A photo from open sources
Kerosene lamps are still used in remote rural areas. areas. But they are a serious problem because they are harmful to human health and the environment. In one of the startups It is proposed to use another, environmentally friendly resource, accessible to all in abundance – gravity. GravityLight – the invention that matches its name: it supports light due to the energy of gravity. In the process of falling, the attached load (about 9 kg) pulls on the cord passing through the device, and launches a generator that converts the energy of a falling load into light energy. (It looks like the principle of a manual generator, but only vertical). The load is set in a couple of seconds, and, as of how it slowly reaches the earth, enough is produced energy to maintain light for 30 minutes. If the cargo reinstall every half hour, we get environmentally friendly, continuous stream of light without any batteries. This process is applicable. and in other similar cases, for example, for charging devices. Inventors say that at the moment the price of gadgets is less than $ 10, which pays off the investment in three months after refusing kerosene. And if the conversation is about investment, development team has already launched a collective campaign IndieGoGo funding, which means we have a hope to see the embodiment of their ideas in the near future.
Gravity
