Skip to main content

REDUNDANCY

 

     Look at the mirror.  If you do not like what you see, break it (take it lightly).  Again, in  each piece, your face appears.  Again break them all.  In all the pieces, your face appears and smile at you.  This is the way nature works.
  
     Look at a tree.  Every branch is the replica of the tree.  And every sub-branch also.  You can see the pattern of tree in each leaf.  There is redundant information.  Nature uses redundancy to protect life forms.  DNA is present in each cell of life forms.  That is why, plants,can be grown not only from seeds but also from stems, roots and even leaves.

      Hologram that is found in all the Id cards, credit cards etc. yields 3D picture.  "Optical interference pattern" is recorded in the hologram.  If you cut the hologram into pieces, one can get same 3D picture from each piece but smaller ones.  It is now suspected that our brain also stores information in the holographic way.

     Now have a look at the famous fractals like Julia set and Mandelbrot set.  Zoom into the fractals; you will see same pattern repeated again and again like a tree.  The mountains, clouds, rivers are also self-similar fractals.

     Man has also emulated Redundancy.  The internet is open 24*7.  Because all the computers, smart phones and other devices  are connected to this network.  Even if half of the devices in the world is switched off, the internet will still function.  Similarly, all the power generating stations in a region or a country are connected to a network called grid.  Everyone draws electrical power from the grid.  If some power stations fail, we will still get electricity from the grid.  Here, Redundancy is at work.  If rivers are connected as network, we may get continuous water supply.  

     In DVD, redundant and error correcting information is stored.  So even a big scratch will not disturb the information in it.  Redundant info. is sent by space probes to the earth.  If the info. is corrupted during the travel, it can be restored.  
                                 ---------------------------

Comments

Post a Comment

Popular posts from this blog

THE EARTH, A SUPER ORGANISM

     JOIN MY COURSE: "Become a programmer in a day with python"       A man called 'love lock' (what a name) proposed a theory called Gaia theory, named after Greek Goddess.      It says, "Earth is a self-regulating organism like a human being.  The organic life in it interacts with in-organic matter and maintains atmosphere, temperature and environment".  Hence the earth is still suitable for the life to thrive.      Imagine, in a particular place, there are lot of flowers.  Some flowers are white and some are darkly coloured.  We know, white reflects light and heat while dark absorbs the same.  White flowers can thrive in hot climate.  But dark flowers requires cold climate.  The absorption and reflection balances and the environment reaches average, warm temperature at which both the flowers can co-exist.  This is the essence of "Gaia" theory.      On our earth, the oxygen constitute 20% of the atmosphere.  The oxygen level is always mai
3 comments
Read more

THE PARABOLA

          A jet of water shooting from a hose pipe will follow a parabolic path.  What is the so special about parabola.    Y= x^2 Draw a graph for the above equation.  It will result in a parabola.  This parabola is also called unit parabola.  Any equation involving square will yield a parabola. Example:  Y = 2x^2 +3x+3 (also called quadratic equation)    X= 2 and -2, both  satisfies the equation 4 = X^2.  Parabolic equations always have two solutions.     Any motion taking place freely under gravity follows parabolic path. Examples:   An object dropped from a moving train,   A bomb dropped from flying plane,  A ball kicked upwards.      If a beam of light rays fall on the parabolic shaped mirror, they will be reflected and brought to focus on a point.  This fact is made use of in Dish Antenna, Telescope mirrors, etc.      Inverted parabola shape is used in the construction of buildings and bridges.  Because the shape is able to bear more weight.      A plane
Post a Comment
Read more

DISORDER IS THE "ORDER OF THE DAY"

         Imagine a balloon full of air.  The air molecules are moving randomly inside the balloon.  Let us pierce the balloon with a pin.  The air rushes out.  Why should not the air molecules stay inside the balloon safely and ignore the little hole?  That is not the way the world works.  The molecules always "want to occupy as many states as possible".  Hence the air goes out in the open to occupy more volume.   The things always goes into disorder (entropy) and the disorder increases with time.  The above statement is what we call "second law of thermodynamics".      Consider a cup of coffee on the table. Suppose the heat from entire room flows to your cup of coffee, the coffee will boil and the rest of the room will freeze.  Freezing means bringing things to order and arrangement.  It violates the second law.  Hence it will never happen.  Hence heat must flow from high temperature to low temperature and not the other way.        The air molecules in y
Post a Comment
Read more