[Amr] recently built a 3D printer and came across his first practical application for it — his jacket’s zipper broke! What we like about this project is [Amr] goes through the entire design ...

Drivers should prepare for I-490 lane closures and Exit 27 ramp shutdown. Learn safe zipper merge tips and avoid construction delays.

Apply a thin layer of clear nail polish over the worn teeth, focusing on areas where the zipper won’t stay closed. Let it dry completely before zipping up your jeans. The coat of polish adds a ...

PENNSYLVANIA, USA — It happens to all of us at one time or another. You're on your way out the door, you grab your coat, and the zipper is stuck or broken.

A zipper merge operates like a zipper on a jacket. Drivers approaching the merge must perform a late merge, taking alternating turns—similar to how the teeth of a zipper come together.