art marble

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artificial sky

A dome (usually hemispherical) illuminated by concealed light sources; used to illustrate and study daylighting techniques on architectural models placed near the center of the hemisphere.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in periodicals archive ?
KARACHI -- Sindh Government has established Sindh Stone Development Company which would develop a State of the Art Marble City Industrial Enclave on 300 Acres to promote the marble and granite sector in the province.
That variety is starkest when comparing the collections of small machine- or handmade, playable marbles and the larger decorative glass art marbles of the contemporary movement.