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23 pages Pdf - 4.92Mo - Charles HAMEL - Free

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Copyright <strong>Charles</strong> <strong>HAMEL</strong> 20 Avril 2011 Page 1 sur <strong>23</strong><br />

Release version 1.1 June 2011<br />

DISMANTLING SOME KNOTS DIAGRAMS AND REBUILDING THEM<br />

(ABoK #2216 ; #2217; #2218 ; #2219 (1391) ; #2222 ; #2<strong>23</strong>2 )<br />

AS THEY SHOULD HAVE BEEN DRAWN (IMO) IN THE FIRST PLACE :<br />

AS CYLINDRICAL DIAGRAMS.<br />

Why “as it should have been” ?<br />

Simply for the fact that I do think that it<br />

is quite aberrant and inefficient to draw<br />

as a flat mat what is supposed to be a<br />

‘VOLUME’ COVERING (core inside<br />

and the knot is just what covers the<br />

core area or surface) that will need<br />

quite a lot of fairing and dressing to be<br />

put on the volume to be covered.<br />

SPHERE = AREA, SURFACE of a<br />

globe/ball. Not my perspective but<br />

Mathematics’ perspective!<br />

GLOBE (the globe of a breast !) or BALL<br />

is VOLUME.<br />

VOLUME can be: sphere, ovoid,<br />

octahedron, tetrahedron…anything that<br />

can be properly covered by the knot.<br />

In some other cases instead of a<br />

covering it could be a GLOBE / BALL<br />

knot (no core inside ; the knot itself is<br />

the whole volume).<br />

Please, please ! do not do as ignorant<br />

persons do ; see the pompous asinine<br />

quote under.<br />

[open quote]<br />

You commented on one.../…projects in<br />

the "So-and-So" album but you need<br />

someone to teach you the difference<br />

between a Turks Head and a Globe<br />

knot; that's a Globe knot!<br />

…/…<br />

And if you want to learn the difference<br />

between the two, I know a guy that<br />

sells a great set of books you can use<br />

to learn about them.<br />

[end quote]<br />

That dull lesson giver does not even<br />

know what a ‘globe knot’ is, he does<br />

not even realise that in fact he is<br />

speaking of spherical covering and is<br />

making a bad confusion about those<br />

two types of knots applications.<br />

Spherical (or other shape surface)<br />

covering knots are not a particular knot<br />

type but rather some particular<br />

FUNCTION, USE or APPLICATION of<br />

some knots that are quite diverse in<br />

types.<br />

▲Most are NESTED BIGHTS<br />

CYLINDRICAL KNOTS (single or multi-<br />

STRAND)<br />

* REGULAR SYMMETRIC<br />

* REGULAR ASYMMETRIC<br />

* IRREGULAR SYMMETRIC<br />

* IRREGULAR ASYMMETRIC<br />

▲SOME TURK’S HEAD KNOTS can<br />

indeed serve as satisfying spherical<br />

covering in particular dimensions.<br />

▲A Monkey’s Fist can be use either<br />

as a globe knot or as a spherical<br />

covering.<br />

It is certainly not with the book pointed<br />

to that someone will learn not to<br />

confuse globe knot and spherical<br />

covering. The book’s author does not<br />

seem to make a difference between<br />

them.<br />

My intent here is not so much to offer<br />

new diagrams as to show how anyone<br />

can “explore and find new tricks” :<br />

screen captures serve as illustrations<br />

but my exploration were made “by<br />

hand” and the software used only after<br />

the results had been verified.


