Biological rotary motors can alter their mechanical function by changing the direction of rotary motion. Achieving a similar reversal of direction of rotation in artificial molecular motors presents a ...

This file type includes high resolution graphics and schematics when applicable. Engineers who want to measure and control rotating antennas, fluid flow direction, or a robotic arm joint can now use a ...

Generally speaking, the gear mechanism of automobiles and bicycles is usually to increase or decrease the rotation speed in one direction, but by using a special mechanism it is possible not only to ...

There is no definitive rule regarding the direction of rotation which is determined how the forces are acting on the electrical coils in the motor of the fan. Why do the blades of a ceiling fan rotate ...