More about DC (398)

3-11-2011 | The European Commission, accused of timidity and irrelevance in the eurozone crisis, has launched bold proposals to involve the European Uni...

12-07-2011 | Satellite signals, mobile phone communications, radio broadcasting. The air around us is full of artificial radio waves. Now, researchers ha...

1-07-2011 | This deluxe solar-powered light uses a battery and solar cells salvaged from a solar lamp with a four-cell battery (4.8 V nominal terminal v...

1-07-2011 | Good old electromechanical relays are relatively expensive where any significant current has to be switched and switching times must be shor...

1-07-2011 | When testing circuits and fault finding there is often a need to inject a defined DC voltage level at some point on the circuit. It may, for...

30-06-2011 | The technical, economic and political obstacles to the famous Desertec vision are considerable. It seems much simpler to increase renewable...

6-06-2011 | Electric vehicle parts are not evolving: they are changing completely. Sometimes, the traction battery will be replaced by a supercapacitor...

14-03-2011 | On 8 March 2011, members of the International Confederation of Energy Regulators (ICER) and the International Gas Union (IGU) participated i...

10-03-2011 | Ireland is planning to take a giant leap in wind power capacity, propelling it to a leading position in Europe. The government wants to incr...

7-02-2011 | The significance of the BP-Rosneft deal has not been sufficiently appreciated by mainstream media, argues energy analyst Matthew Hulbert. Ac...