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Uses of Optical illusion |
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| Optical illusions are used in many ways, the
following are some of major eras uses: in art,
maths, entertainment, jobs and technology
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ART Optical Art is
generally characterized by hard-edged black
and white patterns or geometric shapes which
use repetition of simple forms and colours
to create vibrating effects, patterns, an
exaggerated sense of depth,
foreground-background confusion, impressions
of movement, flashing and vibration, or
alternatively of swelling or warping. The
art has been here from as far back as
antiquity and always was changing for the
amount of designs and types these are some
artists whom are very well known, they are:
M.C. Escher,
Salvador Dali (picture on the right),
Vonal Ksz and Victor Vassarelly
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By Salvador Dali |
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By
M.C. Escher |
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By Victor Vassarelly |
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By Vonal Ksz |
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Salvador Dali was a Spanish Surrealist
painter famous for his dreamlike imagery. As
an art student in Madrid and Barcelona, Dali
used many artistic styles. In the 1920s,
however, two things happened that affected
his art. He read the Sigmund Freud’s
writings on subconscious imagery, like
dreams, and he joined a group of Paris
Surrealists. Shortly after that, he began to
experiment experiencing himself hypnotic
states and used his experiences in his work.
He would create a dream world where common
objects were altered in a bizarre way.
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Entertainment and Technology
Optical
illusions are well
known in the entertainment industry in fact
most known entertainments for the average
person include movie, video games and
generally TV itself is just an illusion.
Another example is magicians for they pretty
much always complete optical illusions or
tricks to stun and dazzle the audience. (An
example of a magic trick is the house of
mirrors.Optical microscopes
use visible
light to create a magnified image of an
object. The simplest optical microscope is
the double-convex
lens with a short focal
length. Double-convex lenses can magnify an
object up to 15 times.
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Magician use optical tricks |
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JOBS
Using optical illusions can be entertaining,
but some jobs depend on them, and can be
very useful. Pilots need to be skilled in
flying airplanes so they practice in flight
simulators run by computers to make
situations appear that aren’t really there,
similar to virtual reality.
Because wearing clothing with vertical
stripes make people look skinnier and
wearing clothing with horizontal stripes
make people look heavier, fashion designers
have used illusions when designing clothes.
They have also learned that colour can have
a visual effect. For example, wearing black
causes people to look skinnier.
Architects and interior designers can now
use computer programs to make their designs
look three dimensional. This helps the home
buyer better see what the product will look
like.
Finally, landscape architects use illusions
to make gardens look bigger. If they create
a path that gets smaller as it goes away, it
will actually make the garden look bigger
when it is really small.
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Runway Appears
Longer |
Designer |
Path slowly
becoming smaller |
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MATHS :Tessellation
A tessellation is a combination of shapes that cover a
surface with no gaps or overlaps when repeated. The word
"tessellation" comes from the Latin word "tessella"
which means small square tile.
Even though tessellations have been traced back
to ancient cultures and can be found in the
nature they have a short history in mathematical
study. The first study of tessellations was
conducted by Johannes Kepler in 1619. He wrote
about regular tessellations which cover a plane
with polygons. However, it was over 200 years
before anything else was done.
In 1891, E.S. Fedorov, a Russian crystallographer, proved
that every tiling of a plane has certain mathematical
aspects. His study marked the beginning of mathematical
study of tessellations. Since then, various analyses of
tilings have extended into non- Euclidean geometry.
Important mathematicians in this area are Shubnickov and
Belov and Heesch and Kienzle.
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| Regular Tessellation |
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Semi Regular Tessellation |
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Irregular Tessellation |
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