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.
John F Kennedy (known as JFK) was the 35th president of the United States, an immensely popular leader who was assassinated before he completed his third year in office.Photo: Official Portrait of John F Kennedy (Getty Images).ohn F Kennedy (known as JFK) was the 35th president of the United States, an immensely popular leader who was assassinated before he completed his third year in office. Photo: Official Portrait of John F Kennedy (Getty Images).