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:
“Separation’s fire
can be borne
when there’s a knot of hope,
but Mother,
when my love leaves home
and stays in the same village,
it’s far worse than death.”
—Hla Stavhana (c. 50 A.D.)
“The theory of the Communists may be summed up in the single sentence: Abolition of private property.”
—Karl Marx (1818–1883)