A Parametric Amplifier
June 2014
Get into the swing of mechanical resonate oscillators by constructing this simple pendulum.
Simple Shaded Pole AC Motor
January 2005
As early as 1821, Michael Faraday demonstrated that continuous rotary motion could be produced by passing a DC (Direct Current) current through a wire in the presence of a magnetic field.
Build An East-West Compass
December 2006
Nicole Kidman and Mel Gibson live down under. Does that mean we live up over? We learn at an early age which way is down. Down is where your feet are when you walk and down is the direction you fall. Gravity dictates the downward direction. If you found yourself aboard the International Space Station, you would be in zero gravity and couldn’t tell up from down...
