Thesaurus Term/Concept: SUNSHINE RECORDER

Identifier 93465
Class MONUMENT TYPE
Status Preferred
Index? Yes
Scope Note A glass sphere in a metal frame standing on a small pillar. A card is placed behind the sphere which focuses any sunlight, marking the card and thus indicating how many hours of sunlight there was on that day.

Broader Terms/Concepts (2)

Related Terms/Concepts (1)

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