RESEARCHER'S NIGHT, Friday, September 29th  2017, in Sofia, Plovdiv, Varna, Ruse, Pleven and more …New attractive competitions are announced, look at:FRESH VIDEO ->https://nauka.bg/fresh-video-2017/FRESH VOICES -> https://nauka.bg/fresh-voices-2017/FRESH GIRLS -> https://nauka.bg/fresh-girls-2017/FRESH...