Don't have Telegram yet? Try it now!
http://kak-nauchitsia.ru/2016/05/03/%d0%ba%d0%be-%d0%b4%d0%bd%d1%8e-%d0%bc%d0%b5%d1%82%d1%80%d0%be%d0%bb%d0%be%d0%b3%d0%b0-%d1%81-%d1%8e%d0%bc%d0%be%d1%80%d0%be%d0%bc/
КО ДНЮ МЕТРОЛОГА. (с юмором)