A 180-degree turn: old cell phones are back in the spotlight thanks to two young inventors who turned them into a product worth its weight in gold
Old handsets gathering dust may crunch data instead of wasting space, thanks to an ingenious modular frame dreamed up by two University of Tartu students. Each year manufacturers ship over 1.2 billion new phones, and millions of functional devices slide straight into junk drawers. Engineering whizzes Huber Flores and Zhigang Yin offer a smarter ending: snap several phones … Read more