18 items | 4 visits
carlos a's List: Technology & Science
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Humans, for example, have more microorganisms within the body than cells, with just the intestine containing up to 100 trillion microbes, a number about 10 times greater that all our cells.
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Since only a small amount of electricity is required to power the pump, compressor and fan, geothermal systems deliver up to four times more energy than they consume.
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First Solar and Tellurium
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Geo Direct system uses the NU22 refrigerant
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The most efficient fuel-burning heater can reach efficiencies around 95%, but a geothermal heat pump can move up to 4 units of heat for every unit of electricity needed to power the system, resulting in a practical equivalence of over 400% efficiency. To learn more about GeoExchange, select a topic from the GeoExchange Explained menu above.
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Jul 01, 08
GM claims that next-generation lithium ion batteries will allow the Volt to travel up to 40 miles ...
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Lithium ion batteries are significantly lighter and more powerful than the nickel metal hydride batteries used in today's hybrids.
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According to the latest announcements from GM, the new batteries will allow the Volt to travel zero to-sixty in less than nine seconds, deliver fuel economy of approximately 150 mpg, and will last for 10 years or 150,000 miles.
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Hope for Energy Cost Effective Solar Technology?
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A new system from SolarWall, the SolarDuct PV/T, offers a combination of solar photovoltaic and solar thermal in one assembly providing a means to heat and power from the sun with one product.
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