You're holding a bottle of dark glass lemonade and a cord length of about one meter.
Turn the bottle bottom up. In the neck, insert the end of a rope. Lower the rope - it will not slip out of the bottle. If somebody try to do it, he, of course, nothing will happen. Because the viewers don't know what you quietly three times folded end of the rope, as shown in the figure.
Valery Postolati. "Merry magic" (M, "Panorama", 1992)
The young magician-illusionist
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