Ideas of Brian R. Martin, by Theme

[British, fl. 2011, Former Professor of Physics, University College, London.]

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27. Natural Reality / A. Classical Physics / 1. Mechanics / c. Forces
The strong force has a considerably greater range than the weak force
27. Natural Reality / A. Classical Physics / 2. Thermodynamics / c. Conservation of energy
If an expected reaction does not occur, that implies a conservation law
27. Natural Reality / B. Modern Physics / 2. Electrodynamics / a. Electrodynamics
Electron emit and reabsorb photons, which create and reabsorb virtual electrons and positrons
27. Natural Reality / B. Modern Physics / 2. Electrodynamics / b. Fields
A 'field' is just a region to which points can be assigned in space and time
The Higgs field, unlike others, has a nozero value in a state without particles
27. Natural Reality / B. Modern Physics / 2. Electrodynamics / c. Electrons
Many physicists believe particles have further structure, if only we could see it
27. Natural Reality / B. Modern Physics / 2. Electrodynamics / d. Quantum mechanics
Uncertainty allows very brief violations of energy conservation - even shorter with higher energies
The Exclusion Principle says no two fermions occupy the same state, with the same numbers
27. Natural Reality / B. Modern Physics / 4. Standard Model / b. Standard model
The standard model combines theories of strong interaction, and electromagnetic and weak interaction
27. Natural Reality / B. Modern Physics / 4. Standard Model / c. Particle properties
The properties of a particle are determined by its quantum numbers and its mass
Eletrons don't literally 'spin', because they are point-like
Virtual particles surround any charged particle
27. Natural Reality / B. Modern Physics / 5. Unified Models / b. String theory
String theory only has one free parameter (tension) - unlike the standard model with 19
27. Natural Reality / E. Chemistry / 2. Modern Elements
An 'element' is what cannot be decomposed by chemistry