For over a century, this hand-cranked bronze device from ancient Greece modeled the Sun, Moon and eclipses; new simulations ...

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

A team of New York University scientists has created a gear mechanism that relies on fluids to generate rotation. The invention holds potential for a new generation of mechanical devices that offer ...

The study, published January 13 in Physical Review Letters, replaces the metal or plastic cogs of conventional gears with controlled flows of liquid. In their experiments, ...

If you trawl around patent databases long enough, you'll spot something interesting from time to time. This time around, it ...

As one of the oldest components of human engineering, gears have driven civilization for thousands of years. But now, engineers at New York University in the US have given gears a new liquid twist.

Abstract: This study proposes a cleaning machine using a multistage planetary gear mechanism to remove accumulated grease from kitchen ducts with various geometries, including circular and square ...