The Atom

Conservation of Angular momentum in action

Atomic History

Schrodinger Equation

Quarks models

Fourier transform

The Beta Decay

β− decay.

An unstable atomic nucleus with an excess of neutrons may undergo β− decay, where a neutron is converted into a proton, an electron and an electron-type anti-neutrino (the antiparticle of the neutrino).

This process is mediated by the weak interaction. The neutron turns into a proton through the emission of a virtual W− boson. At the quark level, W− emission turns a down-type quark into an up-type quark, turning a neutron (one up quark and two down quarks) into a proton (two up quarks and one down quark). The virtual W− boson then decays into an electron and an anti-neutrino.

Sourav Poudel asked about Beta Decay. If anyone has any vital information about beta decay, please share with us.

The geometric shape of a galactic core

The geometric shape of a galactic core, or a black hole. Why would the shape be tornadic or whirl pool like. The gravitational pull would be from the singularity and pull equally from all directions and not simply 360 degrees on a plane

Paul Dirac

Paul Adrien Maurice Dirac was born on 8th August, 1902, at Bristol, England.

"Dirac's work was concerned with the mathematical and theoretical aspects of quantum mechanics.

He began work on the new quantum mechanics as soon as it was introduced by Heisenberg in 1925 - independently producing a mathematical equivalent which consisted essentially of a noncommutative algebra for calculating atomic properties - and wrote a series of papers on the subject, published mainly in the Proceedings of the Royal Society, leading up to his relativistic theory of the electron (1928) and the theory of holes (1930). This latter theory required the existence of a positive particle having the same mass and charge as the known (negative) electron. This, the positron was discovered experimentally at a later date (1932) by C. D. Anderson, while its existence was likewise proved by Blackett and Occhialini (1933 ) in the phenomena of "pair production" and "annihilation".

In early 20th century Paul Dirac, came up with an equation that had a negative energy solution that was simply ignored.

-K A Solaman