Comparison of a 5W laser, 10W, and 20W diode laser. All these machines have their pros and their cons, but this is a quick ...

Mariska Hargitay and Chris Meloni Carry On Cute Emmy Awards Tradition: See Photos Some people need to drink a big old glass ...

Radio experimenters often need a variable capacitor to tune their circuits, as the saying goes, for maximum smoke. In decades past these were readily available from almost any scrap radio, but the ...