The size of the stone blocks used and how tall the pyramid is
Peoples' cultural, economic
and political values during the Cold War helped create a bipolar view of the
world. People identifying themselves pro and anti communism has divided the world into two sides. Two power blocs--the Soviet Union or the Eastern Block and the United
States or the Western Bloc left the rest
of the world to choose camps to achieve global order..
During the First World War the North American Navy was very small compared to the armies mobilized by the European armies. With the declaration of war of the USA to Germany in April of 1917, the Congress approved an Act creating the Selective Service System. This law gave the president - W. Wilson at that time - the power of conscription, calling men for military service. The system consisted of a classification of five levels and expanded the previously allowed ages. By the end of the recluting days, it had achieved more than two million volunteers. This conscription campaign was very successful because it was accompanied by a strong publicity that encouraged men to a patriotic attitude, which guaranteed a high success rate. This recruitment system was left without effect in 1920.
They reduce the time (by making it faster) and reduce the cost of trading (by making it efficient).