Da Fita de Möbius a Klein Bottle (Topologia)

Se unirmos  fitas (ou faixas) de Möbius, 
obteremos uma Klein Bottle.

http://im-possible.info/english/articles/mobius-strip/mobius-strip.html

http://im-possible.info/english/articles/klein-bottle/

Properties

If we dissecting a Klein bottle into halves along its plane of symmetry we get two mirror image Möbius strips, the one with a left-handed half-twist and the other with a right-handed half-twist. In fact, it is also possible to cut the Klein bottle into a single Möbius strip.
Otherwise, a Klein bottle can be represented as two Möbius bands connected by an ordinary two-sided band whose back and front sides are colored white and blue respectively as you can see at the image below.