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- Green Technology
- Report says LEDs in short supply
- Save your battery: Unplug your laptop
- Better math saves lots of energy
- Self-contained solar power system is only 9mm
- Recycling robot sorts six types of plastic
- How to make your electronics batteries last longer
- Compact hydroelectric generator can be carried like a backpack
- Many uses for super-charge ion batteries
- Why is Bloom Energy lying to us?
- Device mimics leeches, ejects plug when gadget is done charging