Due to how cells divide in organisms, asymmetry in organisms is fairly usual in at least one dimension, with biological symmetry also being common in at least one dimension. Louis Pasteur proposed that biological molecules are asymmetric because the cosmic [i.e.ymmetry is one of the most powerful tools in particle physics, because it has become evident that practically all laws of nature originate in symmetries. Violations of symmetry therefore present theoretical and experimental puzzles that lead to a deeper understanding of nature.
Character(s): Lt. Kevin T. Riley. Richard Bruce Hyde (14 September 1941 â 13 October 2015; age 74) was the actor who played Lieutenant Kevin T. Riley in the Star Trek: The Original Series episodes The Naked Time and The Conscience of the King.
Robert Horton played Flint McCullough from 1957 - 1962. When he left the program, Scott Miller played scout Duke Shannon from 1961 - 1964 and Robert Fuller played scout Cooper Smith from 1963 - 1965. http://en.wikipedia.org/wiki/Wagon_Train#Cast.