Copyright <strong>Charles</strong> <strong>HAMEL</strong> 20 Avril 2011 Page 2 sur <strong>23</strong><br />

Release version 1.1 June 2011<br />

Lets us state some points.<br />

*** Most often the cylindrical diagram is<br />

easy to deduce once the coloured<br />

markers are in place, that despite the<br />

aberrant clockwise move that is shown<br />

on some of the flat diagrams that on a<br />

vertical cylinder translates into the<br />

aberrant BOTTOM-LEFT to TOP-RIGHT for<br />

ODD numbered HALF-PERIODS.<br />

( to know the meaning I attached to<br />

‘aberrant’ please read page 7 and<br />

beginning of page 8 of my .pdf on Pins<br />

notation at<br />

http:/charles.hamel.free.fr/knots-andcordages/PUBLICATIONS/KnotNotatio<br />

n-V1.pdf<br />

This aberration is corrected in all but<br />

one of the cylindrical diagrams and<br />

ODD numbered Half-Periods go from<br />

BOTTOM- RIGHT to TOP LEFT.<br />

*** I also dispense with what is, in my<br />

opinion at least, a formidably inefficient<br />

way of indicating the nature of the<br />

crossings which is more hinder than<br />

help for the knot-tyer and may have<br />

some usefulness only if used with a<br />

cord laid on a printed diagram.<br />

Ashley went for ‘proprietary<br />

formulation’ alas his utterly bizarre<br />

crossing ‘cryptography” :<br />

- is cumbersome, more hinder<br />

than help for the knot tyer<br />

- is quite error prone<br />

- does not allow the immediate<br />

perception of the “PATTERN”<br />

made by the crossings.<br />

All in all “ a work not really done and<br />

certainly not to be done” ( ni fait, ni à<br />

faire as goes the French expression to<br />

qualify a somewhat less than ideal job)<br />

A parté : immediate rejection without a carefully and<br />

honest open-mind critical evaluation (as for<br />

academic works) is bad but I do wonder for sure if<br />

parroted and medullar ( automated, by-passing the<br />

brain higher structures and functions) praise and<br />

admiration without same examination is not worse.<br />

Ashley’s work is a tremendous effort, irreplaceable,<br />

but is far from lacking in sore points !<br />

We begin with a “shock” treatment<br />

using #2218 first.<br />

After that first dive in cold water we<br />

take a more reasonable learning<br />

gradient : #2216, #2222, #2217,<br />

#2219 (#1391), #2<strong>23</strong>2<br />

Readers who prefer to<br />

avoid any possibility of<br />

brain sprain will best go<br />

directly to #2216, read<br />

till they are finished with<br />

#2217 then go back to<br />

#2218 and finish with<br />

#2219 , #2<strong>23</strong>2.


Copyright <strong>Charles</strong> <strong>HAMEL</strong> 20 Avril 2011 Page 3 sur <strong>23</strong><br />

Release version 1.1 June 2011<br />

ABoK #2218 DISSECTION :<br />

Fig 1<br />

Fig 2<br />

Fig 3 Fig 4<br />

But is that a reality perceived or just wishful thinking ?<br />

Lets us dispense with the way of indicating the nature of the<br />

crossings which is more hinder than help. (Fig 2 )<br />

A first glance immediately shows an intimation of possible<br />

SYMETRIC REGULAR NESTED-BIGHTS CYLINDRICAL<br />

KNOT, 4 BIGHTS-NESTS , 2 BIGHTS-PER NEST,<br />

8 LEADS, x=6<br />

A first quickly made grid, using ARIANE the Claude HOCHET’s program that makes grids<br />

of Nested-Bight Cylindrical Knots, shows that 2 STRANDS are needed to make such a knot<br />

with a 4 BIGHTS-NESTS, 2 BIGHTS per NEST, distance x = 6 and 48 CROSSINGS. Fig 5.


Copyright <strong>Charles</strong> <strong>HAMEL</strong> 20 Avril 2011 Page 4 sur <strong>23</strong><br />

Release version 1.1 June 2011<br />

It is not so much the 48 CROSSINGS that<br />

make it “no go” than the 2-STRANDs.<br />

A PINEAPPLE BUT NOT A STANDARD<br />

HERRINGBONE-PINEAPPLE !<br />

Fig 6<br />

Fig 5<br />

The first point to solve, if we<br />

are to succeed in our making<br />

of a cylindrical diagram, is<br />

that the need of two STRANDS<br />

must be nullified and<br />

transformed to single<br />

strand-ness so to speak ; the<br />

2 strands must be reunited by<br />

making the route of one<br />

flows into the route of the<br />

other .


