Spin (physics) discrete angular momenta despite having no orbital angular momentum. In some ways, spin is like a vector quantity; it has a definite magnitude, and it has a "direction" (but quantization makes this "direction" different from the direction of an ordinary vector). All elementary particles of a given kind have the same magnitude of spin angular momentum, which is indicated by assigning the particle a spin quantum number. The SI unit of spin is the (N·m·s) or (kg·m·s), just as with classical angular momentum. In practice, spin is given as a dimensionless spin quantum number by dividing the spin angular momentum
Might as Well Be Dead before. The son, Paul Herold, had consequently broken almost all ties with the family, changed his name and moved to New York City. Even the latter meagre information was only known because Paul has recently sent his sister a birthday card postmarked NYC. The father has already taken obvious steps such as an ad in the newspaper and consulting the Missing Persons Dept of NYPD. Although the present name of Paul Herold is unknown, Wolfe suspects that he has at least retained the same initials, and therefore places an advertisement in the newspapers the following day advising "PH" that he