Suspended jaccuzzi(jaccuzzi.ch)
jaccuzzi.ch
Suspended jaccuzzi
http://jaccuzzi.ch/html/affichjacc_264_e.html
108 comments
Are the side walls of the bridge specified to take directional load like that?
Spectacularly dumb idea to hang that much weight (6 Tons!?) from the top of those walls. Those walls are clearly meant for vertical loads. And a much better option (if you feel you have to do this) was available so I really don't understand what made them choose this particular setup. Anybody with an ounce of structural engineering knowledge would have looped the cables through the drainage ports.
Right now this looks like a Darwin award candidate. They're very lucky that those walls contained enough rebar vertically to withstand this load, it's at the worst possible attachment point and at the worst possible angle (especially for the inner wall).
Edit: looking more closely at the picture it seems as though the cables under tension are actually running through the drainage ports of the back wall, the ropes at the top seem slack or loaded both top and bottom of the opposite so there is in fact mostly compressive load on the front wall and about 50% of sideways load on the opposing wall. Still, that structure was definitely not meant to be loaded like this.
Right now this looks like a Darwin award candidate. They're very lucky that those walls contained enough rebar vertically to withstand this load, it's at the worst possible attachment point and at the worst possible angle (especially for the inner wall).
Edit: looking more closely at the picture it seems as though the cables under tension are actually running through the drainage ports of the back wall, the ropes at the top seem slack or loaded both top and bottom of the opposite so there is in fact mostly compressive load on the front wall and about 50% of sideways load on the opposing wall. Still, that structure was definitely not meant to be loaded like this.
Yeah, in this picture you can see the cables running through the drainage port:
http://jaccuzzi.ch/photos/700/1754_264_seb_7_.jpg
So I "think" most of the load would be applied vertically, but that would be my biggest concern still.
So I "think" most of the load would be applied vertically, but that would be my biggest concern still.
This image best shows how they did it - http://jaccuzzi.ch/photos/700/1758_264_seb_11_.jpg - they looped the ropes over the top of the sides on both sides, suspending the platform directly under the bridge so there shouldn't have been any sideways force.
Still seems a bit stupid to put that much additional load on a 70 year old pedestrian bridge though.
Still seems a bit stupid to put that much additional load on a 70 year old pedestrian bridge though.
This bridge was most likely not constructed as a pedestrian bridge. What you see in the back probably is the bridge that replaced this one when a one way bridge did not provide enough capacity anymore and the old bridge was re-purposed as a passenger and probably cyclist bridge.
Based on that it was definitely built for higher load than just a few pedestrians.
Edit: The German language Wikipedia article actually confirms this [1]. It states that the bridge was built for a traffic load of 13 tons and that the new bridge was built in 1993 to increase capacity. The old bridge was thoroughly renovated after the new bridge had been constructed. The bridge actually is well documented and is under protection as an architectural landmark. It was exhibited in the MoMA for a long time.
Based on the amount of prep these guys put into this and the available documentation I don't see why they should not have checked if what they wanted to do is possible.
[1] http://de.wikipedia.org/wiki/Pont_de_Gueuroz
Edit 2: Some fascinating pictures from the time of construction: http://www.swiss-timber-bridges.ch/detail/193
Based on that it was definitely built for higher load than just a few pedestrians.
Edit: The German language Wikipedia article actually confirms this [1]. It states that the bridge was built for a traffic load of 13 tons and that the new bridge was built in 1993 to increase capacity. The old bridge was thoroughly renovated after the new bridge had been constructed. The bridge actually is well documented and is under protection as an architectural landmark. It was exhibited in the MoMA for a long time.
Based on the amount of prep these guys put into this and the available documentation I don't see why they should not have checked if what they wanted to do is possible.
[1] http://de.wikipedia.org/wiki/Pont_de_Gueuroz
Edit 2: Some fascinating pictures from the time of construction: http://www.swiss-timber-bridges.ch/detail/193
> NB: This bridge doesn't exist any more
That's weird. It definitely looks like it is the same bridge but that page says it has been removed.
The construction clearly shows a concrete bridge in the making (lots of concrete forms visible) whereas the heading of the page is 'Swiss timber bridges'.
That's weird. It definitely looks like it is the same bridge but that page says it has been removed.
