Knot Theory
A knot is called achiral if it can be continuously deformed into its mirror image, otherwise it is called chiral. For example the unknot and the figure-eight knot are achiral, whereas the trefoil knot is chiral.
Read more about this topic: Chirality (mathematics)
Famous quotes containing the words knot and/or theory:
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—Friedrich Nietzsche (1844–1900)
“The theory of rights enables us to rise and overthrow obstacles, but not to found a strong and lasting accord between all the elements which compose the nation.”
—Giuseppe Mazzini (1805–1872)