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user: lingzb created: 2018-05-04 karma: 178 submissions: 0 points | 0 comments 0 points | 0 comments 0 points | 0 comments 0 points | 0 comments 0 points | 0 comments Lime and Bird are growing rapidly 219 points | 472 comments 0 points | 0 comments 0 points | 0 comments 0 points | 0 comments 0 points | 0 comments Science in Iran languishes after Trump re-imposes sanctions 3 points | 0 comments 0 points | 0 comments Why “Uber for X” startups failed: The supply side is king 3 points | 0 comments Uber and Airbus Enlist in Japan’s Flying-Car Plan 1 points | 0 comments Real-World Relativity: The GPS Navigation System 1 points | 0 comments India aims to send astronauts into space by 2022, Modi says 4 points | 0 comments 0 points | 0 comments 0 points | 0 comments 0 points | 0 comments Cheap Natural Gas and Renewables Could Close Half of US Coal Fleet by 2030 1 points | 0 comments The World Is Cracking Down on Bitcoin–Except Japan 4 points | 0 comments 0 points | 0 comments 0 points | 0 comments 0 points | 0 comments Schools are using AI to track what students write on their computers 1 points | 0 comments 0 points | 0 comments 0 points | 0 comments 0 points | 0 comments Global Unicorn Exits Hit Multi-Year High in 2018 2 points | 0 comments 0 points | 0 comments