My learning by experience

  An Approach to Writing Style   Writing is, for most, laborious and slow. The mind travels faster than the pen; consequently, writing becomes a question of learning to make occasional wing shots, bringing down the bird of thought as it flashes by. A writer is a gunner, sometimes waiting in the blind for something to come in, sometimes roaming the countryside hoping to scare something up. Like other gunners, the writer must cultivate patience, working many covers to bring down one partridge. Here, following, are some suggestions and cautionary hints that may help the beginner find the way to a satisfactory style. 1. Place yourself in the background. Write in a way that draws the reader attention to the sense and substance of the writing, rather than to the mood and temper of the author. If the writing is solid and good, the mood and temper of the writer will eventually be revealed and not at the expense of the work. Therefore, the first piece of advice is this: to achi...

Khamiya chupao Khamiya chupao, apne jhooth na dikhao, Apne sach ko chupao, apne dard na dikhao,  Apni muskurahato se Humko na jalao, Nazar lag jaigi! apni tarakki ko chupao,  Apne se upar Kisi ko na barhne do,  Bhale hi woh Kitna hi haqdar Ho.  Apne Zehar ko na pighlao apne Aap pe itrao,  Jhooth pakarh bhi liya to kya? Gheebat aashgaar Ho bhi gayi to kya?  Apni khoobiyo se saamne wale ko dabrao, Apni strength ko chupao, apni weakness ko na batao,  Jab Koi yeh kare to usko dabao,  Khud se larhne ki koshisho mein Khud ko na harao,  Lava ko pakne do, pakne do use, use Aur pakao, uske phoot ne se Pehle, phoot phoot kr ro ke dikhlao,  Apne aasuo se uski agn ko kam krte jaao. Aaiga woh din jab tum larhna Chorh doge, Kehne wale to kehte hain, yeh sun sun kr tum bhi Ek din kahoge,  Khamiya chupao, apne jhooth na dikhao, Apne sach ko chupao, apne dard na dikhao,  Apni muskurahato se Humko na jalao...

  The 30 Major Causes of Failure   By Napoleon Hill (author of Think and Grow rich) Life’s greatest tragedy consists of men and women who earnestly try, and fail! The tragedy lies in the overwhelmingly large majority of people who fail, as compared to the few who succeed. 1. Unfavourable hereditary background: There is but little, if anything , which can be done for people are born for people who are born with a deficiency in brain power. This is the only one of the thirty causes of failure which may not be easily correlated by any individual. 2. Lack of a well-defined purpose in life: There is no hope of success for the person who does not have a central purpose, or definite goal at which to aim. 3. Lack of ambition to aim above mediocrity : We offer no hope for the person who is so indifferent as not to want to get ahead in life, and who is not willing to pay the price. 4. Insufficient education: This is a handicap which may be overcome with comparative eas...

Tell me the attire to have We were crossing a road, when a group of ladies chuckled us like as we were looking insane. I replied, "Hello, why you are laughing?"  But they passed out with the same mocking faces. We went to the market for the ladies attire to have.  Now I lost my courage to snap it after that.  Tell me the attire to have.  Then I tried to go for the stuffs of man.  Especially in that I opted a kurta pyjama, as my religion attire to have.  Then I purchased a long scarf, Not just to hide my head but to cover my upper back. Many people pretend to be casual and ignore their awkward behaviour to us.  When they have to accept us in the same suff of Jamat of pray. But still We are confused between men and women,  Among them which religion's clothes to accept. We are fighting with the existence of our souls. Asking, Tell me the attire to have. 

He was... He is... He was the enemy when I became Krish. He is a subject of laugh when we need some joy in mist. He was my shit cleaner when I hospitalized and not fit. He was my Kane when I performed Undertaker. He was my Boogie man when I performed Rey Mysterio. He was my Mark Henry when I performed John Cena. Yes! Yes! Yes!  I can beat him with my favourite Daniel Brien. He is a subject of anger when he quarreled with the Mother and she began to cry. He is our complaint box whenever there's a financial loss in the lifestyle. He was the target of my 'charre-wali' gun when he didn't pay for that bubble blower pipe. He was the subject of my shitty talks whenever I disagreed with him, though in my mind.  He made me tensed when he forgets to carry his phone, which I wish I could dialled. I remember the day when he arrived after a week. He was.. he was in turmoil and some kind of weak.  He was quite and went into his bed as everything seemed alright.  As always I was bu...

