its totally new world by Jerry Zheng https://padlet.com/2691366503/7wt6k2u9xfyz technology change the world en-us 2017-02-21 13:01:47 UTC 2025-10-20 11:36:42 UTC hello@padlet.com its so cold outside , so we have to stay at home , now its time to write a science paper, maybe this can be change the world. haha 2691366503 https://padlet.com/2691366503/7wt6k2u9xfyz/wish/155126042 2017-02-21 13:04:10 UTC https://padlet.com/2691366503/7wt6k2u9xfyz/wish/155126042