Hi Folks A lamp for $5 that does not require any electrical power source? From http://venturebeat.com/2012/12/26/this-5-lamp-is-powered-by-gravity-and-just... "It may sound like an impossible dream, but two designers in London have built functioning prototypes of GravityLight<http://deciwatt.org/#gravitylight>, a cheap way for people in developing countries t0 light homes, recharge batteries, or power a radio. And they just exceeded their Indiegogo fundraising goal <http://www.indiegogo.com/projects/282006> by more than 500 percent with 21 days left in their campaign, so they’ll have the resources to mass-produce the light for less than $5 a unit. Read more at http://venturebeat.com/2012/12/26/this-5-lamp-is-powered-by-gravity-and-just... " Explanatory video http://vimeo.com/53588182 Have a great weekend cheers ashish