My PhD Thesis, Preliminary Exam ! Reply

But my own PhD thesis is a kind of different tale altogether. For my work there is no CP Violation.

In CP Violation two leptons (electrons and positrons are leptons) are imparted quite good amount of energy and made to collide against each other. Thus just like in CERN lab, there is a much smaller tunnel at the Tsukuba facility, called an accelerator-detector facility. In this facility an electron and positron pairs are given enough energy and made to circle in opposite direction.

When they collide, they are made to do so, right inside the detector. They produce pairs of B-mesons. The B-meson one and two, they are almost at rest when they are produced, in the lab frame of reference. But the matter of fact is the B-mesons are produced from what are called Upsilon (4S) mesons.

These Upsilons are called resonances, and they are highly unstable (all resonances are short lived elementary particles). So they turn into B-mesons as soon as they are created. More…

Uncertainty Principle and Photography ! Reply

why a moving object becomes fuzzy when you take its picture. Speed bears an uncertainty with momentum (hence energy ) just like time with energy and position with momentum. But for photons which are always ultra-relativistic we should not talk about its positions. Due to speed (relative motion of objects such as your and moving while other body parts being still) energy and momentum are uncertain. Hence position becomes uncertain. (Do not confuse between position of photon vs position/location on your image although its connected to wave-function collapse BEFORE or AFTER the observation ? is the question you should be asking, BEFORE the observation no sense of photon’s position, but AFTER collapse we do see only a particular outcome in terms of fuzzy images.) More…

The hydrostatic forces on an aquarium ! Reply

An aquarium 2 m long, 1 m wide, and 1 m deep is full of water. Find

(a) The hydrostatic pressure on the bottom of the aquarium,

(b) The hydrostatic force on the bottom, and the hydrostatic force on one end of the aquarium. More…

Learning Stoke’s Theorem by example ! Reply

Calculate CurlF and then use Stokes’ theorem to compute the flux of CurlF through the given surface as a line integral. F  =  y,  x,  x2 + y2    , the upper hemisphere; x2 + y2 + z2 = 1,  z ≥ 0. More…

The method of Lagrange Multiplier ! Optimize multivariate functions. Reply

Yesterday I learned the beautiful method of Lagrange Multiplier, to find the minima or maxima of multivariate functions. eg

If I ask you what’s the minimum value of a function, f(x,y) = xy, subject to the constraint 5x-y = 4, the answer would be -4/5. The method is this. Ensure that first-partials of function f(x,y) exist. That is fx = (∂f)/(∂x) is not zero, and fy = (∂f)/(∂y) is not zero. Else method won’t work.

For the given example the f(x,y) = xy, because fx = y and fy = x, our method will work.

According to the method, we have 3 equations:

(1) fx + λgx = 0

(2) fy + λgy = 0

(3) 5x − y = 4 More…

How to recognize words in various languages … a magic formula 1

1. the languages are “read” into Roman. Roman without any particular rules not defined is arbitrary. That is it becomes neutral, devoid of biases from language rules. It unlocks the languages into their neutral forms.

The languages are basically a rule or lock defined to capture particular meanings from a vast arbitrary tract of phonetics and noise. eg roman: t corresponds to 4 locks in Indian Language system and two locks in Japanese. t as in tatami, t as in taberu are the soft t and heavy t in Japanese. But in Indian t as in tumhara, t as in tenis, t as in thoda and t as in beithak are 4 different locks, 2 soft and 2 heavy.

But in Roman they are all but t. Note that English is not Roman. English is simply a hidden phonetics where you know what the lock is, but you do not show it explicitly. eg time is English, but in Indian lock its thaim, with t in thaim same as the t locked in beithak. More…

Comparing Hiragana and Indian alphabet ! 1

Indian Consonants have an internal vowel, a, not present in Hiragana [Japanese native alphabet]. This is also true in Katakana. [Japanese alphabet for imported phonetics or non native words]

That means 39 base consonants (of India), will be all said in a different way, which could not be accommodated by Hiragana or Katakana. So, I think this is just one vowel more, for Hiragana.

The Hiragana a is actually an abbreviated aa of Indian sound-base.

The other differences from Hiragana are how {hu, fu} are said the same way, but note that, in the alphabet itself {hu, bu, pu, fu} are a set of degenerated consonant and also so in Indian system. That means for hiragana these elements are simply similar and this fact reflects with the same symbol denoting the 4 elements, with small difference accommodated More…

How does the world make money? Reply

Poverty is a problem much more severe than the capitalist exploitation. Its a problem of human morale. Capitalism is also a problem of human morale, but we haven’t reached that vantage yet where we could be intellectually bothered about lack of morality from a person who is rich.

We are only shouting and we are activists. But most of the activists of India are the secret mistress of Alibaba. They are rich, they are intelligent and they are credit hungry for which they have created for themselves an Alibaba incorporation by making an industrialized network. More…

Life’s Journey ! Reply

Life’s Journey. In a real life situation assume you are being taken inside a tunnel that you do not know is circular or straight up or straight down. You simply count how far from beginning you have been. Even if you are at T you do not want to loose the privilege of B. If B wasn’t good you were never going to be at T. So to respect B, T must be as close as you can make it.

Life's Journey is circular. If not its unfulfilled.

Life’s Journey is circular. If not its unfulfilled.