Fractals : are processes or images that exhibit something
called self-similarity. For example something that is made up a
reduced version of itself.
The picture below shows how the fern is
made up of a range of tiny ferns. Each leaf of the fern is in fact a
smaller version of the entire fern. The whole fern is
simply made up of reduced versions of itself. Every leaf which
branches from the fern is an even smaller one and this form of
self-similarity continues forever. A fractal fern contains many
repeated portions of different sizes.
In nature many objects
exhibit self-similarity for example landscapes. The study of this
phenomena has been around for over 100 years and initially introduced via
journals and mathematical literature. Like so many revolutionary
ideas they were denounced. One famous mathematician called Charles Hermite
even referred to them as 'monsters'.
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| Fractal Fern |
Benoit B. Mandelbrot, who is often called the 'father of fractals',
investigated the relationship between fractals and nature. He showed that
many fractals existed in nature and could accurately model some
phenomenon.
"As he researched, he and his collaborators introduced many new
types of fractals to model more complex things like trees or mountains. He
furthered the idea of fractional dimension and later coined the term
'fractals' from this revolutionary concept".
Some properties of fractals include, self-similarity, or the repetition of
patterns at all scales. Another property that commonly exists in fractals
is infinite complexity and detail.
The complexity and properties of fractals means that they can be used in a
number of real-world applications. Fractals can be used for modeling
things in areas as diverse as: biology, geography, economics and medicine.
In biology both plants and animals exhibit properties of self-similarity
as has already been seen in the case of the fern. In humans branches
of arteries and veins can be modeled using fractals, as well as a number
of other things including: kidney structure, skeletal structure,
heart and brain waves and the nervous system.
In some instances the stock market and economic meters can exhibit
properties of self-similarity and as such fractals can be used here.
Fractals are also used in the world of fine art where they are used to
accurately model music produced by a wide variety of composers. They
can also be used to create beautiful "paintings" of landscapes
and attractive pictures, examples of which can be found bellow.
In the film Apollo 13, a picture of the moon was generated using fractals,
they were particularly useful because no matter how far is zoomed, the
detail of an object can be preserved.
Please see below some examples of fractals. Fractals are both an
unusual and beautiful phenomenon and for more information about this fascinating
topic please visit the links below. Please note that the following
pictures may not be reproduced without prior permission from Fantastic
Fractals Online! and Mind-Boggling
Fractals websites.
Sierpenski's Triangle (Image courtesy of Fantastic
Fractals Online!)
Sierpenski's Gasket (Image courtesy of Fantastic
Fractals Online!)
Koch Curve (Image courtesy of Fantastic
Fractals Online!)
Koch Curve (Image courtesy of Fantastic
Fractals Online!)
Source: Information, extracts and inspiration for this
article courtesy of the Fantastic
Fractals Online! website.
Examples of fractals as an interesting art form all of the images below
are courtesy of Mind-Boggling
Fractals website.
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