Line "Spectra" Radiation of Certain Electrons
I propose that single frequency radiation from some electrons could be the product of evenly spaced receptacles around its equator of rotation that would (1) accumulate quantities of HC up to a permanent limit, and (2) activate to release the contents of all receptacles sequentially at "c" during a single rotation. this illustrates the launch of a single barrage or "photon" in a straight line.
Very large numbers of atoms emitting a given line spectrum would assure that a wide range of directions would be made available for viewing many light years away. From the point of view of a transmitting atom, the above action would serve the purpose of removing surplus heat from that atom. An action that removes heat from an atom of a distant star provides us with knowledge of the presence and nature of the star.