[Teaching Tech’s] latest video discusses “3D printed Velcro.” But as even he admits, Velcro is a trademark, so we think it is more appropriate to talk about hook and loop fasteners. In fact, you can ...

Engineer George de Mestral was walking his dogs in the meadows of the Swiss Alps. When they returned home, he noticed that burr seed pods were stuck on his dogs’ fur! He even found some stuck to his ...