Basics of Astronomy: The Celestial Sphere medtech منتشر شده در تاریخ 1396/05/20 A series of videos explaing basics of Astronomy from the Big Ban and creation of the Univers, Time and Space down to Solar Syste ... A series of videos explaing basics of Astronomy from the Big Ban and creation of the Univers, Time and Space down to Solar System همه توضیحات ... #تحصیلات_و_یادگیری #استوای_سماوی #معدل_انهار #the_celestial_sphere