Building a successful linear motion system starts with choosing the appropriate actuator. Between the different sizes, technologies, and qualities, hundreds of options exist. The trick is to winnow ...

The easiest way to design a linear-motion system is to add components one by one. Then, step-by-step calculations relate input to power dissipated moving a load in a specific amount of time. Linear ...

As frustrating as having an atmosphere can be for physicists, it’s just as bad for astronomers, who have to deal with clouds, atmospheric absorption of certain wavelengths, and other irritations. One ...