Watch this origami drone tackle a crucial problem with drone delivery

ZDNet 

This folding drone caught my eye for its elegance. Researchers from NCCR Robotics, and the Floreano lab at the École polytechnique fédérale de Lausanne (EPFL) in Switzerland drew inspiration from origami and folding space shelters to create this cargo drone. Its foldaway cage helps protect bystanders and untrained operators from whirling rotors--a big concern with delivery drones. But the cages add bulk, making the drones hard to store.