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As Design Boom reports, researchers at the Swiss Federal Institute of Technology (EPFL, École polytechnique fédérale de Lausanne) have created a an edible drone prototype that can be dispatched to stranded hikers and mountain-climbers to provide a life-sustaining emergency meal whilst waiting for help to arrive. Acknowledging the limitations on payload for most aerial craft—usually only up to thirty percent of their own weight, developers concocted a way to make the structure part of the delivery with rice-cake wings.