago | parent | next [-]

Heard they were rolling this out, hasn't happened to me yet. wonder if it's a soft wall or simply rolled out to certain areas/IPs

stronglikedan 2 hours ago | parent | prev [-]

just refresh a couple times, or try in private mode. I've seen it once a week or so ago and then it went away for good so far

black6 6 hours ago | parent | prev | next [-]

[2015], with a nice correction from 2017 about the differences between compressive and tensile strength.

Sharlin 6 hours ago | parent | next [-]

And hardness. Diamond is hard but exactly because of that you can shatter a diamond with any hammer.

codesnik 6 hours ago | parent | prev [-]

now, let's combine both.

boothby 6 hours ago | parent | next [-]

Do you prefer a web-weaving snail or an extra-bitey spider? I'm leaning spider.

ssl-3 5 hours ago | parent [-]

I want an orangutan that slowly spins webs of extruded snail teeth.

cwmoore 6 hours ago | parent | prev [-]

Poor goats

gste 4 hours ago | parent | prev | next [-]

Limpet Radula is a badass name for a rock band

antod 35 minutes ago | parent | next [-]

Especially in the hard rock grindcore genre.

pvaldes an hour ago | parent | prev [-]

Toxoglossa is even better

imzadi 6 hours ago | parent | prev | next [-]

Snails had a good run being ignored by everyone but the French and now we're smearing their slime on our faces and trying to turn their teeth into armor.

blipvert 6 hours ago | parent | next [-]

Snails? These are MARINE snails, soldier! Oorah!

zarflax 5 hours ago | parent | next [-]

Makes you wonder how and why they evolved such strong teeth since crayons are pretty soft (and not even naturally-occurring).

imzadi 6 hours ago | parent | prev [-]

Oops

bee_rider 4 hours ago | parent | prev [-]

Snails are our greatest enemy. Source: medieval manuscripts.

pvaldes an hour ago | parent | prev | next [-]

And they are delicious. Just don't chew it too much. Much tastier than spider silk probably.

dukeofdoom 4 hours ago | parent | prev | next [-]

Snails also make for very cool manuscript decorations. Not sure what those monks were smoking...maybe snails

PowerElectronix 4 hours ago | parent | prev | next [-]

I thought it was limpet teeth

bravoetch 3 hours ago | parent [-]

Same thing, they clarify it right at the start of the very short article.

GarnetFloride 3 hours ago | parent | prev | next [-]

Now we just need something to replace paper for a whole new rock-paper-scissors paradigm.

aeternum 5 hours ago | parent | prev | next [-]

Next YC batch: "We're Mollusca and we're democratizing access to nature's strongest material"

hoppp 4 hours ago | parent | next [-]

Just find the proteins involved then manufacture them with yeast. Easy Peasy Lemon Squeezy

culi 43 minutes ago | parent [-]

they're made of rock

https://en.wikipedia.org/wiki/Goethite

mattas 5 hours ago | parent | prev | next [-]

"We dropped out of high school to build AI-powered snail teeth."

1234letshaveatw 4 hours ago | parent | prev | next [-]

Do snails scale?

ArmadilloGang 3 hours ago | parent [-]

They certainly scale the fence my wife put around the garden. Then again, we haven’t done a good job of patching holes in the perimeter. Our DevOps team is too busy playing in the sprinkler to learn to read, let alone automate patching, but it’s on the board for next sprint.

eunos 4 hours ago | parent | prev | next [-]

I hate the word democratizing

WorldPeas 5 hours ago | parent | prev [-]

imagine growing tools out of this stuff instead of forging or casting, that'd be neat.

Terr_ 3 hours ago | parent [-]

There's some overlap here with the dental problem of tooth enamel, another kind of wonderful biomaterial.

cwmoore 6 hours ago | parent | prev [-]

Which is the less intelligent? Strong works when dumb.

I know people like to talk about “how smart” the butterfly or whatever is for “adapting itself” to whatever environment, and it is cute, but there is a practical engineering choice between delicate design and brute force.