Images for Mathematics

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A fake knot

We define a "fake knot" as a knot (so, a simple, closed curve in the space) that can be de...

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A Moebius strip

If we take a long and narrow rectangle and paste together the two shortest sides after hav...

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A Moebius strip

If we take a long and narrow rectangle and paste together the two shortest sides after hav...

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A cylinder

If we take a long and narrow rectangle and paste together the two shortest sides after hav...

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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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The boundary of a Moebius ...

The boundary of a Moebius strip is made of a unique circumpherence.

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A Moebius strip

A Moebius strip: the colouring puts in evidence the boundary, that is made of one circumph...

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Knotted columns

Knotted columns (ophitic) in the transept of Trento cathedral (13th century).

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A sphere

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