The construction clearly shows a concrete bridge in the making (lots of concrete forms visible) whereas the heading of the page is 'Swiss timber bridges'.
as far as i understand it the timber bridge was the temporary bridge used to support the construction and then torn down after the concrete bridge was completed.
Ah yes, it's labelled 'falsework', so the wooden structure is indeed just to support the main structure until it can be self supporting.
> ...platform directly under the bridge so there shouldn't have been any sideways force.
No net sideways force. Any +X force on the left wall will have a -X force on the right wall. If there's a tension T in the ropes across the top they'll be pulling the walls inward with a force of T causing a torque of T*height.
No net sideways force. Any +X force on the left wall will have a -X force on the right wall. If there's a tension T in the ropes across the top they'll be pulling the walls inward with a force of T causing a torque of T*height.
> If there's a tension T in the ropes across the top they'll be pulling the walls inward with a force of T causing a torque of T*height.
Almost, you'd still have to subtract the friction component across the 90 degree angle where the cable hangs down from the edge near the porthole but that's probably relatively small compared to the total (depends on cable material and any kind of padding they put in between the cable and the concrete).
It would have been a lot better to sling those cables through the portholes on both sides and to make it loop the bridge, one person would have to rappel down to get that started but you'd have zero load on the walls.
The longer I think about this the more I think those guys and girls were extremely lucky and I hope that this will not inspire any copycats to try this with other bridges or even the same one. It's a long way down.
Almost, you'd still have to subtract the friction component across the 90 degree angle where the cable hangs down from the edge near the porthole but that's probably relatively small compared to the total (depends on cable material and any kind of padding they put in between the cable and the concrete).
It would have been a lot better to sling those cables through the portholes on both sides and to make it loop the bridge, one person would have to rappel down to get that started but you'd have zero load on the walls.
The longer I think about this the more I think those guys and girls were extremely lucky and I hope that this will not inspire any copycats to try this with other bridges or even the same one. It's a long way down.
I prefer to live in a frictionless world :) It looks like it was rope on metal (http://jaccuzzi.ch/photos/700/1722_264_03.jpg) with a coef. of friction of 0.2. My gut says the friction force will be at most half horizontal. That puts friction an order of magnitude lower than T, though that is more than I expected. (edit: damn, it rounds the corner from vertical to past horizontal so my symmetry argument doesn't quite hold.)
Apparently the bridge carried cars at one point (http://en.wikipedia.org/wiki/Gueuroz_Bridge) so the wall was rated for vehicle impacts, which is good.
Why they went over the top of the walls I don't know, I think they wanted to measure the ropes exactly instead of adjusting it the day of. Like, that was where they drew the line of "unacceptable risk"? I agree a loop through the drain holes would have made their lives easier in a bunch of ways, except the tripping hazard would have made it a very risky project...
Apparently the bridge carried cars at one point (http://en.wikipedia.org/wiki/Gueuroz_Bridge) so the wall was rated for vehicle impacts, which is good.
Why they went over the top of the walls I don't know, I think they wanted to measure the ropes exactly instead of adjusting it the day of. Like, that was where they drew the line of "unacceptable risk"? I agree a loop through the drain holes would have made their lives easier in a bunch of ways, except the tripping hazard would have made it a very risky project...
> I prefer to live in a frictionless world :)
Spherical cows look so much nicer too ;)
Spherical cows look so much nicer too ;)
I doubt it's any more load than the bridge sees during a rainstorm.
The bridge is 168.36m long and (I guess) about 2m wide. If there was 1" deep water all the way along that'd be about 10 tons of loading. But that'd be distributed along the entire length of the bridge, not concentrated at a point in the middle...
To be fair those walls were designed to take horizontal wind loads, too. 100mph wind translates to 0.17psi[0] which is ~220 lbs/square yard (of course you assume the force happens halfway up, not at the top of the wall!) If the ropes were spread out over 5 yards then that span should hold ~1500lbs against the face of the wall.
If that thing weighed 6 tons they may have made it out of the "designed to handle" range and into the "safety factor" range of inward forces on those walls. Surely those drainage ports weren't designed to handle upward loads?
I really can't believe some of them took their harnesses off while in the pool.
[0] - https://www.physicsforums.com/threads/wind-speed-100mph-to-p...
If that thing weighed 6 tons they may have made it out of the "designed to handle" range and into the "safety factor" range of inward forces on those walls. Surely those drainage ports weren't designed to handle upward loads?