Copyright <strong>Charles</strong> <strong>HAMEL</strong> 20 Avril 2011 Page 5 sur <strong>23</strong><br />

Release version 1.1 June 2011<br />

Fig 8 Fig 7<br />

Fig 9<br />

There is something that we must<br />

examine (and do) in the bottom right<br />

hand corner of Fig 7<br />

Fig 10<br />

Fig 9 is equivalent to Fig 10 but is much<br />

more efficient for spherical covering<br />

practical tying.<br />

Remains to see if Fig 11 and Fig 12<br />

are equivalent to Fig 8 .


Copyright <strong>Charles</strong> <strong>HAMEL</strong> 20 Avril 2011 Page 6 sur <strong>23</strong><br />

Release version 1.1 June 2011<br />

Fig 11 Fig 12<br />

Obviously the answer is NO. None is equivalent to Fig 10. So better leave that trail that was<br />

looking for a simplification by re-entering.<br />

In Fig 12 (Fig 14) ? is a newly created crossing and ?? stands for crossing #<strong>23</strong> GHOST !<br />

It has 47 FACEs instead of 48 but it may (though I doubt it) be worth a try as for some<br />

ASYMETRIC IRREGULAR NESTED-BIGHTS CYLINDRICAL KNOTS.<br />

Fig 13 Fig 14<br />

FiG 13 is the correct cylindrical diagram to use.


Copyright <strong>Charles</strong> <strong>HAMEL</strong> 20 Avril 2011 Page 7 sur <strong>23</strong><br />

Release version 1.1 June 2011<br />

ABoK #2216<br />

Fig 1<br />

Fig 2 Fig 3<br />

In the first second of looking at that<br />

diagram it is evident that this is a REGULAR<br />

SYMMETRIC NESTED-BIGHT CYLINDRICAL<br />

KNOT drawn in an absurd flat form.<br />

It is quite easy, once the coloured PINs are<br />

in place, to transform it into a cylindrical<br />

diagram.<br />

Fig 4


Copyright <strong>Charles</strong> <strong>HAMEL</strong> 20 Avril 2011 Page 8 sur <strong>23</strong><br />

Release version 1.1 June 2011<br />

Fig 5<br />

Fig 6<br />

Fig 6 shows a grid of a 4 BIGHTS-NESTS, 2 BIGHTS per NEST, 24 FACES, 5 LEADS, x=3 so it<br />

is “just like” #2216. NO! not at all.<br />

We have to comply with a correct OFFSET between the TOP and BOTTOM BIGHTS-NESTS.


Copyright <strong>Charles</strong> <strong>HAMEL</strong> 20 Avril 2011 Page 9 sur <strong>23</strong><br />

Release version 1.1 June 2011<br />

Fig 7 shows the correction to be made<br />

Fig 8<br />

Fig 8 shows the cylindrical diagram that is, by and large, a lot more helpful and descriptive<br />

for any knot tyer than the cumbersome flat diagram made by ASHLEY.<br />

The flat form is uneasy to use and also deforms the knot so much that it will need a lot more<br />

adjusting and dressing to be put on a ball that the one coming off of a cylinder.


Copyright <strong>Charles</strong> <strong>HAMEL</strong> 20 Avril 2011 Page 10 sur <strong>23</strong><br />

Release version 1.1 June 2011<br />

ABoK #2222<br />

FIG 1<br />

FIG 2 FIG 3<br />

Note that there are SIX BIGHTs on one KNOT EDGE and THREE BIGHTs on the other KNOT<br />

EDGE== ASYMMETRIC<br />

As there are NESTED-BIGHTs on one KNOT EDGE this leads to ASYMMETRIC NESTED<br />

BIGHTS CYLINDRICAL KNOT.<br />

Putting in the PINs makes things clear and the obvious use of “usual” crossing (rather than<br />

the queer Ashley’s crossings) offers the knot-tyer a better and more immediate ‘visual<br />

acquisition’ of the PATTERN.


