#hydraulicclock

Once upon time especially during Hellenistic period, Alexandria was the lighthouse of knowledge which embraced scientists from all around the world..to produce numerous of inventions to serve humanity..and now What!!🎓 A replica of the hydraulic clock of Ktesibios (3rd C. B.C.) #bibliothecaalexandrina ,#hydraulic ,#hydraulicclock ,#ktesibios ,#inventions ,#ancientalexandria ,#hellenistic ,#elenistique,#libraryofalexandria ,#alexandria_egypt ,#science ,#ancientworld (at Bibliotheca Alexandrina) https://www.instagram.com/p/BsYDQciBf8H/?utm_source=ig_tumblr_share&igshid=1020ystzc4rgi