All tied up

Aug 03, 2008 13:02

I like knots ( Read more... )

maths, knots, rock climbing, sex

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Comments 24

jackalopemonger August 4 2008, 15:42:40 UTC
Why is a left-handed bowline less secure than a right-handed one?

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pozorvlak August 4 2008, 20:13:41 UTC
Because of Science :-)

Seriously, buggered if I know, but this is apparently what experiments indicate. They're two different knots, btw, not just mirror images of each other. In the right-handed version, the working end (the "rabbit") goes around the back of the standing end (the "tree") and ends up hanging down into the loop, and in the left-handed version it goes around the front of the standing end and ends up sticking out to the side. I tried to knock up some sketches to show the difference, but can't get them to display properly :-(

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jackalopemonger August 4 2008, 20:23:18 UTC
Oh, okay. I thought you meant mirror images, in which case I'd be *really* confused.

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pozorvlak August 4 2008, 21:56:44 UTC
It might make a very slight difference in cable-laid (twisted, and thus chiral) rope, but yeah, I think simply reflecting a bowline doesn't significantly affect either its strength or security :-)

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Got a link this way :) bethanthepurple August 6 2008, 22:30:24 UTC
I like your use of terminology.

My list is probably safety first, then comfort, speed, security, and finally prettiness. Breaking strain *really* doesn't matter as people will damage before rope. They're squidgy like that.

Safety is covered by rope & knots with a good bite that will grip to itself. 4 or 5 round turns before a cinch & then a reef is enough to stop tightening and is pretty comfy, but takes a good while to tie.

My favourite for a while has been the larks foot for sheer speed. Twist, hand through, tighten, and a secured partner! Not one for strugglers as it's thin, but easy to get in and out of.

The rope I use is cheap soft magician's rope, £25/100m. Comfy, wide, flexible, secure with good bite, and cheap enough to not matter if it needs to be cut. I wouldn't use it to bear loads in suspension(!) but it does very well to hold someone securely on a bed or other horizontal surface.

SM 101 & Erotic Bondage by Jay Wiseman are both good for this subject.

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Re: Got a link this way :) pozorvlak August 8 2008, 12:10:00 UTC
I like your use of terminology.

Er, thanks! :-) I think all the terms I use are standard, for some value of "standard".

Safety is covered by rope & knots with a good bite that will grip to itself. 4 or 5 round turns before a cinch & then a reef is enough to stop tightening and is pretty comfy, but takes a good while to tie.

Makes sense.

My main use-case for the lark's foot is as an attachment point for climbers to the belay anchor. Lark's foot a sling through the abseil loop on the front of your harness, then clip it into the anchor setup with a screwgate karabiner. Interesting the different uses people have for things, isn't it? :-)

The rope I use is cheap soft magician's rope, £25/100m.
Oh yeah, I know the stuff. Yes, that holds knots beautifully. Much nicer than hildabeast's B&Q polyprop rope...

Thanks a lot!

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