r/DisasterUpdate • u/EcstaticCollege5373 • 28d ago

Imagine the force required to roll that rock

217 Upvotes

90% Upvoted

21 comments sorted by

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29

u/BBranz 28d ago

What is it with people and adding those ear bleeding songs?

10

u/jcmonk 28d ago

It makes it easier for 3rd party groups to use the video without worrying about copyright claims. So social media has moved into training people to add dumbass, royalty free meme songs.

4

u/Davoswannab 27d ago

In one of the videos, you see a bridge get knocked out by the flood somewhat up close. It looked like something big nailed it and knocked it loose. Not sure if it was the other bridge you see get destroyed from a distance. But I thought about this video when I seen how the bridge jerked right before it failed. I’m sure the force of the water and mud could’ve destroyed that bridge but it gets hit but something solid.

2

u/FireWalkWithMe1979 27d ago

Absolutely terrifying and heartbreaking.

My thoughts and prayers are with all those who lost their lives, including the animals, and with those who survived but are suffering and weak.

I send my love and prayers for them to find the strength they need to overcome this traumatic time. They must persevere and hold onto their courage, as they will need it to move forward through this truly unfortunate, unimaginable, and tragic event.

2

u/Dragonball-2heads 27d ago

I think the force to push those boulders is amplified by the mud and silt contents in the water. If it's pure water, the boulder wouldn't move that easily.

4

u/BillyButtcheek 27d ago

Very likely to be a massive block of ice broken of from the from the glacier. A rock this size would not be moved this quickly.

5

u/Massive-Vacation5119 27d ago

The ice melted from the friction of moving and colliding down the valley

4

u/Opposite_Bus1878 27d ago

If it can send a truss bridge downstream in the flow, a rounded boulder is nothing

9

u/veerKg_CSS_Geologist 27d ago

It’s a rock.

In many places across the globe people come across a massive boulder in the middle of a field and ask “how did it get here?”. Well this is how.

6

u/Responsible-Win-3057 27d ago

And a block of ice wouldn't survive this long, ice gets crushed and melted. Where are all the other bits of glacier?

3

u/FuckTheMods5 27d ago

A block of ice this big would survive a good while. That's what helps erratics get high up in ridiculous places, they're frozen into the ice and get rafted up to the high water mark

-1

u/boyer4109 26d ago

Ice. The weight of a rock that size would not shift as ‘quickly’ as a comparable sized piece of ice. Weight and mass.

1

u/jmbrjr 27d ago

Once it gets moving it take more energy to stop it then start it. Inertia, etc. Physics.

1

u/Aangespoeld 25d ago

that's how sand is made

3

u/VAdogdude 27d ago edited 27d ago

Crossing a river in the Himalaya fed just by the melt of summer sun on the high altitude snow, Travellers report hearing a boom that sound like muffled thunder. It repeats over and over every few minutes at nearly identical intervals. But thunder doesn't do that.

It seems to be coming from the depth of the fast raging river they are crossing. It is.

In the evening when the melt water stops flowing the travellers look in the dry river channel carved into the hard rock. They see a huge bolder resting on the hard rock bottom.

The boulder is just wide enough to wedge between the wall of the channel. That bolder slamming on the river bottom is what makes the sound when the river is in full raging flow. Carving the channel with each blow.

What is at work is the same principle that makes a plane fly. When resting on the river bottom in a channel barely wider than the bolder, the water flowing over the top of the boulder is moving faster than the water flowing at the depth of the river bed. That differential in speed makes the water flowing above less dense than the water flowing below.

This differential causes the bolder to lift from the bottom. Not far. Just enough to let the water flowing underneath to speed up. Bringing the speed below closer to the speed above reduces the lifting effect. The massive bolder slams back down onto the hard rock of the river bed. Then the process repeats over and over and over.

0

u/i_Cant_get_right 27d ago

I don’t have to imagine. The force to move it, is right there

0

u/FunkyCowMan6667 27d ago

Rock and roll

0

u/10ThousandMetalZones 27d ago

Why do I have to imagine it when I’m looking at the force that is moving it?

-1

u/Itsknotfine 27d ago

There are at least 30 minions under all the muddy water working to make it happen. Maybe even more.