developing countries

Gravity Light: Did you know that 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. A commonly held view is that solar powered lighting is the answer to these problems […]

Gravity Light: Did you know that 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. A commonly held view is that solar powered lighting is the answer to these problems