Point particle of point charges cannot be maintained in an equilibrium configuration solely by the electrostatic interaction of the charges. In quantum mechanics, there is a distinction between an elementary particle (also called "point particle") and a composite particle. An elementary particle, such as an electron, quark, or photon, is a particle with no internal structure. Whereas a composite particle, such as a proton or neutron, has an internal structure (see figure). However, neither elementary nor composite particles are spatially localized, because of the Heisenberg uncertainty principle. The particle wavepacket always occupies a nonzero volume. For example, see atomic orbital: The electron
Marilyn (given name) Marilyn (given name) Marilyn is a feminine given name. Marilyn is a blend of the English given names Mary and Lynn. It began to be used in the 1920s, and it reached its peak of popularity in the 1930s, 1940s and 1950s. Variants of the name includes: Maralyn, Marilynn, Marlyn, Marylyn, Marrilyn, Merilyn, Merrelyn and Merrilyn. The American musician and artist Brian Hugh Warner goes by the stage name Marilyn Manson. His stage name was formed by juxtaposing the names of two opposing American pop cultural icons, actress Marilyn Monroe and cult leader Charles Manson; as an actual given name,