Fundamental Interactions

nuclear physics

There are four kinds of interaction between particles and are responsible for for all processes in the universe from atoms to interaction of the galaxies. The four fundamental interactions found in nature are Strong interaction,…

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Particles and Anti-particles

Electron and Positron: The pair of electron and positron are considered as antiparticles and they have the same mass and spin but have opposite charge. The annihilate with each other when they come in contact…

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Elementary particles

The elementary particles or subatomic particles discovered till date and are more than 200in number so far. They are called elementary because they are structureless and cannot be explained as a system of other particles….

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Mercury

Mercury is very hot and closest planet to the Sun. Mercury is visible to the naked eye and it is associated with Roman messenger of the gods. Mercury moves very quickly in the sky. Italian…

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Our Sun

The sun is a star. It is kind of a strange statement to say but since it is glowing so close to us we sometime forget that is just same kind of object like others….

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Beginning of Solar System

Solar System

Solar System is the name we have give to our cosmic surroundings. Solar system consists of the Sun, planets, moons, asteroids, comets, dust, and gases. Sun is the main component of the solar system as…

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Radioactivity

Radioactivity was first discovered by Henri Becquerel in 1896 when he noted that a uranium salt emitted radiation which showed its effect of a photographic plate. He further noticed that these radiation was spontaneous an…

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Inspiring talk about who we are

This small talk features excerpts from an interview with Professor Tom Burns of Ohio Wesleyan University and Director of Perkins Observatory. “The surface of the Earth is the shore of the cosmic ocean… Some part…

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Gauss Theorem

Gauss theorem (German mathematician Carl Friedrich Gauss) is used to relate flux (the number of lines of force crossing an area normally is called electric flux or simply flux) through a closed surface to the…

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