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EXCERPT: “Aiming to bring low-cost illumination to residents of the Philippines, a nation of 7,000 oceanic islands, the Salt Lamp uses a free and abundant resource to reduce fire risk from candles and replace the cost of traditional lighting.
Developed by engineer Lipa Aisa Mijena of De La Salle University, the Salt Lamp requires a single glass of water with two tablespoons of salt to provide a night’s worth of a light (complimenting approaches like Liters of Light that work in dark spaces during the day), but, best of all, it can run off the naturally salty water of the surrounding ocean.”
http://weburbanist.com/2015/07/26/salt-powered-lamp-8-hours-of-light-fro...
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