A new lantern is powered by gravity.
Designers in London have recently created a lantern which is powered by gravity. Dubbed the GravityLight, the new invention could drastically help poor communities, who either don’t have any source of lighting or resort to dangerous kerosene lamps, which can cause severe burns. The light is inexpensive.
When it hits shelves, it is expected to sell for approximately $10. A bag is connected to the lamp. That bag can hold around 20 pounds of dirt or rocks, which can act as a fuel when combined with the effects of gravity. The bag descends under the weight which then
'triggers a set of gears that translate the force into power and light. 'An LED bulb resides inside of the lantern.
The first 1,000 GravityLights produced will be given to villagers in Africa and India for free. According to the creators
“It takes only 3 seconds to lift the weight which powers GravityLight, creating 30 minutes of light on its descent.”