In Rwanda, known as the “Land of a Thousand Hills,” trips to rural villages can take four hours by truck (in the dry season). In that terrain, delivering lifesaving medical supplies was often an impossibility. Now though, a Bay Area company named Zipline, working in conjunction with the Rwandan government, has introduced a fleet drones that make the trip in about 15 minutes. The drones fly about 60 mph, circle their target, and deliver their cargo by parachute (with an accuracy of a few parking spaces). Well done!