Crowdsourcing power to the poor in Nigeria
Small businesses are bringing solar power to the most rural areas of Nigeria. For these companies crowdfunding is one of the few ways to get the cash needed for their big investments.…
Belgian scientists turn urine into drinkable water
A team of scientists from Belgium build a machine that turns urine into drinkable water and fertilizer using solar energy, a technique which could be applied in rural areas and developing countries.…