Example
example
graph TB
Physics --> ClassicalPhysics
Physics --> ModernPhysics
ClassicalPhysics --> Mechanics
ClassicalPhysics --> Electromagnetism
ClassicalPhysics --> Thermodynamics
ModernPhysics --> QuantumPhysics
ModernPhysics --> Relativity
Mechanics --> Statics
Mechanics --> Dynamics
Electromagnetism --> Electrostatics
Electromagnetism --> Electrodynamics
QuantumPhysics --> QuantumMechanics
QuantumPhysics --> QuantumFieldTheory
Relativity --> SpecialRelativity
Relativity --> GeneralRelativity
