Elementary charge is . Robert A. Millikan's oil drop experiment first measured the magnitude of the elementary charge in 1909. In some natural unit systems, such as the system of atomic units, "e" functions as the unit of electric charge, that is "e" is equal to 1 e in those unit systems. The use of elementary charge as a unit was promoted by George Johnstone Stoney in 1874 for the first system of natural units, called Stoney units. Later, he proposed the name "electron" for this unit. At the time, the particle we now call the electron was not yet discovered and
Kennedy (given name) popular. In 1990, the United States Census Bureau undertook a study of the 1990 United States Census, and released a sample of data concerning the most popular names. According to this sample of 6.3 million people (who had 5,494 unique first names), "Kennedy" did not even appear among the 4,275 feminine names, or the 1,219 masculine names. 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