Re:Vertiwalk Vertical Walking
by qbasic_forever on Friday November 19, 2021 @11:06PM
(#29285471)
You do the same thing with prusiks to ascend a rope. Here's an example of a practical application, getting out a crevasse when climbing glaciers: https://www.youtube.com/watch?v=px_m3qzHYTA
In an alpine scenario you'd descend by rappelling. I doubt folks in a home want to setup a munter hitch or similar though. :)
I hope I never have to use this. Knowing myself, I'd typo the knot and fall to my death.
Re:Vertiwalk Vertical Walking
by fingerlocks on Saturday November 20, 2021 @12:15AM
(#29285768)
This is how it’s taught in intro mountaineering courses. In the real world experienced alpinists carry a lightweight ascender, like a Micro Traction or similar, that can also be used for other tasks like hauling or fall protection for simul-leading.
Is that essentially a one way rachet? All you need to climb easily is prevention of regress and maybe some mechanical advantage, right?
Re:Vertiwalk Vertical Walking
by sandworm101 on Saturday November 20, 2021 @08:16AM
(#29287802)
It is a bit more complex. Climbing means falling. The 'ratchet' needs to work under shock loads. And wet/ice ropes radically change the friction numbers. There is a reason why climbers, experienced ones, know and use a great many different tricks for accending and decending ropes. A "big wall" climber can make a belay device out of almost anything, or even nothing.
Re:Vertiwalk Vertical Walking
by hprotagonist on Saturday November 20, 2021 @08:37AM
(#29287946)
like your hip!
“The leader must not fall.”
Re:Vertiwalk Vertical Walking
by qbasic_forever on Saturday November 20, 2021 @12:02PM
(#29289776)
Aid climbing: https://en.wikipedia.org/wiki/Aid_climbing It's using techniques like that to go up rock walls instead of free climbing the rock holds.
Re:Vertiwalk Vertical Walking
by fingerlocks on Saturday November 20, 2021 @04:20AM
(#29286656)
Yes
I see. I tried to watch one video but they spent most of the time explaining how to create the rope/knots. I had assumed you eventually resorted to your arm strength to ratchet up the line. It does look like standing to ascend.
Re:Vertiwalk Vertical Walking
by ricardobeat on Saturday November 20, 2021 @05:49AM
(#29286966)
The overdubbing in this video is creepy, like these auto-generated voiceover videos. Why show peoples faces over completely different narration?
Re:Vertiwalk Vertical Walking
by MauranKilom on Saturday November 20, 2021 @07:15AM
(#29287428)
...because they didn't narrate in English?
Subtitles are a thing
There's also a mechanical version of a prusik called an "ascender." That's what I think this thing basically is.
Re:Vertiwalk Vertical Walking
by throwawaygh on Saturday November 20, 2021 @11:21AM
(#29289397)
> Descending is a bit challenging for my brain to understand.
You would typically descend by rappelling, but it is possible to descend using two prussiks:
1. weight prussik B / unweight prussik A
2. slide prussik A down
3. weight prussik A / unwieght prussik B
4. slide prussik B down
5. repeat
I've never seen this done with two prussiks, but a similar sort of thing is done with two ascenders when rope soloing (e.g., to practice a single move over and over without re-rigging each time).
The video for the Vertiwalk looks to me more like standing and sitting in order to ascend.
In standing the seat climbs up a bit to follow your bum, when sitting the floor climbs up a bit to raise your legs into a seated position.
Descending is a bit challenging for my brain to understand.