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- (width).
Moon and Spencer specify the luminance of a test object enough lower than that of
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- 1950-1954
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- from the Moon and Spencer formula have been compared with other determinations of the
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- 1950-1954
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- result given in equation (15).
Where the Moon and Spencer formula is assumed, the
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- . 39, pp. 112-123; February, 1949.
(4) P. Moon, The Scientific Basis of Illuminating
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- 1950-1954
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- , p. 457; Elements der Psychophysik, 1860 (Leipzig).
(6) P. Moon and D. E. Spencer, "The
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- Engineering Society, New York (1947), Tables 6-2 and 6-3.
5. Parry Moon, "Proposed Standard
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- 1950-1954
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- some of this work has recently been presented by Moon and Spencer.6
This paper considers
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- following the WeberFechner law or the Moon and Spencer formula) with the vertical axis at
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- 1950-1954
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- Weber-Fechner law the Moon and Spencer formula may be used, with the reservations which
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- . John W. Draper took the first successful photograph of a celestial object — the moon. At