June 29, 2003 May 30 (��δ years), the National Science Popularization Day of Action.


June 29, the National Science Popularization Day of Action. China Association for Science and Technology from 2003 to June 29 of each year as the National Science Popularization Day of Action, called on the National Association for the system and science organizations at all levels to actively publicize and implement the "Science and Technology of the People's Republic of China universal law after June 29, science popularization activities carried out in the whole society.
reviews: the popularization of scientific knowledge, to improve the quality of