Wave–particle duality operation of chemical reactions. Electricity, first thought to be a fluid, was now understood to consist of particles called electrons. This was first demonstrated by J. J. Thomson in 1897 when, using a cathode ray tube, he found that an electrical charge would travel across a vacuum. Since the vacuum offered no medium for an electric fluid to travel, this discovery could only be explained via a particle carrying a negative charge and moving through the vacuum. This electron flew in the face of classical electrodynamics, which had successfully treated electricity as a fluid for many years (leading to the
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