SCIENCE LOVES SYMMETRY

Butterfly is beautiful because of it's symmetrical shape. Almost all natural objects have symmetrical shape. Humans , animals, plants, moon, mountain, seashells, snowflakes, egg, DNA etc,.

There are many examples in mathematics.

*Shapes like parabola, cone, square, circle, etc,.
*Every operation has a reverse operation.
+ to -
x to /
a=b^c to c= log a to base b
*Even the mathematical objects called fractals which are arising out of chaos exhibits symmetry.
Symmetry is abundant in physics.

*To every action there is and equal and opposite reaction.
*Heat can be converted into work and vice versa.
*Energy to mass; mass to energy. Both conversion possible.
*If magnetic dipole has north and south pole, electric dipole must have positive and negative poles.
*If changing magnetic field creates electric field then changing electric field must create magnetic field.
*In a motor, we send current and produce rotations. In a generator, we make rotations and produce currents.
*Antenna can send radio waves and as well as receive radio waves.
*If light waves behaves like particles called photons, the particles like electron should behave like waves.
*For a particle there is a anti particle. Examples: Electron x proton; proton x anti-proton. They have opposite changes.
*Particle and antiparticle can annihilate each other and create waves. From the waves, we can extract back the pair of particles.
*Can we think of a car, bike, or a plane without symmetry?
So it goes on.

so using symmetry, one can understand the science phenomenon, design a new device or invent a new principle. Also symmetry adds a beauty to an object or a principle. The particle Higg's boson was discovered using symmetry principle.

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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

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

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

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