Due to construction and functional characteristics above described, with the internal reflux column it is possible to get selective the separation of components of extremely complex mixtures, with similar chemico-physical characteristics, not economically separable otherwise.
Uniform numbers in American football are unusual compared to those in other sports. They are displayed in more locations on the uniform; they are universally worn on both the front and back of the jersey; and in many cases TV numbers are displayed on either the jersey sleeves, the shoulder pad, or occasionally on the helmets.
Traditionally, a left wing midfielder in football wears number 11. Less commonly, it is worn by strikers. Jonah Lomu wore the number when he played for the All Blacks as he played left wing (see rugby union above).11 is also by quarterbacks, kickers, punter and wide receivers in American football's NFL. The only NFL team that has retired the #11 is the New York Giants, in honor of quarterback Phil Simms.raditionally, a left wing midfielder in football wears number 11. Less commonly, it is worn by strikers. Jonah Lomu wore the number when he played for the All Blacks as he played left wing (see rugby union above).