Editing Shadow (section)

{{Short description|Area where light is blocked by an object}}
{{Other uses}}{{More references|date=March 2025}}[[File:The shadow of a musician playing transverse flute.jpg|thumb|The shadow of a musician cast onto a brick wall]]
[[File: Park grid.JPG|thumb|Park fence shadow is distorted by an uneven snow surface.]]
[[File:Cumulus cloud shadows 1.jpg|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 (shadow)|shade]] occupies the three-dimensional volume behind an object with light in front of it. The [[cross section (geometry)|cross-section]] of a shadow is a two-[[dimension]]al [[silhouette]], or a reverse [[Projection (linear algebra)|projection]] of the object blocking the light.