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  • ...thus are not optimal spectra for most plants. Thus, most artificial light sources need to use several different types of artificial light in combination in o ...ter, depending on the plant species. This makes natural lighting far more energy efficient.
    21 KB (3,373 words) - 04:02, 21 January 2009
  • ...rmal means. In contrast, Helium-3 itself is non-radioactive. The lone high-energy proton produced can be contained using electric and magnetic fields, which ...ion experiments have produced Q values >1, ie where energy output exceeded energy input; however break-even here probably refers to ignition of the plasma, o
    5 KB (819 words) - 04:02, 21 January 2009
  • [[Category:Energy Sources]]
    4 KB (579 words) - 04:02, 21 January 2009
  • ...y released through other means, this is very much negligible. It is enough energy to make the 13 MeV figure accurate, though. ...rly often confused), by the addition of Beryllium to the Lithium, the high energy particles can cause the Beryllium nucleus to split. The reaction is:
    5 KB (805 words) - 10:22, 1 September 2010
  • ...s. RTGs can be considered as a type of battery and have been used as power sources in satellites, space probes and unmanned remote facilities. RTGs are usuall ...hermoelectric device that converts thermal energy directly into electrical energy using the Seebeck effect. It is made of two kinds of metal (or semiconducto
    10 KB (1,596 words) - 04:43, 24 August 2010
  • ...Shaped_Fixed_Array.jpg|thumb|A Solar Panel Array Shaped to Catch the Most Energy During the Day]] ...sunlight per day, a heliostatic array could produce 28.8 MJ of electrical energy per day, or an average of about 330 W over a 24 hour day. Thus, a 1kW heli
    14 KB (2,351 words) - 04:02, 21 January 2009
  • [[Category:Energy Sources]]
    2 KB (293 words) - 04:02, 21 January 2009
  • ...es and return to the same state. They are used as a means to transfer heat energy into work. Some common thermodynamic cycles are the [[Carnot Cycle]], the [ ...sure difference into mechanical energy, which is converted into electrical energy via a generator. The pressure difference can be created by obstructing a fl
    4 KB (711 words) - 04:02, 21 January 2009