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
Aya (given name) Aya (given name) Aya is a feminine given name with multiple meanings in different languages. In Old German, Aya means "sword". Aya (あや, アヤ) is a common female Japanese given name meaning "design", "colorful" or "beautiful". Aya is also in use in the Hebrew language and means "to fly swiftly" or "bird". Aya is also an Arabic feminine name written as آية meaning "wonderful", "amazing", "miracle" or "verse" (of the Quran). In Mongolian, similar to Turkish, it means goodness, music and "melody". In Chemehuevi, Aya means "tortoise". In Baoule on the Ivory Coast, Aya is given to the female born