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To wage their war on kerosene lamps and the perils the substance presents, partners Martin Riddiford and Jim Reeves have developed the GravityLight, an LED lamp that runs on gravity ― no electricity ...

A lamp for $5 that does not require any electrical power source? It may sound like an impossible dream, but two designers in London have built functioning prototypes of GravityLight, a cheap way for ...

Martin Riddiford and Jim Reeves, a pair of designers from London, recently grabbed headlines when they published their concept device, GravityLight, to web-based funding site Indiegogo. The reason why ...

As part of a research initiative on how to harness off-grid energy for low-power electronics, a pair of U.K.-based designers created a lamp that... Inventors Design Lamp Powered Entirely By Gravity ...