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Illusion - Is Seeing Really Believing?
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Illusion - Is Seeing Really Believing (1998)(Marshall Media)[Mac-PC].iso
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00066_Text_res28at.txt
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1997-02-04
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There is an explanation of
BoringΓÇÖs findings about
distance, and perhaps the
readerΓÇÖs own observations, that
still allows us to consider the
apparent-distance theory
seriously. When asked in which
position the moon appears to be
closer, the observer is
comparing moons that already
appear to be different in size.
Because relative size is a cue to
distance and because we tend to
believe that objects appear to
diminish in size as they recede
into distance, the observer may
conclude from the fact that the
moon appears larger on the
horizon that it also appears
closer. This conclusion about
distance is not so much the
result of a genuine perceptual
cue as it is a product of a
thought process or judgment. A
test of the reasoning is to
modify BoringΓÇÖs observation
about the apparent distances to
the moons by eliminating the
moons from view. Observers
were asked which region of the
sky appeared to be farther away.
Virtually all said it was the sky
at the horizon.