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Saturday, November 21, 2009

Electricity on the Go

When something is powered, a basic transaction occurs: energy from a given source is captured then converted to perform specific tasks. For solar energy, this happens when sunlight is collected by panels where a semiconductor, usually silicon, converts it to electricity. Solar energy is renewable and readily available and has no toxic byproducts. Until the sun burns out on its own accord, this seems the perfect energy source. Yet, for as attractive as it is, solar power comes with a set of problems. For one, it is very expensive to install a solar-energy system that can supply all ...

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