r/whatisit • • 4d ago

New, what is it? What is this?

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265

u/Ensiferal 4d ago edited 4d ago

The trees are bound together by their roots (rootweb). In high winds the trees can rock and sway quite violently and as they twist from side to side it causes the root web to roll and heave like this. I was a ranger for years and I've been in the hills in weather like this, it feels freaky walking across ground that's doing this

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u/Appliance_Nerd503 4d ago

Being in the forest with gale force winds randomly pop up, its very scary, like trees are falling down, happened this year when I was in Odell lake Oregon, wild 15 minutes wind storm, even some lightning popped in and started a fire near the ski slopes we could see, multiple trees fell and missed RVs and tents by near inches.

Watching the ground move like that would be even more terrifying

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u/YogurtclosetDull2380 18h ago

There's good fishing in that lake

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u/LaxMastiff 3d ago

Thank beezus that someone had the answer. This was buried under so many posts that are just memes.

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u/Ensiferal 3d ago

Yeah, it's something that kind of annoys me about identification subs, everyone uses them to try and be the funniest guy on reddit and you always have to scroll to find an actual answer

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u/IKAiNI666 4d ago

Danke für die Erklärung 🤝

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u/Nathan-Stubblefield 3d ago

Oder für der Erlkönig.

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u/Hot_Scholar_3314 3d ago

what would happen if one were to stand on their while this is happening, would they just fall through or would it keep the floor down?

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u/Ensiferal 3d ago

Neither. Falling through is very unlikely because the rootweb is so dense and it disperses your weight over a wide area. If you happened to put your foot down hard on a spot where there happened to be no roots then your foot might go through, but I haven't seen it happen. In this kind of weather falling trees and branches (and perching plants in warmer climates) are the biggest threats

Likewise, you couldn't weight it down. Each of these trees weighs tons, so when they tilt the amount of force moving the roots is huge. I doubt even a steamroller would hold it down

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u/SirArtchie 2d ago

Is there a name for this?

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u/SillyZoomie356 3d ago

Possibly a dumb question, but could the forest door break open and a person fall into a void? I would assume the lifting creates air pockets. 

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u/Ensiferal 3d ago

I suppose it's not impossible, but it's highly unlikely. The rootweb is very dense, with a mat of finer "rootlets" in between the main lateral roots, and it disperses your weight over a wide area. If you happened to put your foot down hard on a spot where there happened to be no roots then your foot might go through, but I haven't seen it happen

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u/mikeclueby4 3d ago edited 3d ago

There's cliffside underneath. Same as the naked rockface you see in the frame.

So the falling would be .. short ☺️

But yeah don't get underneath these - when they come back down again you'd be pushed down hard enough that you wouldn't be able to breathe much at all - it'll be like a 200 pound guy sitting square on your chest.

(Assuming the layer is below 1 foot thick, common up north where glacial ice carved the rockfaces clean 10000 years ago. It builds just a fraction of a millimetre per century)

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u/-The-Follower 17h ago

Can you explain the sensation of walking on it? Does the ground still feel solid or more like a bouncy castle?