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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.

Gears Have Powered Technology for Millenia. Scientists Just Made a Game-Changing Improvement.

A new study reimagines the 3,000-year-old technology using fluids, avoiding the most annoying limitations of teeth-driven ...