When Bilhah conceives two sons, Leah takes up the same idea and presents Zilpah to wife to Jacob. Leah names the two sons of Zilpah and is directly involved in their upbringing.Pirke De-Rabbi Eliezer, xxxvi.). Zilpah also figures in the competition between Jacob's wives to bear him sons. Leah stops conceiving after the birth of her fourth son, at which point Rachel, who had not yet borne children, offers her handmaid, Bilhah, to wife to Jacob so that she can have children through her.
What is a Confocal Microscope? A confocal microscope performs the same function as any other microscope. Itâs used to view any objects or structures that are too small for the naked eye to see. Unlike the traditional light microscope, however, a confocal microscope slices thin, clean optical sections of a given specimen using either fluorescence or reflection.
Instructions for use of the high power microscope: 1  Carry the microscope with one hand grasping the neck and the other supporting the bottom. 2  Always have the shortest, low power objective lens facing the stage when you put a new slide on the stage or remove a slide. Be sure that the low power objective is in position before you remove a slide from the stage and before you put the microscope away. 2  When you unplug the microscope, grasp the plug, not the cord. 3  Microscopes are numbered and should be put away in the niche bearing the same number in the microscope cupboard.