Elementary particle quarks—now considered elementary particles. And within a molecule, the electron's three degrees of freedom (charge, spin, orbital) can separate via the wavefunction into three quasiparticles (holon, spinon, orbiton). Yet a free electron—which is not orbiting an atomic nucleus and lacks orbital motion—appears unsplittable and remains regarded as an elementary particle. Around 1980, an elementary particle's status as indeed elementary—an "ultimate constituent" of substance—was mostly discarded for a more practical outlook, embodied in particle physics' Standard Model, what's known as science's most experimentally successful theory. Many elaborations upon and theories beyond the Standard Model, including the popular supersymmetry, double the number
Kennedy (given name) Kennedy (given name) Kennedy is a unisex given name in the English language. The name is an Anglicised form of a masculine given name in the Irish language. According to Patrick Hanks and Flavia Hodges, the given name "Kennedy" is an Anglicised form of "Cinnéidigh", a masculine given name in the Irish language. This Irish name is composed of two elements: the first, "ceann", means "head"; the second, "éidigh", means "ugly". According to Patrick Woulfe, who wrote in the early 19th century, "Kennedy or Kynidi" is an Anglicised form the Irish "Cinnéididh" and "Cinnéidigh". Woulfe derived these Irish names from