Page 93 - Walter B. Gibson "Knots And How To Tie Them"

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Knot DIssolving Tube
Here is something really fourth~
dimensional. A fantastic tube that
dissolves knots inserted into it!
To prove the tube's special proper~
ties, you take a light rope and tie a
simple Overhand Knot around the
outside of the tube, in such a manner
that the left end ("A") is the upper
end, and the right end ("B") is the
lower end (fig. 1).
Bring the right strand of the rope a
few inches downward hold it against
the tube with the left thumb while
you carry the right end of the rope
clear around the tube with the right
hand. You then tie another knot, just
like the first, using end "B" in the
process.
Bring the right end downward
again, and hold the rope with the left
thumb while the right hand carries its
end ("S") around the tube and ties a
third knot. This is near the lower end
A of the tube and the rope end ("B")
now dangles free (fig. 2).
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fig. 1 ~
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