הנה תרגום
A shade is an area is limited, by the side of an light-absorbing article turned away from a source of light and the undamped light produced by the same source of light (e.g. Nachtseite of the earth) the projection picture on a further article, produced by the source of light and the article, (e.g. Shade theatre) It is thus usually a darker surface (or a shadow region - „area without light “), which is caused by an article present before a source of light. The range formed by the shadow region contains a two-dimensional projection of the object in levels put by it - distortion and size depend on the angle of the surface and on the distance of the source of light. One differentiates several kinds depending upon number and expansion of the source of light

from shade. The separation LINE between lit and unlighted area or a surface is the separator, the light border or shade border, in astronomy and meteorology also terminator (day night border).