Scientists have demonstrated that light can be used to lift objects with photoswitchable molecular machines, but the ambition of many research groups is to move beyond light-switchable machines; it is ...

When high torque, a tight design, and always-reliable gear motors are required, worm gear motors rise to the top. Such systems are effective in many cases, such as a worm gear motor for robotics and a ...

The most reliable means for changing shaft speed remains a mechanical variable-speed transmission. These drives are used to provide a variable output speed from a constant-speed power source (as in a ...

The challenges of fabricating micromotors and geartrains with comparable size to a human cell. The problems of powering such motors. How metasurfaces allow projected laser output to power these ...