Skip to main content

MOTHER EARTH

 

       In this essay, let us take some time to wonder about our own planet.
     As for as we know, this is the only and lonely planet which sustains life.  When it is looked from the moon, it appeared like beautiful blue marble.  It has little habitable land and more ocean waters.  It shelters wide spectrum of plant and animal life.  It is not like a moon which is a boring and barren land.  It has oceans, dessert, rivers, waterfalls, valleys, farms, vineyards, mountains, forests, lakes and so on.

     The earth yields flowers of many colours, designs, and smell.  We can grow sugar cane and hot hot chilli side by side.  It is wonder that the same earth yield so much variety, spice, colours, and tastes.

     All the 100 plus  elements in the periodic table can be mined out of earth's surface.  It yields so much iron and hydrogen but little gold and uranium.

     Man has discovered, invented and designed variety of buildings, wonders like taj mahal, effile tower, gadgets like TV, computer and mobile; wonder medicines; transports from a bike to a rocket, dresses, utensils so on and on.  All the required raw materials are mined from the crust of the earth.  What to wonder?  Man's ingenuity or earth's resources.

     Take any tree.  Its fruits are our food.  Its flowers elevate our mood.  Its leaves gives us the shelter.  Its trunk becomes wood.  We can make chairs,beds or even house out of it. Yet, it will again reproduce itself from the earth.

     We born from the earth.  We grow as intelligent life by consuming earth's resources air, water, vegetation.  Then we wonder about the earth and add our discovered idea and thoughts to the body of knowledge that already exists.

     Computer is made up of silicon chips.  Silicon is the chemical name of pure sand.  So the earth's crust is directly responsible for the today's information revolution.

     Take any house.  It has got bricks, marbles, glass, wood, plastics, cement , steel , sand etc,.  All are resourced and out sourced from mother earth.  Our labour is less in the raw materials.  But earth contribution is more in them.  So we salute and bow to the mother earth.   

   The kings and the common man wants to own land.  But, finally the land won us.

Comments

Popular posts from this blog

LISSAJOUS FIGURES

  Definition:  "When a particle is subjected to two sine wave motion or two oscillatory motion at right angles, the particle describes lissajous figures".      We know sine wave motion and circular motion is basically same.  Hence we draw two circles A and B perpendicular to each other.  The circle B rotates twice faster than circle A.  That is, frequency of circle B is two times than that of A.        A particle at the intersection of two circles is subjected to two sine wave motion   A and B at 90 degree simultaneously.  The particle will describe figures depending on the frequency and phase of A and B .  In our case, the ratio of frequency is  1:2 and the two waves are in phase.        To draw lissajous figures :  A moving point in both the circles are chosen.   Here we should remember; during the time taken by the circle A to complete one rotation, circle B completes two.  Hence the points are marked on the circles according to their speed.  Then straight lines

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

CASINO'S GAME

           Let us find out how the casino survives with mathematics.      Say, your friend invite you for a game of dice.  You must bet (wager) 2 dollars.  If you roll 'six' you will get back 8 dollars.  The game will go on for 30 rounds.  All sounds good.      The probability of rolling 'six' is 1/6.  Since the game will be played for 30 times, the 'expected win' is 30*1/6 = 5.  That is, you are expected to win 5 rounds out of 30.  Hence your gain will be 5 * 8 =40 dollars.  ok.  This also implies that you will loose 25 rounds.  Hence your loss will be 25*2 =50 dollars.  Your net gain will be gain-less = 40-50 = -10 dollars. For 30 rounds, the loss is -10 dollars, Hence, for one round =-10/30 = -1/3 dollars.  There will be a loss of -1/3 or 0.33 dollars per round.  It is not a fair game.     Let us make a simple formula to calculate  'Pay out per round\. The probability for a win = p The pay-out in case of win = V No. of rounds = n The expect