Illusion
of the Month #17: Sept-Oct 2011 Back | Home
In
this page you can test your visual ability with interactive
optical illusion challenges. Each month, we
will post new puzzling illusions to solve and/or to
comtemplate: ambiguous and completion figures, impossible
figures, hidden objects, illusions involving colors,
geometric illusions, illusory moving patterns, verbal
illusions and paradoxes.
All
these illusions were adapted/designed by the authors
with the aim of allowing the visitor/reader to:
• discover how we
perceive things,
• test and enhance
the power of observation and critical thinking skills,
• improve mental flexibility,
• have fun being deceived
by puzzling visual challenges.
You can use the SVI
feature below in your non-commercial webpage
for free as long as you leave the copyright and
author's info intact and link to
us.
Have
a look at the colored surfaces of the R's...
Two of them are congruent, that is they
coincide exactly when superimposed. Which ones?
Incredibly,
the green R-shaped surface and the red R-shaped
surface coincide exactly when superimposed! (see
image opposite).
The
edges, the orientation and the perspective of
the letters provide visual cues that strongly
influence our interpretation of the three-dimensional
shapes.
You're
encouraged to expand and/or improve this article.
Send your comments, feedback or suggestions to Gianni
A. Sarcone. Thanks!
Sarcone's
Visual Illusion features are syndicated
and distributed by Knight
Features. If you are interested in having SVI features
published in your newspaper or review, please contact:
Tel: +44 (0) 207 622 1467 Knight
Features
20 Crescent Grove
London, SW4 7AH
UK
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Illusion Gift Shop Buy
your favorite illusion design, created by illusionist artist and
visual researcher G.
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