Hellow guys, Welcome to my website, and you are watching 지구 표면이 또 하나의 비유클리드 기하학이라고? (유클리드 기하학 #5). and this vIdeo is uploaded by 김필산의 사이언스비치 at 2020-10-29T03:00:01-07:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.
