6 ms·

In case you haven't already seen Tom Scott's video about it: https://youtu.be/mCSUmwP02T8 https://youtu.be/mCSUmwP02T8 .

by joncp 4y ago

kQq9oHeAz6wLLS 4y ago
It's embedded in TFA
- xeromal 4y ago
  The fucking article?
  - noSyncCloud 4y ago
    The featured article.
    - xeromal 4y ago
      Oh, haha. Thanks.
    - TylerE 4y ago
      Yeah, and you read the fine manual. Sure.
      - leaflets2 4y ago
        I read the Fantastic manual
scubakid 4y ago
It doesn't look particularly fast-moving, so I must be missing something here that accounts for the legendary 100% mortality rate. Unless there's a giant vortex of electric eels, this stretch of water looks tamer than what those extreme kayakers were up to in HBO's recent docuseries.
- toss1 4y ago
  What you are missing is that this is an extremely complex version of a drowning machine — very good read here [0]. Under the water is turbulence that just traps a person and keeps them tumbling underwater. In addition the article points out that there are numerous rock outcroppings underwater against which an unfortunate person's head would likely get bashed, reducing or eliminating consciousness. I also notice that the water is quite frothy and full of air bubbles. This reduces it's net density and thus reduces the buoyancy available to any objects that would otherwise float. It can be enough to sink ships [1]. So, basically, the turbulent water will pull you under, bash you hard against the rocks, give you less-than-normal buoyancy, and hold you under. It's kind of a toss-up whether you lose consciousness first from the head injuries or the lack of air, and after a few minutes of that, you're dead. Have a nice afterlife [0] https://practical.engineering/blog/2019/3/16/drowning-machine-the-dangers-of-low-head-dams https://practical.engineering/blog/2019/3/16/drowning-machin... [1] https://www.newscientist.com/article/dn1350-bubbling-seas-can-sink-ships/ https://www.newscientist.com/article/dn1350-bubbling-seas-ca...
- deleted 4y ago
  [deleted]
- graeme 4y ago
  I heard it described as follows: the full force of the river you see upstream has been turned on its side and the current goes down. You can’t pull against that, especially against curved, mossy, wet rocks So as if an elephant were pulling you down beneath the water and you only had your strength to grip against it. Can’t be done.
  - andrewflnr 4y ago
    What I don't understand is how that works from a conservation of mass perspective. The water can't be literally flowing down at every point and keep a stable surface. I assume it's something more complicated, right.
    - steve_adams_86 4y ago

In case you haven't already seen Tom Scott's video about it: https://youtu.be/mCSUmwP02T8 https://youtu.be/mCSUmwP02T8 .

by joncp 4y ago

In case you haven't already seen Tom Scott's video about it: https://youtu.be/mCSUmwP02T8 https://youtu.be/mCSUmwP02T8 .

kQq9oHeAz6wLLS 4y ago

It's embedded in TFA

xeromal 4y ago
The fucking article?
- noSyncCloud 4y ago
  The featured article.
  - xeromal 4y ago
    Oh, haha. Thanks.
  - TylerE 4y ago
    Yeah, and you read the fine manual. Sure.
    - leaflets2 4y ago
      I read the Fantastic manual

scubakid 4y ago

It doesn't look particularly fast-moving, so I must be missing something here that accounts for the legendary 100% mortality rate. Unless there's a giant vortex of electric eels, this stretch of water looks tamer than what those extreme kayakers were up to in HBO's recent docuseries.

toss1 4y ago
What you are missing is that this is an extremely complex version of a drowning machine — very good read here [0]. Under the water is turbulence that just traps a person and keeps them tumbling underwater. In addition the article points out that there are numerous rock outcroppings underwater against which an unfortunate person's head would likely get bashed, reducing or eliminating consciousness. I also notice that the water is quite frothy and full of air bubbles. This reduces it's net density and thus reduces the buoyancy available to any objects that would otherwise float. It can be enough to sink ships [1]. So, basically, the turbulent water will pull you under, bash you hard against the rocks, give you less-than-normal buoyancy, and hold you under. It's kind of a toss-up whether you lose consciousness first from the head injuries or the lack of air, and after a few minutes of that, you're dead. Have a nice afterlife [0] https://practical.engineering/blog/2019/3/16/drowning-machine-the-dangers-of-low-head-dams https://practical.engineering/blog/2019/3/16/drowning-machin... [1] https://www.newscientist.com/article/dn1350-bubbling-seas-can-sink-ships/ https://www.newscientist.com/article/dn1350-bubbling-seas-ca...
deleted 4y ago
[deleted]
graeme 4y ago
I heard it described as follows: the full force of the river you see upstream has been turned on its side and the current goes down. You can’t pull against that, especially against curved, mossy, wet rocks So as if an elephant were pulling you down beneath the water and you only had your strength to grip against it. Can’t be done.
- andrewflnr 4y ago
  What I don't understand is how that works from a conservation of mass perspective. The water can't be literally flowing down at every point and keep a stable surface. I assume it's something more complicated, right.
  - steve_adams_86 4y ago