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POPSHow to Recycle your e-Waste A lot of old equipment never makes it to be recycled or dumped in a landfill, and instead languishes for years in a closet or storage area. Why not recycle that equipment or donate it to a nonprofit such as the National Christina Foundation?
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POPSEvidence for the Big Bang (Talk.Origins FAQ) This could not be a better overview of the Big Bang model of the beginning moments of the universe. This is not an easy subject, so it is not surprising that it is so misunderstood. I particularly recommend Common misconceptions about the Big Bang and What does the theory really say? to get a grasp on the theory. Then glance at the converging lines of observational evidence to see why no other theory fits the data as well. I think this is fun stuff.
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POPSHow to be an "Energy Star" "I asked the Energy Star people for some recommendations for smart, energy-conscious computing. Let's face it, electricity is getting more expensive, and some common methods used to produce it are contributing to the greenhouse gases that are accelerating global warming. No matter how you slice it, cutting down energy consumption—however small the individual contribution—is worth doing personally, financially, and globally."