Ethnicity: Irish (paternal grandmother), English, some German, distant Welsh. Gregory Peck was an American actor. His paternal grandmother was Irish. His other ancestry is English, some German, and distant Welsh.atherine Ashe was born in County Kerry, Ireland. Gregoryâs maternal grandparents were John Daggett Ayers II (the son of William Henry Ayers and Elizabeth Maria Daggett) and Kathryn Elizabeth Forse/Force (the daughter of Albert Thomas Forse and Catherine Woodruff).
The length of a fluorescent light bulb is measured from the back of the socket on one end of the bulb to the back of the socket on the other end. The bulbs are labeled according to the diameter and the length. Linear tubes range in length from 6 to 96 inches and fit into slightly longer fixtures.
The diameter for light bulb shape is measured at the point of maximum size. Examples are: T12 is 12 eights of on inch or 12/8 = 1.5 inches in diameter, PAR20 is 20 eighths of an inch in diameter or 2.5 inches, MR16 is 16 eighths = 16/8 = two inches in diameter.hese are just a few of the ways of measuring light bulbs and the light they produce. The physical dimensions of an LED light bulb include: These are the discussed in more detail in the specific subjects in EagleLight's LED University.