Energy innovators around the world plan to harvest more power from abandoned coal mines, but not by digging up dirty deposits. Instead, this concept utilizes gravity and renewable energy to transform ...

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 ...

Dutch inventor Janjaap Ruijssenaars has built a gravity energy generator that harnesses the force of gravity to produce a new kind of renewable energy. Matthew Stock reports.

GravityLight is a social and environmental innovation that is giving people all over the world the opportunity to bring light into their homes without the need for electricity, batteries, solar power, ...