10 de Febrero, 2011
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If you’re looking for a high performance camera with great image quality, you should get a digital SLR, right?
Well yes, DSLRs are top-drawer picture-takers. But they’re bulky and they weigh a ton. They also aren’t exactly the most discreet cameras out there — put a long zoom lens on a DSLR and try to take it to a pro sporting event or a rock concert and, unless you have a press pass, you’ll be sent packing.
A far less conspicuous and more portable option is the Canon PowerShot G12, a compact,... Continuar leyendo |
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publicado por
diegobunny a las 22:19 · Sin comentarios
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10 de Febrero, 2011
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The glaring loophole in what was hailed as the nation's first solar water heater mandate won't be closed this year. If anything, it might be getting wider.
Senate Bill 1372 proposes to shift responsibility for administering a key exemption to the law from the state to the individual counties.
A two-part Civil Beat investigation in November — Part 1 and Part 2 — revealed that more than 20 percent of new homes permitted in the first ten months of 2010 were set to install not solar-powered but... Continuar leyendo |
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publicado por
diegobunny a las 22:15 · Sin comentarios
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10 de Febrero, 2011
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Buffeted in some quarters by opponents of wind farms, the Canadian Wind Energy Association says it plans to do a better job of building support for its members. “One can’t deny there is opposition,” Robert Hornung, president of the Canadian Wind Energy Association, said in interview,... Continuar leyendo |
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publicado por
diegobunny a las 22:12 · Sin comentarios
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10 de Febrero, 2011
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Following years of pressure from green groups, researchers, experts and scientists, the U.S. government is attempting to undo years of neglect in the renewable energy resources sector by offering grants and incentives to companies and developers. It is hoped that, following the realisation that fossil fuels are causing heavy pollution to the world, and are also running out, that providing funding for renewable energy sources will help to change a harmful and wasteful habit. This habit of... Continuar leyendo |
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publicado por
diegobunny a las 22:09 · Sin comentarios
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10 de Febrero, 2011
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Solar Boilers use large parabolic mirrors to focus sunlight on a fluid fuel, most often cited as water or liquid hydrogen, superheating it and expelling the resulting steam for thrust. The sunlight is collected and focused using large, lightweight parabolic mirrors. These mirrors are either silvered balloon-like inflatable structures or thin sheets of silvered plastic supported by lightweight inflatable trusses. These focus the sunlight on either a window or open area of the engine, either... Continuar leyendo |
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publicado por
diegobunny a las 22:06 · Sin comentarios
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