Sometimes the simplest things hold the key to understanding complex effects. It turns out that a humble metal pull-chain-just like those used on ceiling fans-can be a pretty good model for complex ...

Yay! Another videoconference call is in the books, so that must mean that it’s time to fumble around awkwardly for the hang-up button with a fading smile. [lanewinfield] knew there had to be a better ...

Q: I have a ceiling fan light kit with a pull-chain that turns the light on or off. The problem is that the pull-chain is frozen and won’t pull to turn the lights on or off. How can I go about getting ...