Copyright <strong>Charles</strong> <strong>HAMEL</strong> 20 Avril 2011 Page 11 sur <strong>23</strong><br />

Release version 1.1 June 2011<br />

FIG 4 FIG 5<br />

FIG 6<br />

It is easy with the use of<br />

colours to verify the<br />

congruence of the crossings of<br />

FIG 5 and FIG 6


Copyright <strong>Charles</strong> <strong>HAMEL</strong> 20 Avril 2011 Page 12 sur <strong>23</strong><br />

Release version 1.1 June 2011<br />

ABoK #2217<br />

Fig 1<br />

Another example of aberrant drawing under a flat mat form of what would have been better<br />

made under the form of a cylinder diagram because (quite evident to see) this is a<br />

SYMMETRIC REGULAR NESTED-BIGHTS CYLINDRICAL KNOTS. 40 FACEs<br />

4 BIGHT-NESTS, 2 NESTS per BIGHT, just as #2216 but while x=3 for #2216 here x=5 and that<br />

makes a difference.<br />

Fig 2<br />

This isometric cylindrical diagram is easy to deduce once the coloured markers are in place.


Copyright <strong>Charles</strong> <strong>HAMEL</strong> 20 Avril 2011 Page 13 sur <strong>23</strong><br />

Release version 1.1 June 2011<br />

Fig 3<br />

Fig 4<br />

The two coding O1-U1 (U1-O1) that can be applied.<br />

This #2217 is full of lessons


Copyright <strong>Charles</strong> <strong>HAMEL</strong> 20 Avril 2011 Page 14 sur <strong>23</strong><br />

Release version 1.1 June 2011<br />

Fig 5<br />

Fig 5 is #2217 with O2-U2 ( or vice<br />

versa ) applied == herringbone PATTERN<br />

(NOT, repeat NOT, herringbone KNOT - a<br />

STANDARD HERRINGBONE KNOT DOES<br />

NOT HAVE ANY NESTED-BIGHTS, despite<br />

what some person considered by himself<br />

and his friends as an “ex-spurt” put on his<br />

web <strong>pages</strong>. STANDARD HERRINGBONE<br />

KNOTS have all their BIGHTs along a unique<br />

BIGHT RIM on each KNOT EDGE so it is<br />

absolutely impossible to have NESTED-<br />

BIGHTS.)<br />

Fig 6 is a simili- #2217 WITH ONE SLIGHT MODIFICATION x=7 instead of x=5 ( 56 FACEs )<br />

It can also take the O2-U2 and get a<br />

Herringbone PATTERN as it is easy to<br />

verify (this suppleness of exploration is<br />

one of the great advantage of ARIANE,<br />

Claude HOCHET’s program for NESTED-<br />

BIGHTS CYLINDRICAL KNOTS.)<br />

Fig 6


Copyright <strong>Charles</strong> <strong>HAMEL</strong> 20 Avril 2011 Page 15 sur <strong>23</strong><br />

Release version 1.1 June 2011<br />

ABoK #2219<br />

FIG 1<br />

FIG 2 FIG 3<br />

Fig 2 shows the crossings in place and Fig 3<br />

shows, between the “wasp” crossings, the<br />

aberrant points in the O1-U1 pattern as N° 38<br />

and N°37 crossings are U1-U1 and NOT U1-O1<br />

or O1-U1.


Copyright <strong>Charles</strong> <strong>HAMEL</strong> 20 Avril 2011 Page 16 sur <strong>23</strong><br />

Release version 1.1 June 2011<br />

FIG 4<br />

FIG 4 is the only way to obtain a ‘real’ symmetric<br />

nested-bights cylindrical knot with 4 BIGHTS-<br />

NESTS , 2 BIGHTS per NEST, x=10.<br />

Unfortunately for our purpose it is TWO-STRAND so<br />

we will need a trick to make it 1-STRAND.<br />

FIG 5<br />

shows the<br />

trick used to<br />

make one<br />

strand route<br />

flow into the<br />

other strand<br />

route.<br />

FIG 5 BIS<br />

FIG 5<br />

The<br />

orientation of winding in the cylindrical diagram is<br />

aberrant so we would need some geometrical<br />

manipulation to make it<br />

“normal” as in FIG 5 BIS<br />

in which ODD numbered HALF-PERIODS go from<br />

BOTTOM-RIGHT to TOP-LEFT<br />

Hopefully every reader will have noted that to get the<br />

correct orientation the INNER KNOT EDGE is put at<br />

the TOP and the OUTER KNOT EDGE at the<br />

BOTTOM.<br />

Plus the colours that read clockwise on FIG 7 are (in<br />

circular order)<br />

Yellow – Dark beige – Orange – Yellow and Dark violet – Mauve rose – Dark red – Blue<br />