I really can't believe some of them took their harnesses off while in the pool.
[0] - https://www.physicsforums.com/threads/wind-speed-100mph-to-p...
No, but they are designed to take a lateral load from a vehicle impacting them. In the US currently that load is about 4.5 tons at any one point. In a bridge like this where the parapet walls are an integral part of the structure, that would likely not be the limiting case and the walls would be even stronger than that.
Some more evidence that they had considered these things would have been nice, but civil structures are quite a bit stronger than people here seem to be giving them credit for. For example, the vertical design load from people walking on a bridge like this is something like 100 lb/ft^2. Meaning the bridge is designed to hold one jacuzzi every 10 or 15 feet, depending on how wide it is.
Some more evidence that they had considered these things would have been nice, but civil structures are quite a bit stronger than people here seem to be giving them credit for. For example, the vertical design load from people walking on a bridge like this is something like 100 lb/ft^2. Meaning the bridge is designed to hold one jacuzzi every 10 or 15 feet, depending on how wide it is.
I thought the same thing.
It seems like it would have been a better idea to bring the cables/ropes in through the hole at the bottom of the wall, rather than over the top. The lateral compressive load would then have been taken up by the bridge itself, rather than the walls.
It seems like it would have been a better idea to bring the cables/ropes in through the hole at the bottom of the wall, rather than over the top. The lateral compressive load would then have been taken up by the bridge itself, rather than the walls.
Exactly. Really really dumb this.
To make it even worse ropes go over top of second side wall.
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Their other project, jacuzzi on the Mont Blanc (highest summit of the alps) is equally crazy: http://jaccuzzi.ch/index_e.html
20 sweaty alpinists in one tub :)
20 sweaty alpinists in one tub :)
I noticed the other people hanging about on the summit of Mont Blanc looking slightly miffed - not sure if this is because they are unhappy at finding a party on what they were expecting to be a peaceful mountain top or disappointed that they aren't getting an invite to join in!
> not sure if this is because they are unhappy at finding a party on what they were expecting to be a peaceful mountain top o
I may sound like a hater, but I would certainly understand the frustration of those having climbed Mont Blanc only to find a bunch of party-people in there (if that really was the case for their looks).
And a serious question: How do these people have money and especially free time for this?
Later edit: Before people start down-voting me, I found this comment of a guy who was among the "other" people on the top of Mont Blanc (meaning he was not invited to the jacuzzi party). He pretty much disapproves of it all, with quite good reasons (text is in French):
> Me trouvant avec mes deux clients au sommet du Mt Blanc ce 13 septembre, je ne peut que vous faire part de notre consternation devant la débauche de bruit et d'agitation ridicule qui polluait l'endroit ce jour-là. Est-ce paraître pisse froid que de ne pas partager votre enthousiasme pour cette réalisation qui contribue à rabaisser un sommet majeur au rang d'exutoire de nos névroses et théatre de nos délires les plus vains ? En a t-il subi, ce pauvre Mont Blanc, des idées absurdes : la tentative de descente en voiture, celle en poële à paella, une autre en VTT et j'en passe. Victime d'égos surdimmensionnés, les sommets phares sont chaque jour dévoyés par des personnes donnant de l'alpinisme une image aberrante (CF la tentative de l'ascension de l'Everest...en short ! Vous y verra-t-on bientôt en mailot de bain ?).Promotion dont nous nous passerions bien à l'heure ou nos effort tendent à rendre à ces montagnes leur véritable statut. Mes clients n'avaient-ils pas le droit de jouir au terme d'un effort que vous avez vécu, d'un sommet conforme ou presque à leur idéal ? Il me semble que cette façon de s'approprier un lieu au mépris des nuissances causées à l'égard des autres personnes qui le fréquente, celà sans autre objectif que de s'offrir un délire de potaches se situe à la limite del'incivilité. Salutations. Denis Crabieres, guide de montagne, secrétaire du syndicat national des guides de montagne
I may sound like a hater, but I would certainly understand the frustration of those having climbed Mont Blanc only to find a bunch of party-people in there (if that really was the case for their looks).
And a serious question: How do these people have money and especially free time for this?
