Vesper No. 8 | Vesper | Spring-Summer 2023
Francesca Cremasco
Visibility
Keywords
Light, shadow, transparency,
opacity, twilight vision
Visibility implies the ability to see of the subject who observes, as
well as the ability to be seen. Visibility, strictly determined by light,
involves four aspects: of geometry/space, of matter/surface and the conditions,
of field and subject. The first aspects have physical-objective characteristics
with a certain intrinsic stability, while the latter represent more unstable
conditions, with phenomenological and physiological nature. In architecture,
the primordial binomial referring to visual perception is the couple
transparency/opacity, which can be correlated to the binomials void/solid and
light/shadow. Transparency, among all the optical characteristics of the
material, has contributed to the perceptual turning point of an architecture
that overturns relationships and meanings flowing from day to night, a passage
marked by twilight vision. It is in the heure
bleue that our most stimulated cognitive apparatus is amplified, revealing
a short circuit of meanings.
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