More about Magnetic (157)

10-12-2013 | Together with researchers at Würzburg University, physicists at the Vienna University of Technology have developed a method to control and m...

10-12-2013 | Direct current resonance is a new technology that converts direct current electric energy into electromagnetic field energy and uses a newly...

1-09-2011 | Now you can forget all about magnetised needles on their pivots for finding magnetic North. And it doesn’t matter if you live in the Souther...

1-11-2010 | A characteristic property of DC motors is that they can also act as generators, due to the complementary nature of Faraday’s and Lenz’s laws...

1-11-2010 | Since the famous compass that Ampère christened a ‘galvanometer’, two successive types of voltmeter have held sway. The first of these combi...

1-07-2010 | If you’re short of inputs on your amplifier, but it has an input for a magnetic pickup with RIAA correction, this very simple project will l...

1-07-2010 | The object of this circuit is turn the domestic lighting on and off in complete safety in a room with very high humidity. A detector, flush-...

1-11-2009 | There’s no stopping technological progress, including Class D amplifier technology. New developments reduce the amount of electromagnetic in...

1-12-2008 | If you fit a line of LEDs on a circular PCB and power them on continuously, they generate rings of light when the board is spun. If you add...

1-11-2008 | Measuring angles has until now involved a choice between potentiometers and optical encoders. Potentiometers are inexpensive, but have the d...