Images for Mathematics

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Cutting a Moebius strip

We can cut a torus along a simple, closed curve and it won't divide in two parts. See also...

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Cilindro o nastro di Moebius?

In una delle attività laboratoriali proposte nella mostra "Uguali? Diversi!" al Festival ...

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A cylinder

If we take a long and narrow rectangle and paste together the two shortest sides, we get a...

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Drawing knots

The pieces of this puzzle are hexagonal tiles, all decorated with three pulls of rope (two...

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Cutting a torus

By identifying opposite sides of a rectangle, we get a torus. See also the interactive ani...

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A surface

A surface whose border is a torus knot of type (4,3); here we can see an embedding in the ...

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A sphere with 4 handles

The theorem of classification of the surfaces states that any compact, connected, orientab...

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At the exhibition matemilano

The exhibition matemilano at the Museum of Science and Technology in Milan, September 2003...

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At the exhibition matemilano

In the section "Topology" of the exhibition matemilano there are some threads with magneti...

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Una sfera cornuta

Se prendiamo una sfera "normale" nello spazio ordinario, il suo complementare e' fatto di ...

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