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--- luminous:glossary [2008-02-23 12:49] – takufoam
+++ luminous:glossary [2008-02-23 12:50] – takufoam
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 - //Trombe wall:// is a very thick, south-facing wall, which is painted black and made of a material that absorbs a lot of heat. A pane of glass or plastic glazing, installed a few inches in front of the wall, helps hold in the heat. The wall heats up slowly during the day. Then as it cools gradually during the night, it gives off its heat inside the building.
-Peak Watt: is the amount of power produced when the module receives 1,000 watts per square meter of exposure to the sun (insolation). It is used for rating PV-Systems.
+**Peak Watt:** is the amount of power produced when the module receives 1,000 watts per square meter of exposure to the sun (insolation). It is used for rating PV-Systems.
-Photon: refers to a "packet" of light, but something no one has ever isolated, described, or measured individually in any way. Since the "wave theory" of light is unable to explain the way light travels across the vast vacuum of space, a "particle theory" became necessary. It has proved a useful model, as it also explains the way the photoelectric effect works. Physicists find it very convenient to be able to switch back and forth between models when explaining the way light works. Some day they may find a unifying theory. Meanwhile, light is a wave, or a photon, depending...
+**Photon:** refers to a "packet" of light, but something no one has ever isolated, described, or measured individually in any way. Since the "wave theory" of light is unable to explain the way light travels across the vast vacuum of space, a "particle theory" became necessary. It has proved a useful model, as it also explains the way the photoelectric effect works. Physicists find it very convenient to be able to switch back and forth between models when explaining the way light works. Some day they may find a unifying theory. Meanwhile, light is a wave, or a photon, depending...
-Peak oil: is the point in time when the maximum rate of global petroleum production is reached, after which the rate of production enters its terminal decline. If global consumption is not mitigated before the peak, an energy crisis may develop because the availability of conventional oil will drop and prices will rise, perhaps dramatically.
+**Peak oil:** is the point in time when the maximum rate of global petroleum production is reached, after which the rate of production enters its terminal decline. If global consumption is not mitigated before the peak, an energy crisis may develop because the availability of conventional oil will drop and prices will rise, perhaps dramatically.
 Photovoltaic effect: the generation of a voltage and/or a current by absorption of light in some material or combination of materials.