this post was submitted on 19 Apr 2025
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xkcd

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The biggest expense was installing the mantle ducts to keep the carbonate-silicate cycle operating.

https://explainxkcd.com/3078/

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[–] AceBonobo@lemmy.world 15 points 1 week ago (2 children)

There's no way that's going to hold, right?

[–] hemko@lemmy.dbzer0.com 45 points 1 week ago* (last edited 1 week ago) (2 children)

If that picture is to scale, those bolts are ~5km thick. Put enough of them and it should hold.

That said, the crust probably starts crumbling somewhere else creating new mountains or islands

[–] death_to_carrots@feddit.org 25 points 1 week ago (1 children)

After a certain point, the material around the bolt is more brittle than the bolt itself.

[–] hemko@lemmy.dbzer0.com 16 points 1 week ago (3 children)

Often is, but you can alleviate this with large washers like in the picture, and also by adding more bolts closer to eachothers

[–] death_to_carrots@feddit.org 4 points 1 week ago* (last edited 1 week ago) (1 children)

Would you say tectonic plates are more like wood or metal? There are different standards for both.

[–] hemko@lemmy.dbzer0.com 11 points 1 week ago

I'd think they're more like cookies, but idk I'm not really a geologist 😅

[–] usualsuspect191@lemmy.ca 4 points 1 week ago (1 children)

I think double-sided tape would be better. Or maybe we sew the plates together?

[–] hemko@lemmy.dbzer0.com 2 points 1 week ago (1 children)

Drill holes and zip tie the tectonic plates together

[–] usualsuspect191@lemmy.ca 4 points 1 week ago

Tectonic drift stitches. We'd have so much street cred in the galactic neighbourhood

[–] anomnom@sh.itjust.works 3 points 1 week ago

Too many bolts too close and you’ve just got a perforation.

[–] modeler@lemmy.world 5 points 1 week ago

the crust ... starts crumbling somewhere else creating new mountains or islands

Exactly. The oceanic crust will (in geologic time) crack in front of the bolts and be dragged down parallel to the bit that was bolted, stacking the oceanic crust with the newer bit under the older one.

The cracking and stacking happens naturally and this creates stacks of many oceanic crust sections moving to the left of the picture.

[–] OrganicMustard@lemmy.world 28 points 1 week ago (1 children)

At geological timescales everything is a liquid

[–] delgato@lemmy.world 7 points 1 week ago

I took an atmospheric science class in college and the professor described the field as “fast geology”, I like your description though that geology is the study of slow fluids!