Before the digital age, when transistors were expensive, unreliable, and/or nonexistent, engineers had to use other tricks to ...

A Purdue University researcher has created and validated a patent-pending free-flying robotic centrifuge system called GRAVI-BOT for research and process applications in crewed spaceflight.

The key is a generator, which uses the properties of electromagnetic induction. In wind turbines, the rotor is connected to a shaft, which in turn enters an electrical generator made out of an ...