This entry needs pronunciation information. If you are familiar with the IPA or enPR then please add some! Particularly: “As acronym (like affair) or as initialism? More likely never spoken aloud, just read as separate words.”
1996 July 24, LBsys, “John Baez' gravitational rainbow”, in sci.physics[1] (Usenet):
In the same thread (and others as well) it was stated and AFAIR never withspoken, that light 'climbing out a gravity well' redshifts, thus looses energy, but not speed (and vice versa falling in).
