Exotic atom to weak, electromagnetic and gravitational forces, muonic atoms are governed to very high precision by the electromagnetic interaction. Since a muon is more massive than an electron, the Bohr orbits are closer to the nucleus in a muonic atom than in an ordinary atom, and corrections due to quantum electrodynamics are more important. Study of muonic atoms' energy levels as well as transition rates from excited states to the ground state therefore provide experimental tests of quantum electrodynamics. Muon-catalyzed fusion is a technical application of muonic atoms. A "hadronic atom" is an atom in which one or more of the
Empire of the Atom bodily" from the plot of "I, Claudius". A genealogy chart of the ruling family of the Empire of Linn is included. Van Vogt based "Empire of the Atom" largely on the plot of "I, Claudius" by Robert Graves, putting it into a science-fictional setting. The work was originally presented as five novelettes published in "Astounding Science Fiction" between May 1946 and December 1947. Some time, a little over 10,000 years from now, a noblewoman gives birth to a deformed child, a consequence of having been accidentally exposed to radiation from one of the temples of the Atom Gods. The baby