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Original Usenet message from alt.ascii-art, 25 May 2004.
Re: request

Re: request

From col...@yahoo.com · alt.ascii-art · 25 May 2004 21:39 · View full thread · report
On Tue, 25 May 2004, Michele Cerulli wrote:
> It is a possible figure, it's odditiy is that it has only one surface.
> However, if you want an "impossible" moebius like figure, you can try with the
> Klein Bottle.

It's impossible in 3 dimensions, but if you will allow use of time as
the fourth it is very easy: Take two rings sitting on top of each other.
Lift the top one and turn it over and set it back on the fisrt. The moving
ring sweeps out a surface something like this:

.      .----.
.     /  __  \
.    /  /  \  \
.    |  |  |  |
.    |  |  |  |
.    \  \  /  /
.     \  \/  /
.      \ /\ /
.       |  |
.       |__|

while the stationary ring sweeps out a surface through time connecting the
initial and final ends of the surface generated by the moving ring. [You
might want to consider the rings to come into existance just before you
seperate them and to cease to exist just afterwards.] Note the orientation
of the ring has changed, kinda like the 1/2 twist you give the strip when
making a Moebius strip.

Using [the edges of] two coins you can bet your mathematician friends you
can make a klein bottle and maybe win said two coins :-)

  3ch

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