are to be put IN THAT ORDER BUT WRITING RIGHT to LEFT. Or write them LEFT to RIGHT but<br />

READ THEM ANTI-CLOCKWISE (this must reminds you of Schaake’s Bights Algorithm. NO?)


Copyright <strong>Charles</strong> <strong>HAMEL</strong> 20 Avril 2011 Page 17 sur <strong>23</strong><br />

Release version 1.1 June 2011<br />

FIG 7<br />

FIG 6<br />

Let us, as a « lesson » and mental (s)training,<br />

continue with the aberrant orientation.


Copyright <strong>Charles</strong> <strong>HAMEL</strong> 20 Avril 2011 Page 18 sur <strong>23</strong><br />

Release version 1.1 June 2011<br />

FIG 8 FIG 9<br />

FIG 9 is the way Ashley put the crossings.<br />

Following is the “making of” of ABoK #1391 as a practical example for training purpose.


Copyright <strong>Charles</strong> <strong>HAMEL</strong> 20 Avril 2011 Page 19 sur <strong>23</strong><br />

Release version 1.1 June 2011<br />

THE MAKING OF OF ABoK 1391 as PRACTICAL STEP BY STEP EXAMPLE<br />

FIG 1<br />

By calling this knot a TURK’s HEAD, ASHLEY shows, as alas in other instances, a<br />

staggering lack of efficient observation, depth of structured analyse and knowledge.<br />

He was just “following what I was told by tradition”, thoughtlessly, inattentively, without any of<br />

the critical spirit of the trained explorer.<br />

This knot has absolutely nothing in common with a THK as defined by perfectly known ( for<br />

many centuries) cycloids equations. See my features on the mathematics of THK.<br />

It is a SYMMETRIC NESTED-BIGHTS CYLINDRICAL KNOT light years from looking like<br />

any Regular Knots Row and Column coded O1-U1 known as THK.<br />

FIG 2


Copyright <strong>Charles</strong> <strong>HAMEL</strong> 20 Avril 2011 Page 20 sur <strong>23</strong><br />

Release version 1.1 June 2011<br />

Make a hand drawing, rough sketching is quite all right, mark the PINs and crossings, make a<br />

rough diagram under it and explore the HALF-PERIODS. Verify and finalise.<br />

FIG 3<br />

Make a neater diagram using an isometric graph paper.<br />

FIG 4<br />

If you are lucky enough to have a<br />

licensed copy then explore with<br />

ARIANE.


Copyright <strong>Charles</strong> <strong>HAMEL</strong> 20 Avril 2011 Page 21 sur <strong>23</strong><br />

Release version 1.1 June 2011<br />

ABoK #2<strong>23</strong>2<br />

FIG 1<br />

FIG 2<br />

FIG 3


Copyright <strong>Charles</strong> <strong>HAMEL</strong> 20 Avril 2011 Page 22 sur <strong>23</strong><br />

Release version 1.1 June 2011<br />

FIG 4<br />

FIG 5


Copyright <strong>Charles</strong> <strong>HAMEL</strong> 20 Avril 2011 Page <strong>23</strong> sur <strong>23</strong><br />

Release version 1.1 June 2011<br />

FIG 6 A TWO-STRAND IMITATION OF THE #2<strong>23</strong>2 = A STANDARD HERRINGBONE-<br />

PINEAPPLE - ONE SET of component THK is empty the other SET contains 2 THK 3L 4B<br />

FIG 8 Still you can use just O1-U1<br />

FIG 7

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