Each one is a self-contained closed-loop actuator, available across a wide spectrum of price and torque ... They are mechanically similar to the RC hobby servos we all know and love: a gearmotor ...

[Niklas]’ RC beer crate sits at the simplicity end of the spectrum, reminding us of the no nonsense Star Wars mouse droid that wandered the Death Star’s corridors. The beer crate sits on a low ...

There's lots to discover in the electromagnetic spectrum. Here's a tour that begins with radio waves and takes you through microwaves, infrared radiation, light, ultraviolet radiation, and X-rays.

(Bloomberg) -- Senate Republicans are considering a massive sale of radio spectrum intended to generate billions of dollars to help pay for President Donald Trump’s agenda and free up airwaves ...