Later edit: Before people start down-voting me, I found this comment of a guy who was among the "other" people on the top of Mont Blanc (meaning he was not invited to the jacuzzi party). He pretty much disapproves of it all, with quite good reasons (text is in French):
> Me trouvant avec mes deux clients au sommet du Mt Blanc ce 13 septembre, je ne peut que vous faire part de notre consternation devant la débauche de bruit et d'agitation ridicule qui polluait l'endroit ce jour-là. Est-ce paraître pisse froid que de ne pas partager votre enthousiasme pour cette réalisation qui contribue à rabaisser un sommet majeur au rang d'exutoire de nos névroses et théatre de nos délires les plus vains ? En a t-il subi, ce pauvre Mont Blanc, des idées absurdes : la tentative de descente en voiture, celle en poële à paella, une autre en VTT et j'en passe. Victime d'égos surdimmensionnés, les sommets phares sont chaque jour dévoyés par des personnes donnant de l'alpinisme une image aberrante (CF la tentative de l'ascension de l'Everest...en short ! Vous y verra-t-on bientôt en mailot de bain ?).Promotion dont nous nous passerions bien à l'heure ou nos effort tendent à rendre à ces montagnes leur véritable statut. Mes clients n'avaient-ils pas le droit de jouir au terme d'un effort que vous avez vécu, d'un sommet conforme ou presque à leur idéal ? Il me semble que cette façon de s'approprier un lieu au mépris des nuissances causées à l'égard des autres personnes qui le fréquente, celà sans autre objectif que de s'offrir un délire de potaches se situe à la limite del'incivilité. Salutations. Denis Crabieres, guide de montagne, secrétaire du syndicat national des guides de montagne
I understand the feeling, but I can't help seeing an undercurrent of "please don't make the mountain look easy/fun/silly or all the macho sunday-mountaineer stockbrokers who pay me won't want to climb anymore"
We got the same flack from the guides (and the police, but that was fair TBH) when we did the massive paragliding group landing summer 2012
We got the same flack from the guides (and the police, but that was fair TBH) when we did the massive paragliding group landing summer 2012
I imagine he probably wants a rule introduced to make it compulsory to hire guides to carry your jacuzzi to the top of any mountain :-)
[NB I am biased by personally being quite miffed at the protectionism of French ski instructors]
[NB I am biased by personally being quite miffed at the protectionism of French ski instructors]
Oh god don't get me started on the ESF... That's a classic cartel if there is one. Did you know that they don't let you keep the wages you own? All the money is pooled and then split at the end of the season according to seniority and number of hours. What a scam.
Not that I don't agree with the higher standards required - in other alpine countries you see a lot of anglo-saxon "instructors" who clearly wouldn't be able to pass the tests.
Not that I don't agree with the higher standards required - in other alpine countries you see a lot of anglo-saxon "instructors" who clearly wouldn't be able to pass the tests.
Well, personally I'm miffed about the banning of ski hosting - where they are very careful not to give instruction but it's great to have someone take you round and book restaurants etc.
Having said that, I know of one large French ski area that seems OK with it but I won't say which one it is... :-)
Having said that, I know of one large French ski area that seems OK with it but I won't say which one it is... :-)
Here's the Google Translate to save others the trip:
Finding myself with my two clients to the summit of Mont Blanc on September 13, I can only share with you our dismay at the sound of debauchery and ridiculous agitation that was polluting the place that day. Is it seem colder than piss do not share your enthusiasm for this achievement that contributes to belittle a major summit to the rank of outlet for our neuroses and theater of our most vain delusions? As he suffered, the poor Mont Blanc, absurd ideas: the attempt to drive down, the stove in paella, another mountain bike and so on. Victim of egos surdimmensionnés, headlights summits every day misguided by people giving mountaineering aberrant image (CF attempt to climb Everest in shorts ...! You will soon do we see bathing Mailot?). Promotion which we would move us well on time or our efforts tend to make their true status in these mountains. My clients had they not entitled to enjoy after a strain that you experienced, a consistent top or near their ideal? It seems to me that this way of taking a place in defiance of nuisances caused against others who frequent it, it no other purpose than to provide a delirium of schoolboys del'incivilité is at the limit. Greetings. Denis CRABIERES, mountain guide, secretary of the National Union of Mountain Guides
Finding myself with my two clients to the summit of Mont Blanc on September 13, I can only share with you our dismay at the sound of debauchery and ridiculous agitation that was polluting the place that day. Is it seem colder than piss do not share your enthusiasm for this achievement that contributes to belittle a major summit to the rank of outlet for our neuroses and theater of our most vain delusions? As he suffered, the poor Mont Blanc, absurd ideas: the attempt to drive down, the stove in paella, another mountain bike and so on. Victim of egos surdimmensionnés, headlights summits every day misguided by people giving mountaineering aberrant image (CF attempt to climb Everest in shorts ...! You will soon do we see bathing Mailot?). Promotion which we would move us well on time or our efforts tend to make their true status in these mountains. My clients had they not entitled to enjoy after a strain that you experienced, a consistent top or near their ideal? It seems to me that this way of taking a place in defiance of nuisances caused against others who frequent it, it no other purpose than to provide a delirium of schoolboys del'incivilité is at the limit. Greetings. Denis CRABIERES, mountain guide, secretary of the National Union of Mountain Guides
So basically......damn those people who make this look easy and make our super macho profession look silly? I honestly don't think these are good reasons.
