Now, one-way pipes have been attempted before. More than 100 years ago, Nikola Tesla patented the Tesla valve, a one-way fluid flow device with no moving parts. However, as the team tuned their ...

Inspired by that study, postdoctoral researcher Ido Levin and colleagues at the University of Washington set out to replicate the spiral valve's one-way functionality in rigid 3D-printed pipes.

but couldn’t loosen it from the hose bib. It was seized! We tried 4 different options, each time escalating the leverage and force when one didn’t work. First things first: spray the heck out ...

Moo Deng tried to bite her keeper and hose as she delighted Thai zoo visitors.Source: Khao Kheow Open Zoo Yahoo News ...