Not wanting to adhere to the party of the sly guys
who implicitly - they carefully and
discreetly abstain from saying
where they got the idea
- make believe they invented the trick.
I want to state that this is
something that stem from visiting web sites selling brain
teasers
and puzzles.
Instead of wooden spheres*, or rather balls**, I use knoting.
(
* & ** in proper language sphere is the area ands ball of globe
is
the volume as in "the globe of a breats"
-if they use a core then I would rather say the knottings are 'sphere'
the
knotting being the surface of the core, the 'ball')
There are many other 'traditional' models of brain teasers to
adapt to rope and knots.
That will makes personalized amusing gifts for people around you.
Taking this 'string and ball' assembly
how can you proceed so as to get this
result ?
Geometrical constraints are that neither the turk's head knot nor the
monkey's fist may go through the eye.
By now you should already have the solution.
Just in case you are lazy : here
it is.
Accessory brain teaser : starting from the end result reinstall the
puzzle for
the next player.
- either in each one or in only one, separate, the two components of
the
linkage ?
- or prove trying 1000 times without success is no proof as
the
1001 attempt could prove successful, same thing with any
number of
unsuccessful times) that it is impossible to separate the linked
components.
Either with a topological or with a logical explanation. ?
To help you here are their
topological equivalent
Just for the fun : any topologist reading this, please send me a full
formal "proof" to put on line here.
A good scan of a sheet of paper with your work will suffice. Thanks
ahead of time.
MY TRICK WITH
OVERHAND KNOTS
I found it while making cordage doodles.
Can you dispose a length of cordage in such a way that you will get two
overhand knots of opposite orientation when pulling at once
on both
end ?
From that can you derive :
- other "knots" ?
(remember I am French : bend/hitch make no sense in my
language we have only
'noeuds" / knots)
