@uraan_stories_official: This 1,200-Year-Old Jar Hid One Liquid and Poured Another. The Banu Musa used separate chambers and a hidden hole in the handle to control air pressure inside a trick jar. Covering the vent changed which liquid could reach the tap, making the vessel seem almost magical. Part 7. #BanuMusa #IslamicHistory #MedievalEngineering #AncientTechnology #HistoryTok