The first is this makeshift sprinkler being used on the lawn of a hotel in Lilongwe, the capital city of Malawi. I have seen this elsewhere in the city but never anywhere else on the continent or the world for that matter. A great idea! Have you seen it? :)
The second is this electricity-free refrigerator invented by a Nigerian fellow who turned it into a successful business and apparently now sells 30,000 of them a year for a little more than 1 USD a piece. As described on GIZMODO.COM: “Conventional refrigeration does an incredible job keeping food fresh. But that technology hasn’t helped desert dwellers without steady electricity. A more recent development in refrigeration—the Zeer pot-in-pot refrigerator—only requires water, sand, and a hot, dry climate to preserve produce through evaporative cooling. Here’s how to make the simple gadget.” Follow the link to learn how to make your own.