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.
Fluorescent lamps are highly efficient, using electric discharge through low-pressure mercury vapour to produce ultraviolet (UV) energy. Identification: Fluorescent lamps generally range in diameter from 2.54 to 3.81 centimetres (1 to 1.5 inches); and in length rom 0.61 to 2.44 meters (2 feet to 8 feet).