ZME Science on MSN

This Touchless Gear System Uses Fluid Dynamics to Transfer Power and Rotation Without Any Teeth

Engineers reinvent the 5,000-year-old gear using fluids instead of solid teeth.

Patch AM: Want to share a story onstage at the Grand next week?

Today's riddle: One night I dreamed I was a muffler. 🤔 (Answer below!) ...