Radiologists graduate from accredited medical schools, pass a licensing examination, and then go on to complete a residency of at least four years of unique post-graduate medical education in, among other topics: 1  Radiation safety and protection. 2  Radiation effects on the human body.
Handfasting is an ancient Irish wedding tradition. Handfasting is an ancient Celtic custom, especially common in Ireland and Scotland, in which a man and woman came together at the start of their marriage relationship. 1 Origin of the term.
Colour fastness is a term used in the dyeing of textile materials, meaning resistance of the material's colour to fading or running. The term is usually used in the context of clothes. The first known use of the word colorfast was in 1916.olour fastness is a term used in the dyeing of textile materials, meaning resistance of the material's colour to fading or running. The term is usually used in the context of clothes. The first known use of the word colorfast was in 1916.