I'm sure there's lots lost in translation, but what I got out of it was more in the area of feeling that the sanctity of the mountain (in a religion-of-nature manner) was violated by "heretics".
And a serious question: How do these people have money and especially free time for this?
Doesn't seem to be that costly, especially since they reuse the equipment. As for the time, they probably just take vacation days.
Doesn't seem to be that costly, especially since they reuse the equipment. As for the time, they probably just take vacation days.
How about hot tub in the Vatican? Is that inappropriate? It's a fun exercise to list the worst places where you might unexpectedly encounter a tub full of nearly naked drunk Europeans.
[deleted]
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Translation: harrumph!
> How do these people have money and especially free time for this?
As opposed to mountain climbing at all? Or any endurance sport? Or commenting on internet forums? Or hobby computing?
Please show us your math on the amount of time and money spent on this versus being a marathon runner or an open-source contributor.
De gustibus non est disputandum.
As opposed to mountain climbing at all? Or any endurance sport? Or commenting on internet forums? Or hobby computing?
Please show us your math on the amount of time and money spent on this versus being a marathon runner or an open-source contributor.
De gustibus non est disputandum.
> And a serious question: How do these people have money and especially free time for this?
That this is a serious question shows how sad the world we're living in is.
That this is a serious question shows how sad the world we're living in is.
or because they'd been training for 6 months to make the big climb and they were suddenly confronted with the fact that for these guys it's so easy they brought a jacuzzi up with them ;)
[deleted]
Reminded me of extreme ironing :) https://www.google.com/search?q=extreme+ironing&tbm=isch
Some of those pictures give me vertigo, something I'm not normally sensitive to. That's on par with 'wetriffs'.
I like that they're all wearing helmets while in the jacuzzi. Because, you know, it would be completely irresponsible not to. (They're probably more worried about knocking a helmet off the side by accident, if they were taken off, than the utility of wearing a helmet should the cables holding the jacuzzi break.)
The reason is that there are lots of people on the edge of the cliff fiddling around with carabiners and other bits of gear and it's quite easy to drop one by accident. Being hit by a lump of metal is pretty unpleasant. Climbing helmets are designed to divert glancing blows from falling objects, not save you from falling.
Often with sports climbing you'll see the person belaying (at the bottom holding the rope) wearing a helmet, while the person half way up the climb isn't - the risk is the climber will drop something on the person at the bottom.
Often with sports climbing you'll see the person belaying (at the bottom holding the rope) wearing a helmet, while the person half way up the climb isn't - the risk is the climber will drop something on the person at the bottom.
One can't image how hard a small little object falling from a few dozen meters can hit you. That's what the helmets are for ;)
The helmets may be worn to protect from objects falling from above.
It looks like they all have safety harnesses/ropes. I'd be glad to be wearing a helmet if my jacuzzi were to suddenly drop out from under me.
The real issue is that a jacuzzi full of water weights a lot. The bridge is not designed for holding such a large load on the edge. A helmet won't help you for this, and a harness and rope attached to the bridge at the same point as the jacuzzi may not either.
I would assume this was to protect against falling champagne flutes.
Before I clicked this, I thought 'suspended jaccuzzi' was the name of a startup.
