CARDBOARD BIKE

摘要

One day in 2009, Israeli engineer lzhar Gafni sat in a quiet library designing a machine to extract seeds from pomegranates when his mind drifted to cycling, his favorite pastime. Gafni admired bikes made from sustainable bamboo, but their high cost seemed prohibitive. He wondered, Why not make them from cardboard, instead? Over the next two years, Gafni learned to fold cardboard sheets into the strongest possible shapes; his experimentation led to robust structures resembling honeycombs and bird nests. He then spent another , year crafting the material into bicycle components. "I almost felt like the Wright Brothers going into unknown territory," he says.