Asymmetry is the absence of, or a violation of, symmetry (the property of an object being invariant to a transformation, such as reflection).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.
John Fitzgerald Jack Kennedy (May 29, 1917 â November 22, 1963), commonly referred to by his initials JFK, was an American politician who served as the 35th President of the United States from January 1961 until his assassination in November 1963.
Joe Kennedy, a hugely successful businessman and an early supporter of Franklin D. Roosevelt, was appointed chairman of the Securities and Exchange Commission in 1934 and in 1937 was named U.S. ambassador to Great Britain.As a student at Harvard University, Jack traveled in Europe as his fatherâs secretary.lected in 1960 as the 35th president of the United States, 43-year-old John F. Kennedy became the youngest man and the first Roman Catholic to hold that office.