Refrigeration without electricity

You don’t always need exotic science to come up with life-enhancing inventions. Case in point is Mohammed Bah Abba’s pot-in-pot rural fridge. The idea is simple, you put a smaller pot inside a larger pot with wet sand between them, cover it with a wet cloth, and the evaporation draws out heat. All that’s required to run it is a little extra water now and then. So now the market traders can keep their goods fresh for up to three weeks instead of three days in subtropical Africa. And if Eskom keeps f**king up, at least we’ll have an alternative handy… [NewMediaExplorer]