Ho Chi Minh City College Of Technology Wikipedia
On November 20, 1917, four hundred Mark IVs advanced across the torn-up no-man’s-land at Cambrai. They smashed through barbed wire, and proceeded to seize six and a half miles of a double line of German trenches within twelve hours, with only 4 thousand casualties. German General Paul von Hindenburg lamented that the battle at Cambrai taught the Germans the potential advantages of tanks in trendy warfare. That the tanks may smash over barricades and undamaged trenches shocked the Germans. Leonardo describes hydraulic wheels on many pages of his notebooks and drawings, both …





