Want to learn an interesting trick with a shoelace? Take a shoelace (or thin cord) and get ready to impress your friends.
Make a loose knot as shown.
Add a second knot to the first. Obviously, if you pull the shoelace tight at this point, you’ll get a strong double knot. Leave it loose for now.
Now it gets more complicated. Take one end and pass it through the loop of the first knot.
And then through the loop of the second knot as shown.
Preparation is complete. Now for the most interesting part! Holding one free end of the shoelace, offer your friend to pull on the other end. Instead of creating a big, complicated knot–as your friend expects–the shoelace comes clean! The knot simply disappeared! You are a true magician! (Just make sure you prepared the knot exactly as shown in the photos!)