The principle is simple and seductively clever: solar lights that store energy during the day and release light at night. These can be purchased ready-made in a variety of colors (yellow, blue and red ...

Discover how to create a functional DIY solar panel using a compact disc, copper foil, aluminum foil, and LEDs in this ...

A project called 'Liter of Light' is hoping to bring light to places that need it most, by using DIY lamps made from plastic bottles. Mashable caught up with the founder of the project to hear how it ...