Level 1
outline

Hegel's 'System of Science'
- Logic
- Nature
  - Mechanics
  - Physics
    - General physicalities
      - Celestial body
        
        Sun
        
        Light
        
        [Photon] [Quantum]
        
        [Light Wave]
        
        [Propagation]
        
        [Stars]
        
        [Galaxies]
        
        Moon and comet
        
        Planet
      - Basic elements
      - Weather
    - Peculiarities
    - Physical body
  - Organism / Life
- Spirit/Mind

hegel.net

[Propagation](Light speed)