Velcro invention (serendipitous discovery)

Origin anecdote — Swiss inventor walking in the Alps observing cockle-burs on wool pants, microscopy revealing hooks and loops, plastic translation.

There's one type of fastener that's used very commonly that was a bit of serendipity, and it's called Velcro. Anybody know how Velcro was discovered? Here's the cockle-bur. This guy was walking through the Alps and he came back and noticed he had all these cockle-burs on his pants, and he thought, I wonder why they stick to my pants like that. So he put them under a microscope and noticed that the end of each of the cockle-burs has a little hook on it. And he realized that his wool pants also had all these little loops. He said that might be interesting as a type of adhesive. So he took plastics, made a bunch of loops and a bunch of little hooks, and that was the invention of Velcro — actually a sort of interesting fastener.