» Матеріали за 25.11.2018
Опублікував admin1 в категорії Анонси | Дата 25-11-2018, 21:43
15x4 is a popular science project that makes the world a better place, these are non-commercial events in the cities of Europe and the CIS. We make free educational meetings, the part of which are four popular science lectures lasting fifteen minutes.