All radiation is a form of energy, most of which is invisible to the human eye. UV radiation is only one form of radiation and it is measured on a scientific scale called the electromagnetic (EM) spectrum. UV radiation is only one type of EM energy you may be familiar with.
Marsala is a wine, dry or sweet, produced in the region surrounding the Italian city of Marsala in Sicily. Marsala first received Denominazione di Origine Controllata (DOC) status in 1969.
New wife, Marsala wines, in general are much like a good sherry. Loaded with alcohol (they are fortified wines) they ofter add a bit of sweetness to dishes that use them in the recipe, once you have burned off all that alcohol. Another good option, thought not to style would be to use a Pinot Noir from California.