Also known as shade
thumb|The shadow of a musician cast onto a brick wall thumb|Park fence shadow is distorted by an uneven snow surface. thumb|Shadows from cumulus clouds thick enough to block sunlight A shadow is a dark area on a surface where light from a light source is blocked by an object. In contrast, shade occupies the three-dimensional volume behind an object with light in front of it. The cross-section of a shadow is a two-dimensional silhouette, or a reverse projection of the object blocking the light.
A shadow is a dark area that forms on a surface when an object blocks light from a light source. Shadows matter because they are a visible consequence of how light interacts with objects, and understanding them helps explain everyday optical phenomena we observe around us.
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Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).