Wang Yusheng, former director of China Science and Technology Museum, participated in a science popularization activity at Chongqing Mingyuan Future Primary School. Five white-haired bloggers tell their own stories of "touching the net" "Silver-haired knowledge broadcast" spreads "hardcore knowledge" with the most "trendy" "Popular science" is actually scientists reporting to the society, so that the people know what you have done and what is the use of what you do.