On a movie set, every scene and every take gets "slated" during filming, and there's that distinctive clap sound we all know. But what's it for?... 'Clap!' On Set, The Signature Sound Of The Slate ...

Home automation isn’t all that new. It is just more evolved. Many years ago, a TV product appeared called the Clapper. If you haven’t heard of it, it was basically a sound-operated AC switch. You plug ...