Klein bottle / Möbius strip / Eulerian path

Klein bottle :

I cut the Network screen-shots from the “Wikipedia"

http://en.wikipedia.org/wiki/Klein_bottle

Let the Klein bottle ‘s inside is masculine then outside of it is feminine.

Möbius strip

Cut the Network screen-shots  from Wikipedia

http://en.wikipedia.org/wiki/M%C3%B6bius_strip

Möbius strip would feel like the "Pony" (wrote it in the chapter 6 )

Klein bottle would feel like The" little turtle "(wrote  in the chapter 6 too )

Two ponies touch together becomes one little turtle.

Two Möbius strips touch together →one Klein bottle .

Eulerian path:

I cut the Network screen-shots from Wikipedia

http://en.wikipedia.org/wiki/Eulerian_path

Eulerian path:

" little turtle " goes with Eulerian path:

Or "Pony" goes with Eulerian path:

If let A is the Starting point ,B is the end . If let starting point is masculine ,then the end is the feminine .The two point is hedge degree if they were in the “Eulerian path”. as follows:

^{The Tortoise matrix appear Eulerian path ：}