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History of Matrix Mechanics and Heisenberg's Contributions to Quantum Mechanics

 "Birth of Quantum Mechanics" by Jagdish Mehra

A delightful lecture by Jagdish Mehra, later published as CERN Report in 1976, gives blow by blow account of how Heisenberg's ideas developed and what his contemporaries thought about his works.  This report is being made available to everyone as an attachement here.


Jagdish Mehra, "Birth of Quantum Mechanics ", Heisenberg Memorial Lecture ( March 30, 1976), Published as   CERN Report 76-10

Downloading Block Gmail attachment

Python script for downloading block Gmail attachment

Making Android App using Drupalgap

This is step by step guide for making andriod app using drupalgap.


fgets() Reads a String through the Keyboard

Using gets() for taking input in C gives some warning. To avoid this, we used fgets() method. It is very interesting and easy to use.

#include <stdio.h>

Python Code for extracting pattern

Uses lists and slicing in python

Reverse string using recursion

I am very excited. I got this program....

Python Script for modifying file contents

Hello Friends,

Presently, I am working with PHP (Specially modifying some script which is already written by some one else). I have to add code for session expire after 30 minutes. It is about more than 70 files in which i have to add following code segments :-

These lines go inside PHP Tag

$expireAfter = 30;

 //Check to see if our last action session

//variable has been set.

My M.Tech Thesis and Final Presentation

With this blog, i am sharing my M.Tech Thesis and final presentation.

Online Learning Tools: Wolfram|Alpha - Computation Knowledge Engine

"Wolfram|Alpha is an engine for computing answers and providing knowledge.

It works by using its vast store of expert-level knowledge and algorithms to automatically answer questions, do analysis, and generate reports."

Uncertainty Principle : An Application Straight from Landau Lifshitz

In this blog I take you to an original argument in the book, by Landau Lifshitz's on Qunatum Mechanics, about using uncertainty principle to determine if the number of bound states  for a potential will  be finite or infinite.