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.
Justinian's monuments in Istanbul include the domed churches of Hagia Sophia and Hagia Irene, but there is also an earlier, smaller church of Saints Sergius and Bacchus (locally referred to as Little Hagia Sophia), which might have served as a model for both in that it combined the elements of a longitudinal basilica with those of a centralized building.