Hellow guys, Welcome to my website, and you are watching 50년 연구 도시 대전이 과학에 풍덩! ...대한민국 과학축제 개막 / YTN 사이언스. and this vIdeo is uploaded by YTN 사이언스 투데이 at 2023-04-27T22:10:13-07:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.