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Home > News > Tags > electric energy
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Stories about: electric energy |
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Experts in Japan and Germany announce the development of a new device that can convert sound waves into spin current. The electricity can then be transferred through a standard wire. Through this approach, it is also possible to obtain magnetic energy as well.
The research was led by PhD student Ken-ichi Uchida a... |
20 September 2011
10:08 GMT |
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As its name says, a surge protector is a device specially designed to protect electric and electronic equipment against surges. An electrical surge is a phenomenon during which the voltage of the electrical current supplied by the outlet greatly exceeds the standard voltage. In the United States, the standard voltage... |
1 July 2008
08:39 GMT |
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Lithium-ion batteries are a type of rechargeable batteries that work by exploiting the movement of lithium ions between the anode and the cathode. Due to their low weight to power ratio, lack of memory effect and the slow rate of charge loss, they are currently the most popular type of rechargeable batteries availabl... |
11 June 2008
08:32 GMT |
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Think of a conventional wind turbine. You will most likely imagine a giant platform towering several tens of meters in the air on which a 15 meter long blade spins wildly. It doesn't seem to be very practical, does it? That's because it's not. The solution may be in scalable wind turbine designs, which... |
27 May 2008
04:41 GMT |
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Often referred to as mike or mic, the microphone first became commercially practical with the invention of the carbon microphone by Thomas Alva Edison in October 1876. Back then microphones were called transmitters. Practically, the microphone is an electronic device capable of capturing minute air pressure waves or ... |
8 May 2008
08:40 GMT |
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One of the problems related to implementing hydrogen technology in today's cars, aside the relative low efficiency of fuel cells, involves the fuel itself - hydrogen, a gas, the lightest element known in the universe and at the same time the most abundant. After more than 13.7 billion years, hydrogen still makes... |
7 May 2008
06:47 GMT |
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A steam engine is an external combustion heat engine, used to convert heat energy into mechanical work. It was first invented about three centuries ago and quickly became widespread throughout the world, mostly used for steam locomotives. Even today steam engines are extremely popular, although they are not used anym... |
14 April 2008
09:29 GMT |
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During an experiment carried out in South Baldy Peak, New Mexico, European researchers using a high-power laser deliberately triggered electrical activity in two passing thunderstorms. Laser pulses created plasma filaments inside the clouds, through which electric current was discharged inside the clouds. However, no... |
14 April 2008
06:42 GMT |
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What do you do when your computer starts acting up? You blame the power supply of course! Not surprisingly, the reaction is both natural and justified because the power supply is in fact one of the most important components of a personal computer and the first one to be verified in case your machine fails. Power supp... |
11 April 2008
09:05 GMT |
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Current solar cells available on the market have a conversion efficiency of about 25 percent. However, these are expensive silicon-based cells; dye-sensitized solar cells are much cheaper, but are half as efficient as silicon-based cells. Researchers from University of Washington believe that they can make dye-sensit... |
11 April 2008
08:10 GMT |
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Nuclear fission reactors produce high amounts of relatively clean electric energy by burning nuclear fuels, such as uranium. Higher-efficiency nuclear fuel is required for the next generation of nuclear reactors, which will burn longer and stronger to produce even higher amounts of energy. However, researchers say th... |
10 April 2008
05:42 GMT |
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Who needs petrol or money for that matter as long as 'green gasoline' exists? Iraq war is over, fellas, you can go home now, because scientists have just discovered a way to convert biomass into a liquid very similar to standard gasoline. Furthermore, the University of Wisconsin-Madison also claims to have ... |
9 April 2008
08:42 GMT |
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Nuclear reactor cores are mainly cooled with the help of water, however if the water cannot remove the heat quickly enough from the core, the nuclear fuel might explode. In fact, this was the reason why the Chernobyl nuclear reactor failed in 1986; the core didn't receive enough cooling water, the heat build up ... |
31 March 2008
09:35 GMT |
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Scientists say hydrogen is the way to go in the future. There's plenty of hydrogen all around us, it is completely environmentally friendly and can provide the energy required to power our cars. No sweat, we'll be having fuel cell cars in no time! However, while harnessing its power would be no problem, sto... |
10 March 2008
11:12 GMT |
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What is the first thing that comes to your mind when you hear: solar-energy powered cars? Let me guess... big ugly solar panels, right? That's about to change real quick, so say a couple of researchers from the United Kingdom. Instead of using solid heavy large silicon solar panels, scientists propose the use of... |
7 March 2008
10:34 GMT |
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When it comes to weapons, the U.S. Navy never seems to have enough of them or to make them as deadly as they wish them to be. Yesterday, engineers employed by the U.S. government tested an improved railgun design that is able to output a total power of 10 megajoules, breaking the record of the previous railgun, which... |
1 February 2008
07:00 GMT |
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Severe drought raging across the southeast regions of the United States will probably determine a temporary reduction in electric power production capabilities of most of the nuclear plants, or even shutdowns, until the water levels in the rivers that supply the lakes near the power plants rise again to their normal ... |
24 January 2008
09:49 GMT |
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About one year ago, the Eestor company hit the news headlines around the world claiming that they had designed a new capacitor capable of storing 2.5 times more electric energy than the traditional Li-ion batteries and would have only a fraction of the weight, volume and manufacturing costs. There is only one problem... |
14 January 2008
06:29 GMT |
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The first ever public electric power distribution system appeared in the late 19th century and mostly supplied direct currents, with multiple output voltages, or under the form of alternating current, which reverses the polarity of the current every 20 milliseconds. However, the energy demand and the advantages that ... |
28 December 2007
10:12 GMT |
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All the electric power we consume on a daily basis is created continuously and step-by-step. If all the electric power generating plants stopped, or had serious critical failures, there would be no alternative to generate power, as none of the produced electricity is ever stored for future use, due to the inefficienc... |
28 November 2007
09:51 GMT |
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