See­ing the light

Element - - Clean Technology -

There are cur­rently over 1.5 bil­lion peo­ple in the world who have no re­li­able ac­cess to mains elec­tric­ity. Th­ese peo­ple rely, in­stead, on biomass fu­els (mostly kerosene) for light­ing once the sun goes down. En­ter the Grav­ity Light. Still at con­cept stage, the Grav­ity Light will cost less than $10, does not have bat­ter­ies, and is pow­ered by, as the name sug­gests, grav­ity. Users fill a can­vas bag with rocks or gravel, at­tach it to the hang­ing light, and the gear­ing as the bag slowly drops will power the light for half an hour. The Grav­ity Light cre­ators are ap­peal­ing for fund­ing to take their cre­ation to the world. To find out more visit de­ci­watt.org

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