Buy hand wind dynamo power bank, alarm siren, radio and flashlight!

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This device could save your life in as a powerful light, it’s a power bank that you can charge with solar power and the hand crank … Read the rest

How to 3D Solar panels MIT discovery (Backyard Revolution)

Building images

MIT news content:

A new dimension for solar energy

Innovative 3-D designs from an MIT team can more than double the solar power generated from a given area.David L. Chandler, MIT News OfficePublication Date:March 27, … Read the rest