Graceful exit problem Graceful exit problem: A problem of the original formulation of the inflationary theory, in which the formation of bubbles at the end of inflation destroys the homogeneity of the universe. See decay of the false vacuum, and percolation.

Fractal Fractal: A geometric figure in which a pattern is repeated ad infinitum on smaller and smaller scales. A classic example is Von Koch's snowflake, for which the construction begins with an equilateral triangle. Trisect each side, and replace the middle section by two sides of a smaller equilateral triangle, bulging outward. The snowflake is obtained by repeating this process for each side of the resulting figure, then for each side of the subsequent figure, and continuing forever.

Flatness problem Flatness problem: A problem of the traditional big bang theory (without inflation) related to the precision required for the initial value of omega, the ratio of the actual mass density to the critical mass density. If the description is started at one second after the big bang, for example, omega must have been equal to one to an accuracy of fifteen decimal places, or else the resulting universe would not resemble our own. Yet the traditional big bang theory offers no explanation for this special value, which must be incorporated as an arbitrary postulate about the initial conditions. See also horizon problem.

False vacuum False vacuum: The false vacuum is a peculiar form of matter which is predicted to exist by many (probably most) current theories of elementary particles. Particle physicists describe the false vacuum, like all forms of matter, in terms of fields. Originally the phrase "false vacuum" was used to describe a region in which one or more fields have a set of values that do not minimize the energy density, but which are in a local valley of the energy density diagram. Classically such a state would be absolutely stable, since there would be no energy available for the fields to jump over the hills that surround the valley. By the rules of quantum theory, however, the fields can tunnel through the hill of the energy density diagram and settle eventually in the true vacuum, the state of lowest energy density. The false vacuum is nonetheless metastable, and in fact it can endure for a period which is long by early universe standards. The false vacuum has a negative press...

Extended inflationary universe theory Extended inflationary universe theory: A version of the inflationary universe theory proposed in 1989 by Paul Steinhardt and Daile La. Its key new feature was the suggestion that a new field interacts directly with the gravitational field, causing the strength of gravity to change with time. This causes the expansion of the universe to slow clown, allowing the bubbles forming at the end of inflation to catch up with the expansion and smoothly fill the universe.

Doppler shift   Doppler shift: The shift in the received frequency and wavelength of a sound wave or electromagnetic wave that occurs when either the source or the observer are in motion. Approach causes a shift toward shorter wavelengths and higher frequencies, called a blue-shift. Recession has the opposite effect, called a redshift.

Density perturbations Density perturbations: Non-uniformities in the density of matter in the universe. Such non-uniformities are gravitationally unstable, which means that they are amplified by gravity. Any region with a mass density slightly higher than average produces a stronger-than-average gravitational field, which pulls in more matter and further increases the mass density. Thus, very mild non-uniformities in the early universe can serve as seeds for the formation of galaxies.

Decay of the false vacuum Decay of the false vacuum: Since the universe is not inflating today, the inflationary theory depends on the fact that the false vacuum which drives inflation is metastable, so it will eventually decay. The theory requires that this decay happen after more than 100 doubling times of the exponential expansion, but it still happens when the universe is much less than one second old. If the inflation fields are in a local valley of the energy density diagram, then the decay happens via the formation of bubbles, like the boiling of water, and the randomness of the bubble formation destroys the homogeneity of the universe and causes the theory to fail. This failure is called the graceful exit problem of the original inflationary theory. lf however, the inflation field is at the top of a local plateau, as assumed in the new inflationary universe theory, then inflation continues as the fields roll gently towards a minimum energy value, and a single bubble becomes la...

  Physics Glossary  [D to G]         [A to C] Dark matter : Matter that is detected only by its gravitational pull on visible matter. At least 90%, and possibly 99% of the matter in the universe is dark. The composition is unknown; it might consist of very low mass stars or supermassive black holes, but big-bang nucleosynthesis calculations limit the amount of such baryonic matter to a small fraction of the critical mass density. If the mass density is critical, as predicted by the simplest versions of inflation, then the bulk of the dark matter must be a gas of weakly interacting non-baryonic particles, sometimes called WIMPS (Weakly Interacting Massive Particles). Various extensions of the standard model of particle physics suggest specific candidates for the WIMPs. Decay of the false vacuum : Since the universe is not inflating today, the inflationary theory depends on the fact that the false vacuum which drives inflation is metastable, so it wi...

