Unfolded Physics

The easiest way to represent and understand the interaction of subatomic particles is by using Feynman Diagrams. In theoretical physics, this method is used as a pictorial representation of the mathematical expressions of the behaviour of subatomic particles. This method was given by one of the famous scientist and lecturer  Richard Phillips  Feynman.   These diagrams are used to calculate the most difficult equations using diagrams. For example collision of two electrons: When two electrons collide they interact with each other and scatter apart. The interaction happens as follows: When two electrons are brought together they repel each other and move apart. This repulsion takes place due to the exchange of the gauge bosons. Gauge boson exchange is otherwise known as the exchange of particle or information. These are virtual particles. Here photons are the exchange particle involved. The photon released from one particle hits another electron and changes...

Yes, this theory is opted by almost all the scientist and observers of different disciplines especially the domains which cannot give well-defined experimental results. This approach was given by Paul Dirac in 1927.  It was later named as the Fermi's golden rule. Perturbation Theory is a mathematical analysis to find an estimated solution from the exact solution to the similar and simplest problem. THE BASIC IDEA BEHIND THE PERTURBATION THEORY This simple example can cheer you up: While making the tea we don't take a weighing machine to calculate the amount of tea powder to add to the milk boiling. We just take an approximate amount which we feel perfect. This happens in science too !!! As to understand this amazing approach in a more comprehensive mode we have to know a little mathematics. The sine series   This is the graph of a sine function. The series equation is     Here we take the expansion of sine se...