If you didn’t know better, the gripping action of Velcro could be seen as some kind of magic. Sure, one side is soft and one is scratchy, but that shouldn’t make them hold together quite so firmly. Looking at it under a microscope, though, and it all starts to make much more sense. Velcro, invented by Swiss engineer George de Mestal in 1948, is a system of incredibly tiny hooks and loops. When you zoom in on them, you can see very clearly how they hook and hold so firmly.
Photo credit: Tracy Anderson/Nikon