Equation of a circle passing through three given points [A.R. Khalifa's Formula]

A. R. Khalifa (Azizur Rahman Khalifa), Professor of Dhaka University, deduced a simple formula for determining an equation of a circle which passes through three (given) points. For this reason, the formula is also known as A. R. Khalifa's Formula. ...

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Heisenberg's Uncertainty Principle

In a game of Cricket, a form of light called radar is often used to measure the speed of balling. The radar is shot at the ball to measure its speed but this radar never changes the direction of the ball. If it did, it wouldn't be used in the game. But it is a different case in the world of atoms. The subatomic particles inside the atoms are so small that light waves...

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The Big Bang Theory

This is currently the most popular theory explaining how the universe was created. According to this theory, The Universe had its origin from a giant explosion known as the Big Bang. The matter flung out from the explosion condensed into galaxies that are still rushing outside. A common analogy explains that space itself is expanding, carrying galaxies with it. The big...

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Higgs boson Particles

Higgs Boson is a theoretical particle deduced as a result of the ‘Standard Model’ of Particle Physics. Some call it ‘The God Particle’ as it is considered to be the center to our understanding of the nature of matter. But to understand about God Particle, we first have to understand the standard model and all that’s related to this. In particle physics,...

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Schrödinger's Cat

A principle of the quantum theory named "superposition" states that if we don't know what the state of an object is then as long as we don't check, the object is actually in all possible states simultaneously.  Erwin Schrodinger proposed a theoretical experiment in which a cat was put in a box with a bottle of poison and a tiny amount of radioactive substance and...

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