of the Month #18: Dec 2011 · Jan 2012 Back | Home
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.
these illusions were adapted/designed by the authors
with the aim of allowing the visitor/reader to:
• discover how we
• 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
at the three spiral labyrinths A, B, and C (see fig. above).
Though they might appear the same, they present some fundamental
differences. Which ant scuttling through its respective maze
will finally reach the sugar cubes?
find the answer, think of these decorative spiral
designs as if they were rolled pastries. If we
fill with red the paths that are actually only
closed spaces, we can easily see that the labyrinth C shows
a continuous double-spiral path that leads to the
sugar cubes (Fig. B). If we test the other paths
in A and B,
we will soon discover that they are dead-ended
(see the blue paths). The interlaced spirals in
C are made with two rolled-up onefolded green layers,
while the labyrinthine spirals in B and A are
made with just one rolled-up green layer, folded
respectively once (B)
or twice (A).
encouraged to expand and/or improve this article.
Send your comments, feedback or suggestions to Gianni
A. Sarcone. Thanks!
Optical Illusions by G. Sarcone & M.-J.
In this just-released book we reveal our secrets
on how to design and CREATE perfect and impressive
Tunnel Watch by G. Sarcone
The color fields of the magnetic rosette printed
on the dial seem to vibrate and to move forwards
like you were in a warp tunnel!
Univers des Illusions d'Optique by G. Sarcone & M.-J.
La réalité est visiblement incroyable
! Plongez dans un monde fascinant où tout
n'est qu'illusion !
Les images clignotent, se déforment, tournent.
Attrapez le vertige en restant immobile ! Un
sujet qui fascine tous les publics, de 7 à 77
ans. Une mise en scène extraordinaire
et des images à couper le souffle !