The Tank

  This armoured four-wheelled vehicle driven by man or animal power has holes at the base for the firing of cannon and a turret at the top for observation and small arms fire.

Scythe Chariots

  The British art historian Sir Kenneth Clark: "During the Renaissance in Italy, the art of warfare was the most important of all the arts, and it marshalled the services of the most skilled artists."

  Note the depiction of the sliced soldiers.

Giant Ballista and Multi-Barrelled Gun

  In 1483 Leonardo wrote a letter to his new patron Ludovico Sforza of Milan.  In it he lists his skills especially in the field of engineering: "......9.  Where the use of cannon is impossible, I will construct catapults, ballistas, trabocchi and other machines of great effectiveness that are in general little used.  In short, as necessity dictates, I will construct an infinite number of devices for attack and defence."  The picture on the left shows a giant ballista on a chariot with tilted wheels.

  On the right is a multi-barrelled gun.  There are thirty-three light cannon barrels on a prism-shaped drum, so that eleven could be fired simultaneously. The rotation allowed one row to be fired while one was loaded and the other allowed to cool.