I assumed 'jaccuzzi' was some sort of new programming language or framework that I missed out on, and that "suspended" was referring to a specific implementation clearly superior to non-suspended jaccuzzi ;)
Well to be honest, even though it is not a programming language, I would argue that this jacuzzi implementation is clearly superior to a non-suspended jacuzzi.
Conventional Jacuzzi is much more amenable to static analysis. And just look at the startup time!
But I'll admit: these folks know how to scale.
But I'll admit: these folks know how to scale.
I thought 'suspended jacuzzi' would have been the name of a IDM musical duo.
Me too, I thought it was a startup called Jacuzzi that had just been kicked out of China.
China is .cn, .ch is Switzerland,
Indeed. It's .ch because that's the initialism of the Latin name for Switzerland: Confoederatio Helvetica.
The Latin name is used to avoid favouring any one of the four official languages (German, French, Italian, Romansch).
The Latin name is used to avoid favouring any one of the four official languages (German, French, Italian, Romansch).
This reminds me of the article on bullshitting the other day. On the one hand this is useless play time that wastes resources. But it's also quite a big project. Everybody who took part in planning and executing it gained a lot of experience in project planning and management, the dynamics of working with people, how to work with their peers.
No matter what random challenge tomorrow brings this group of people is probably better equipped to deal with it than most social groups who have never tackled anything like this together. Of course they may not be great at handling the mundane, and that might be what drives them to hang jacuzzis off bridges.
No matter what random challenge tomorrow brings this group of people is probably better equipped to deal with it than most social groups who have never tackled anything like this together. Of course they may not be great at handling the mundane, and that might be what drives them to hang jacuzzis off bridges.
Those are some high spirited friends, wish you could order them in mail just like that. But anyway, what about the permissions, is everyone going to start doing this now?
With the amount of effort clearly involved in such an operation, I think it is fairly safe to say that no, everyone is not going to start doing this now.
Until someone decides it's time to dirsupt the jaccuzzi industry and starts a bridge-breaking start-up.
It's all about scale.
they also did one on top of Mont Blanc (highest mountain of Europe): http://jaccuzzi.ch/html/affichjacc.php?id=112 and inside a cave where you need to dive to reach the spot:
http://jaccuzzi.ch/html/affichjacc.php?id=171
MB is not highest mountain in Europe, but in EU.
I didn't realise this. However, it would seem that it isn't as clear cut as you suggest:
(From Wikipedia):
The generally accepted highest summit is Mount Elbrus (5,642 m or 18,510 ft) in the Caucasus, appearing on both the Bass and Messner lists. However, because the location of the boundary between Asia and Europe is not universally agreed upon, its inclusion in Europe is disputed: if the Kuma–Manych Depression is used as geological border between Asia and Europe, Caucasus and Elbrus lie wholly in Asia. If the Greater Caucasus watershed is used instead, Elbrus' peaks are wholly in Europe, albeit close to the border with Asia. Mont Blanc (4,810 m or 15,781 ft), lying on the border between France and Italy in the Graian Alps, is seen by some to be the highest mountain in Europe.
(From Wikipedia):
The generally accepted highest summit is Mount Elbrus (5,642 m or 18,510 ft) in the Caucasus, appearing on both the Bass and Messner lists. However, because the location of the boundary between Asia and Europe is not universally agreed upon, its inclusion in Europe is disputed: if the Kuma–Manych Depression is used as geological border between Asia and Europe, Caucasus and Elbrus lie wholly in Asia. If the Greater Caucasus watershed is used instead, Elbrus' peaks are wholly in Europe, albeit close to the border with Asia. Mont Blanc (4,810 m or 15,781 ft), lying on the border between France and Italy in the Graian Alps, is seen by some to be the highest mountain in Europe.
I'm from Europe and this is news to me. The caucasus isn't in Europe, you know?
"The Caucasus or Caucasia is a region at the border of Europe and Asia"
"It is home to the Caucasus Mountains, which contain Europe's highest mountain, Mount Elbrus"
http://en.wikipedia.org/wiki/Caucasus
NB I've always thought of Europe stopping at the Urals, the Caucasus and the Bosphorus.
"It is home to the Caucasus Mountains, which contain Europe's highest mountain, Mount Elbrus"
http://en.wikipedia.org/wiki/Caucasus
NB I've always thought of Europe stopping at the Urals, the Caucasus and the Bosphorus.
