We already discussed this experiment some time ago when we told the story of the Solar Bottle Bulbs. The project was created ... candles or other sources of light. A study conducted at the University ...

If you don't drink wine, there are glass water bottles that you can use. However, if they're clear bottles, they'll emit ...

Liter of Light helps poor communities around the world assemble their own lights using old recycled plastic bottles. They start with day lights which are made by filling the bottles with water and ...