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This Coke bottle lightbulb could help illuminate Africa

Even though the lightbulb was invented in the 19th century, a combination of poverty and lack of electricity infrastructure means that two billion people still live in complete darkness when night falls. Many rely on non-renewable and dangerous paraffin fuel to light their communities, which is why we’ve seen a number of initiatives that hope to bring sustainable and safer options to developing nations, even including lamps powered by gravity. Our latest spotting is The Lightie, a system that uses an empty bottle and a solar filament to provide cheap light in the places that need it most.