What do series and parallel circuits have to do with Christmas lights? In this episode of Crash Course Physics, Shini walks us through the differences between series and parallel circuits and how ...

It can be a daunting subject for the uninitiated, but never fear — Adam Zeloof delivered a talk at Supercon 2019 that’s a perfect crash course for ... when designing circuits to avoid nasty ...

Nearly all the track circuits on Metrorail have been tested and passed inspection since the fatal crash on June 22 and nearly all older cars have been moved to the center of the trains ...