A Walk, a Dog, and Burrs That Became Hook Tape
Have you ever pulled a prickly burr off your sock? A man from Switzerland named George de Mestral did, and it gave him a big idea.
One day, he went for a walk in the countryside with his dog. When they got home, burrs were stuck all over his clothes and the dog's fur. They were hard to pull off. He wondered why they held on so tightly.
He looked at a burr under a microscope. He saw that it was covered with tiny hooks. The hooks caught on the little loops in his clothes and in the dog's fur.
George thought that he could copy this. He made one strip with many tiny hooks and another strip with many soft loops. When the two strips were pressed together, they stuck. When he pulled them apart, they came free with a rip. It took him a long time to get it right.
Today, hook and loop tape is on shoes, jackets, and backpacks.