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- From: pnsf01dw@UMASSD.EDU (Dennis J. Wilkinson)
- Subject: Re: Hangmans Noose
- Message-ID: <BzoMxp.MM4@umassd.edu>
- Sender: usenet@umassd.edu (USENET News System)
- Reply-To: pnsf01dw@UMASSD.EDU
- Organization: UMASS DARTMOUTH, NO. DARTMOUTH, MA.
- References: <1h0vrmINNon0@usenet.INS.CWRU.Edu> <KIRAVUO.92Dec21181237@lesti.hut.fi>,<BzMIyF.HxH@news.iastate.edu>
- Date: Tue, 22 Dec 1992 22:39:24 GMT
- Lines: 37
-
- In article <BzMIyF.HxH@news.iastate.edu>, wjturner@iastate.edu (William J Turner) writes:
- >
- >Not only that, but it can be very dangerous! If the two ropes are not
- >*EXACTLY* the same (in other words, the two ends of the same rope) the
- >square knot *WILL* slip. Therefore, about the only purpose it is
- >specifically suited for is first-aid, where you may tie a bandage on
- >a victim.
-
- Reef knots slip under a variety of circumstances, mostly related either to
- different sized ends being knotted or uneven pull. Under load, a reef knot can
- remove over 50% of the load-bearing strength of the lines tied together because
- of the way force is opposed in the knot (I'm not a physicist, but this is what
- I've seen printed in various books).
-
- Actaully, the main reason that a reef knot is tied on bandages is because it
- makes it extremely easy to UNTIE the knot, especially with forceps - grab the
- two bights of the knot and pull in opposite directions. Not that that makes much
- difference to a surgeon with a pair of gauze scissors... :-).
-
- As far as teaching knots is concerned, teach your Scouts in the same manner, and
- with the same information, as is shown in their Handbooks (or whatever
- literature they're using as a reference) so that if they need to look it up on
- their own, the information won't confuse them by conflicting. You should only
- conflict (and this is a personal opinion) is when there's a possible saftey
- hazard, as with a load-bearing reef (square) knot.
-
- I wonder if anyone's ever mentioned this problem to the people who churn out
- handbooks (for the BSA, at least...)
-
- Related to all this talk of knots, how many of you out there can tie both right-
- and left-handed??? Just a curiousity... I've found it helps if you have to teach
- a lefty knots, particularly things like the bowline and sheet bend.
- ----------------------------------------------------
- Dennis J. Wilkinson, II (pnsf01dw@umassd.edu)
- University of Massachusetts Dartmouth - Design/CS Project
-
- The opinions reflected in this post are MINE!!!! ALL MINE!!!!!
-