Photon - Electron Interaction

**Strings (S _{i}P_{j}A_{jk}) = S_{7}P_{4}A_{42} Base Sequence = 12735 String Sequence = 12735 - 4 - 42 **

Expressions Of Pj Problems

photon - Electron Interaction

Math

Pj Problems - Overview

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7 Spaces Of Interest - Overview

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*Feynman's QED Summary* was posited by physicist Richard P. Feynman (1918-1988).

(a) What is a photon?

(b) How are photons emitted or absorbed?

(c) Give examples of photons moving from place to place.

(d) Give examples of electrons moving from place to place.

**The strings**:

S_{7}P_{4}A_{42} (Motion - Non-Linear).
**The math**:

Pj Problem of Interest is of type *motion* (non-linear). There are several key problems of interest in the phenomenon of light. However, the *motion* of light is of central interest. This interest is emphasized in Feynman's summary (photons go from place to place). The particle-wave nature of light allows for both linear and wave motions of light. It is in the sense of the wave motion of light that the Pj Problem of Interest is of type *non-linear motion*.

(a) A photon is a particle of light. In order words, a tiny bundle of energy related to the amount of energy absorbed or emitted by an electron.

(b) Electron excitation is the start-point of photon emission or absorption. An energy source excites an electron. The electron absorbs the energy and is elevated to a higher energy level. The electron prefers its equilibrium level, so it emits energy absorbed as it returns to its equilibrium position.

(c) The motion of photons from luminous objects to illuminated objects. A *luminous object* is anything that can give off its own light (e.g. sun and stars in general, candles, fireflies, etc). An *illuminated object* is an object that can be seen because it is lit up by light from a luminous object.

(d) Electricity is a consequent of the motion of electrons.

The *point* **.** is a mathematical abstraction. It has negligible size and a great sense of position. Consequently, it is front and center in abstract existential reasoning.

Single Variable Functions

Conics

Ordinary Differential Equations (ODEs)

Vector Spaces

Real Numbers

Separation Of Variables As Solution Method For Homogeneous Heat Flow Equation

Newton And Fourier Cooling Laws Applied To Heat Flow Boundary Conditions

Fourier Series

Derivation Of Heat Equation For A One-Dimensional Heat Flow

The Universe is composed of *matter* and *radiant energy*. *Matter* is any kind of *mass-energy* that moves with velocities less than the velocity of light. *Radiant energy* is any kind of *mass-energy* that moves with the velocity of light.

Periodic Table

Composition And Structure Of Matter

How Matter Gets Composed

How Matter Gets Composed (2)

Molecular Structure Of Matter

Molecular Shapes: Bond Length, Bond Angle

Molecular Shapes: Valence Shell Electron Pair Repulsion

Molecular Shapes: Orbital Hybridization

Molecular Shapes: Sigma Bonds Pi Bonds

Molecular Shapes: Non ABn Molecules

Molecular Orbital Theory

More Pj Problem Strings