The knot is a non-SI unit that is accepted for use with the SI. Worldwide, the knot is used in meteorology, and in maritime and air navigationâfor example, a vessel travelling at 1 knot along a meridian travels approximately one minute of geographic latitude in one hour.
Hagia Sophia (from the Greek: á¼Î³Î¯Î± ÏÎ¿ÏÎ¯Î±, Byzantine Greek [aËÊia soËfia]), Holy Wisdom; Latin: Sancta Sophia or Sancta Sapientia; Turkish: Ayasofya) was a Greek Orthodox Christian patriarchal basilica (church), later an imperial mosque, and now a museum (Ayasofya MÃ¼zesi) in Istanbul, Turkey.
Isidore of Miletusâ nephew, Isidore the Younger, introduced the new dome design that can be viewed in the Hagia Sophia in present-day Istanbul, Turkey. After a great earthquake in 989 ruined the dome of Hagia Sophia, the Byzantine officials summoned Trdat the Architect to Byzantium to organize repairs. The restored dome was completed by 994.