Spring-loaded plungers use a spring and a plunger (or ball tip) to exert a precise and repeatable force. They are a better option than having engineers cobble together an assembly that uses a simple, ...

Most people probably don’t think about springs until one kinks up or snaps, but most of the world’s springs are pretty crucial. The ones that aren’t go by the name Slinky. We all use and encounter ...

Close-up of Hyptiotes cavatus spider holding triangle web support line with front legs keeping web open, while using back legs to secure anchor line. When back legs release anchor line, spider and web ...