You're working late on your computer one night and all of a sudden the power goes off. All your unsaved work goes to waste and you start cursing the electricity company as you have to do everything all over again. Don't you wish you had a UPS? A UPS, or an uninterruptible power source, is an electronic devi... |
11 July 2008
09:09 GMT |
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An electromagnet is a device used to generate a magnetic field with the help of an electric current. The principle that electromagnets work by is used in a wide range of electric and electronic devices such as electric motors, solenoids, tape drives and even speakers and microphones. The simplest electromagnet you ca... |
24 May 2008
07:00 GMT |
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Electromagnetic coils, most commonly known as inductors, are amongst the simplest electric and electronic components. They basically consist of a simple metal electrically insulated wire looped into a cylindrical, toroidal or even disk-like shape, with the role of providing inductance in an electric circuit. Inductan... |
30 April 2008
06:41 GMT |
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Measuring the mass of macroscopic objects is relatively easy, however when we're talking about elementary particles with masses lower than E-30 kilograms (one followed by 30 zeros!), the mass of the electron, things tend to get rather complicated. Usually, the mass of particles is calculated through mathematical... |
13 February 2008
09:25 GMT |
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Oh no... it's starting again! I mean I like all these energy converting devices that try to harness the full potential power resulted during a natural physical process, but what's enough is enough. I know the universe is all about energy and all the different ways it is converted, but all the trouble one ha... |
22 January 2008
10:59 GMT |
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It seems that the spacecraft Cassini-Huygens has been rather busy lately, as scientists are now flooding us with new information regarding planet Saturn. The spacecraft, designed in a collaboration between the European Space Agency and NASA, is currently being operated by the NASA Jet Propulsion Laboratory, and has r... |
13 December 2007
08:44 GMT |
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