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This three-component link can be disposed so that it has the same "shadow" of the Borromea...
How to get a bitorus from a decagon: this is the second step. Here you can see the third s...
How to get a bitorus from a decagon: this is the third step. Here you can see the fourth s...
How to get a bitorus from a decagon: this is the fourth step. Here you can see the fifth s...
How to get a bitorus from a decagon: this is the fifth step. Here you can see the fourth s...
How to get a bitorus from a decagon: this is the sixth step. Here you can see the seventh ...
How to get a bitorus from a decagon: this is the last step. Here you can see the preceedin...
Three untied circumpherences are an example of torus knot of type (3,0). If we want to get...
If we take three threads and twist them for a while, until we get six crossings, by closin...
This sculpture made by Norberto Marchi in Cantù represents a Moebius strip.
