current tends to travel along the outer surfaces of a conductor in a process known as skin effects. in large electric substations the high voltage buss work is sometimes hollow tubular bars so designed for that reason. electric transmission lines are made up of stranded aluminium conductors wrapped around a steel core. steel core for strength and wrapped stranded conductors for ampacity. large solid conductors imparts more resistance in the circuit, this combined with skin effects tends to restrict current flow. stranded conductors typically will have a higher ampacity due to their smaller individual size having less resistance and also each strand will have its own skin effect. there is some thoughts that stranded conductors have less heat dissipation which will serve to reduce current flow. now is it atom to atom or does each atom just bump into each successive atom to make current flow?
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Today's Featured Article - Museum Coverage: The Stuttgart Agricultural Museum - by Cindy Ladage. While cold wind was blowing back in Illinois, in Arkansas, daffodils were in bloom, and the Magnolia trees were adorned with fragrant blossoms. Stuttgart, Arkansas was the site of this year's winter Minneapolis Moline Collector's show February 25-27, 1999. The show was held at the Oliver Museum created by Don Oliver, the pioneer of the four wheel drive tractor. Oliver along with Gale Stroh and Kenneth Bull using Minneapolis Moline tractors and parts created what has become known as
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