The question that keeps running through my head -- how do you get back up onto the bridge, once you've left the jacuzzi?
Pulled up by winch?
Hand over hand climbing (ouch) or manually but assisted by equipment (e.g., I can imagine one-way sliders on the rope that'd let you climb with leg power)?
I did my share of rappelling when I was a teenager, but never had to climb back up the way I'd come with nothing but the rope....
Pulled up by winch?
Hand over hand climbing (ouch) or manually but assisted by equipment (e.g., I can imagine one-way sliders on the rope that'd let you climb with leg power)?
I did my share of rappelling when I was a teenager, but never had to climb back up the way I'd come with nothing but the rope....
Ascending single or double ropes is most often practiced in rope access, tree climbing, caving or technical climbing. Ascending a single rope will often involve a Jumar [1] and a camming device placed on your foot or chest. Ascending a doubled rope can be done with just the rope using Blake's hitch or some extra material and a Prusik knot.
[1]: http://en.wikipedia.org/wiki/Ascender_(climbing)
[1]: http://en.wikipedia.org/wiki/Ascender_(climbing)
Such imagined one-way leg powered rope sliders exist[1]!
They work well, but surely would be tiring and—after exiting a jacuzzi into a windy void—I'd have to imagine quite cold.
1. http://en.m.wikipedia.org/wiki/Ascender_%28climbing%29
1. http://en.m.wikipedia.org/wiki/Ascender_%28climbing%29
You don't actually need the hardware -very similar results can be achieved using a spare piece of rope and a prussic knot*.
((I really hope I got the knot name right.))
((I really hope I got the knot name right.))
Prusik knots are difficult to push up a rope, but there is a simple improvement you can do using a carabiner: https://www.google.com/search?&q=bachmann+hitch&tbm=isch
That's extremely pleasing -thank you :)
Certainly! (And you have the knot right). It would likely be a bit more tiring/challenging for beginners though.
True, but using actual ascenders is so much quicker and easier than doing it with prusik knots.
Very true -I guess the point I was trying to make is that if you find yourself at the bottom of a rope _without_ an ascender to hand, all hope is not lost. (though admittedly, I'd probably need a working internet connection to be able to remember how to tie a prussic ;) )
I applaud their chutzpah. However, my crew would not be wearing swimsuits!
I don't think I could bear to take off my harness, though. Getting clothing off would be a conundrum... either that or a very cold descent.
I don't think I could bear to take off my harness, though. Getting clothing off would be a conundrum... either that or a very cold descent.
Relevant Mr Bean link: https://www.youtube.com/watch?v=3smh7055cTQ
I was thinking that. Whats the point of doing all that rigging just to leave your trunks on.
Might get some serious nylon burn though, as you say.
Might get some serious nylon burn though, as you say.
cut the clothing off, while you're in the harness.
Ah, humans. What will they think of next?
What about hot air balloon jaccuzzi?
Good luck lifting 6 tons with a hot air balloon. (That's what this contraption weighs). Even a small one would be out. A four person hot air balloon can lift about 1 ton max, including all the gear, gas, burners etc. That leaves very little room for deadweight such as water, on the plus side you wouldn't have to take any ballast at all.
Jacuzzi on the torch of the statue of Liberty
On the frontpage the domain is showing as jaccuzzi.c (no h), is that a bug?
Are you using Hacker News Enhancement Suite on Chrome? I'm seeing the same thing with that configuration, but not when it's disabled (or on other browsers).
Yeah that must be it. Thanks
You have a plugin causing that.
Someone posted an imgur screenshot to HN with a title something like "bug on HN today". This was within the past day or so.
The Algolia search is fucking hopeless so I can't find the submission now.
Someone posted an imgur screenshot to HN with a title something like "bug on HN today". This was within the past day or so.
The Algolia search is fucking hopeless so I can't find the submission now.
Hey Dan, what kind of problem do you have with the search (we recently fixed the back button + are also working on the small 320px screens support). I would be happy to improve it.
HackerNews, where you can't just vent because the developer will show up to shame you. Thanks redox! (not sarcasm)
Appears fine to me. Maybe a rendering issue?
This seems risky.
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Some people do things. Some don't. Do you do things?
Of all the gear and prep that was needed, they even made sure there was pie and cake. Really important. Really.
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I for one wonder if they had sex in there. And if they didn't, I totally don't get it.