Dark matter Dark matter: Matter that is detected only by its gravitational pull on visible matter. At least 90%, and possibly 99% of the matter in the universe is dark. The composition is unknown; it might consist of very low mass stars or supermassive black holes, but big-bang nucleosynthesis calculations limit the amount of such baryonic matter to a small fraction of the critical mass density. If the mass density is critical, as predicted by the simplest versions of inflation, then the bulk of the dark matter must be a gas of weakly interacting non-baryonic particles, sometimes called WIMPS (Weakly Interacting Massive Particles). Various extensions of the standard model of particle physics suggest specific candidates for the WIMPs.

Physics Glossary                                        [A to C] Action-at-a-distance: A description of a force, such as Newton's law of gravity, in which two separated bodies are said to directly exert forces on each other. In the modern description, the bodies produce a gravitational field, which in turn exerts forces on the two bodies. See gravitational field. Alpha decay : The disintegration of an atomic nucleus, in which the final products are an alpha particle and a nucleus with two fewer protons and two fewer neutrons than the original. Alpha particle : A particle consisting of two protons and two neutrons bound together. The nucleus of a helium atom is an alpha particle. Antibaryon: The antiparticle of a baryon. Antimatter: Matter that is not composed of protons, neutrons, and electrons, like the matter we see around us, but is instead composed of antip...

Colour Colour: Each flavour of quark can exist in three variations, called colours, usually labelled as red, green, and blue. The colour of a quark has no relation to its visual appearance, but the word colour is used because there are three variations, in analogy with the three primary colours. Measurable properties of the quarks, such as electric charge and mass, depend on the flavour but not the colour, but the colour is responsible for the interactions that bind the quarks together (see Yang-Milis theories). Individual quarks cannot exist independently, but are forever confined within baryons or mesons, each of which is colourless. Baryons achieve colourlessness by being composed of three quarks, one of each colour, while mesons achieve colourlessness by pairing each coloured quark with its corresponding antiquark.

Closed universe Closed universe: A homogeneous, isotropic universe is said to be temporally closed if gravity is strong enough to eventually reverse the expansion, causing the universe to re-collapse. It is said to be spatially closed if gravity is strong enough to curve the space back on itself, forming a finite volume with no boundary. Triangles would contain more than 180 ° , the circumference of a circle would be less than n times the diameter, and a traveller intending to travel in a straight line would eventually find herself back at her starting point. If Einstein's cosmological constant is zero, as is frequently assumed, then a universe which is temporally closed is also spatially closed, and vice versa.

  Chaotic inflationary universe theory Chaotic inflationary universe theory : A version of the inflationary universe theory, proposed by Andrei Linde in 1983, for which the energy density diagram far the fields driving inflation can be as simple as a bowl, with a unique minimum at the centre. If the initial randomly chosen value of the fields corresponds to a point high up the hill on the side of the bowl, then sufficient inflation can occur as the fields roll towards the state of minimum energy density

Blackbody radiation Blackbody radiation: If a closed box made of any material is heated to a uniform temperature, the interior will become filled with electromagnetic radiation (photons) with an intensity and spectrum determined by the temperature alone, independent of the composition of the box. Radiation with this intensity and spectrum is called blackbody, or thermal radiation. The intensity and spectrum are determined by the criterion of thermal equilibrium; i.e., only far this intensity and spectrum will the absorption and emission of photons by the walls be in balance for each wavelength, so the intensity for each wavelength can be independent of time. The universe today appears to be permeated with blackbody radiation at a temperature of 2.73 ° K--the cosmic background radiation-which we interpret as a remnant afterglow of the heat of the early universe.

  Database Transaction and Concurrency Control Transaction A transaction is an action or series of actions that are being performed by a single user or application program by a single user or application program, which reads or updates the contents of the database. Transaction execution process: ·          Start transaction ·          Execute DML ·          Check error in transaction execution ·          If error occur than Rollback transaction ·          Otherwise commit transaction Transaction Management: Transaction management handles all transactions property in DBMS. Database transactions are the events or activities such as series of data read or write operations on data objects stored in database system. A transaction in a database system must maintain ACID...