Researchers in the US and Sweden have shown that it is possible to operate a particle collider like a set of gears, allowing particles to circulate at different velocities. This could be a boon for ...

You spin me round: Two spinners inside a circular container are surrounded by liquid containing bubbles that help to visualize the flows. The left spinner is actively driven to rotate with a motor ...

For thousands of years, gears have functioned with solid teeth to turn the wheels of the world, from chariots to clocks to engines. Now, scientists have shown that it is possible to transmit motion ...