What You Need:
- A 3 foot long rope or piece of string
Challenge your friends to tie a knot in a piece of rope without letting go of the ends.
None of them will be able to do it, but you will!
- Lay the string down on a table.
- Cross your arms and grab an end of the string in each hand.
- When you uncross your arms, a knot will appear in the middle of the string!