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Collected papers on acoustics (1922)

Sabine, Wallace Clement · Cambridge, Harvard University Press; [etc., etc.] · leaf 182

An illustration from Collected papers on acoustics, 1922, leaf 182
PLAN Figs. 3 and 4. Section and plan of the Kuppel-Horizontwith Fortuny system of lighting. cipal action occurs. Cloud effects, either stationary or moving, areprojected on the surface of the cupola by a stereopticon. The greatadvantage claimed for this form of stage setting is the more…

Architectural acoustics

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