The figure-eight knot is equivalent to its mirror image
Some knots aren't equivalent to their specular image, but this is not the case of the figure-eight knot. This is the first step of an operation that transforms the figure-eight knot in its specular. You can see here the successive step.
The image has been realized with the program KnotPlot.
© matematita
The image belongs to the sections...:
Images from the topology section (From the exhibitions of matematita)
Figure eight knot (Topology)
Further information:
http://www.pims.math.ca/knotplot/