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Top 10 Tech Stories This Week: NASA's night photos, gravity-powered lights, best in DIY in 2012, and more!

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credit: TreeHugger

Top 10 in Tech

This week, a bulked up robot to clean up Fukushima, how to actually save energy with your so-called energy-saving television, going to the emergency room via Skype, the best of DIY in 2012 from projects to essays and more!

Scroll through the slides to catch up on the best from the week.

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