Tutorial: Tie a Knot That Can’t Be Undone

Ever needed or wanted to tie a knot that couldn’t easily come undone? For example, to splice two ropes together in order to create a single longer one. Or perhaps to tie knots in your sleeping sister’s hair… no, wait. Don’t do that.

Anyway, here is a fantastic little video that shows you how to tie a virtually indestructable knot and it’s quite nicely done.