Depending on the species, the airspeed velocity of an unladed swallow ranges from 32.3kmh (20,1mph) to 38.8kmh (24mph).

#science #sciencefacts #swallow #africanswallow #europeanswallow #airspeed #velocity #itsnotamatterofwhereitgripsit #itsasimplematterofweightratio

sidenote : the four capitals of Assyria were Ashur (or Qalat Sherqat), Calah (or Nimrud), the short-lived Dur Sharrukin (or Khorsabad), and Nineveh - of which the ruins of all four ancient cities fall within the modern state of Iraq.