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bn:14527088n
Noun Concept
Categories: Shadows, All articles needing additional references, Optical phenomena
EN
umbra  umbra, penumbra and antumbra  penumbra
EN
The umbra, penumbra and antumbra are three distinct parts of a shadow, created by any light source after impinging on an opaque object. Wikipedia
Definitions
Relations
Sources
EN
The umbra, penumbra and antumbra are three distinct parts of a shadow, created by any light source after impinging on an opaque object. Wikipedia
Distinct parts of a shadow Wikidata
Outer and lighter part of the shadow created by an eclipse. OmegaWiki
The fully shaded inner region of a shadow cast by an opaque object. Wiktionary
IS A
group
HAS PART
antumbra
penumbra
umbra
PART OF
shadow
umbra
DESCRIBED BY SOURCE
Otto's encyclopedia
DIFFERENT FROM
antumbra
penumbra
DOES NOT HAVE QUALITY
light
LESS THAN
antumbra
penumbra
Wikipedia
EN
umbra, penumbra and antumbra
Wikidata
EN
umbra, umbra, penumbra and antumbra
Wiktionary
EN
umbra
OmegaWiki
EN
penumbra
Wikipedia Redirections
EN
antumbra, penumbral, penumbras, Soft shadow, soft shadows, Umbra and Penumbra

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