
....A two-tone rope, half red
and..... half white, is displayed.
|

.........A
knot is tied in the center........
of each section. |

b....By
passing a hand over the rope, ...a
a strange thing happens... |

...the knots change the color! |

......Another pass....
The knots turn...... back to their
original colors! |

....The knots are
untied and the rope.. can be passed
for examination! |