ManyFolds in Variety
% The preparation is (still) in progress, however [forever?], %
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2005/3/8
「Moebius strip」 knots
An example model of a [cellwise isometric] double covering map from an orientable compact flat surface with boundary ([topologically equivalent to] an annulus) to a non-orientable compact flat surface with boundary ([topologically equivalent to] a Moebius strip) - in the terminology of mathematics - :
The boundary of Moebius strip, equivalent to a simple closed curve topologically, is embedded to a (piecewise linear) trefoil knot in this case.
Material: a strip [in wide width] of tracing paper; with the use of an adhesive tape [to stick together both ends of the strip].
Date: %Confirmation is in progress... probably in 1995%
Photo date: January 10, 2002
23
Material: a strip [in wide width] of tracing paper; with the use of an adhesive tape [to stick together both ends of the strip].
Date: %Confirmation is in progress... probably in 1995%
Photo date: January 10, 2002
23
投稿者: kaishonashi
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