Printer Ink From Car Tires

Printer ink can cost as much as vintage champagne, so finding an inexpensive and eco-effective way to make would be great. Now three inventors from Derbyshire, UK, think they have just the solution: extract the carbon from unwanted tires to generate a cheap and plentiful supply.

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Portable, Motion-Detecting LED Lights

Portable, motion-detecting LED lights are an efficient way to light rooms at night for a few minutes. This portable light from Maxxima, turns on when you enter a room in the dark (similar to motion-detecting outdoor lights), then turns off after 30 seconds of non-motion. It runs on four AA batteries (we suggest using NIMH […]

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Flexible Solar Panels

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If you boat, hike or are basically remote, these panels are the most portable way to produce electricity yet devised. The panel above, weighing 4.7 pounds, produces 32W of 12V power, and rolls up so you can pack it. They are extremely durable and can withstand rain or being stepped on. Best Price: $268.75 (AltEnergyStore)

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