of this secondary radiation. In order to study the directionality of this effect, Cerenkov designed the experimental setup illustrated in Figure 2 using a conical mirror that reflected incoming radiation against a photographic plate located above a fluid-filled vessel. Photographs of the reflected light represent cases of ordinary luminescence
A sigil (/ËsÉªdÊÉl/; pl. sigilla or sigils; from Latin sigillum seal) is a symbol used in magic. The term has usually referred to a type of pictorial signature of a demon or other entity; in modern usage, especially in the context of chaos magic, it refers to a symbolic representation of the magician's desired outcome.
cyst - a closed sac that develops abnormally in some body structure. dermoid cyst - a cystic tumor (usually benign) with a wall lined with epithelium and a cavity containing other material. galactocele - a cystic tumor containing milk or a milky substance (especially in the mammary glands) blood cyst, hematocyst, hemorrhagic cyst - a cyst containing blood. hydatid - cyst filled with liquid; forms as a result of infestation by tapeworm larvae (as in echinococcosis)