An LED light that runs on rope pulls and gravity has been developed, which could be good news for developing countries without access to stable lighting. GravityLight, a crowdfunding campaign and ...

With most of us in the developed world more concerned about the flow of electricity to power our computers, TVs and all manner of other wonders of the modern age, it’s easy to forget the massive ...

A British company hopes to bring electric light to 1.5billion people who live off the grid with an incredible electric light that is powered by gravity. The GravityLight uses a sack of sand to ...

On the simplest level, GravityLight converts gravitational energy into light, just like its name promises. That's right, you lift a bag filled with 20 pounds of stuff (sand, earth, whatever) and ...

Gravity energy storage is not exactly at the center of energy-related debates. However, it does have some admirable qualities. One is that such systems can be designed to last a lifetime. This is very ...

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 ...

The team of designers behind a light that is powered purely by the force of gravity have finally put their creation into production. Deciwatt, the group behind the light, says the invention will ...