![]() ![]() ![]() ![]() ![]() ![]() The Gravitylight: Lighting For Developing Countriesby bill - 2013-01-02 ( education / tech / help / charity ) [html version]
This is so cool! "GravityLight is a revolutionary new approach to storing energy and creating illumination. It takes only 3 seconds to lift the weight which powers GravityLight, creating 30 minutes of light on its descent. For free."And here is a "less old" link.Their second fundraising campaign has also expired, but you can still how well they did. blog version similar posts here ... and elsewhere CommentsWe enjoy free speech. Try not to offend, but feel free to be offended.Leave a new comment regarding "the-gravitylight-lighting-for-developing-countries":rebuild (610) |