A General Unified Theory of Continuous Medium Based on the Conservation of Global Angular Momentum

science fiction Taking the zero conservation of total global angular momentum in a closed cosmic system as the sole first principle, this paper constructs a unified physical system of flowing continuous vacuum medium. Taking intrinsic spin angular momentum and orbital circulation angular momentum as the core underlying physical quantities, the theory uniformly interprets classical mechanics, relativistic mass-energy relations, fluid dynamics, electromagnetic interactions, strong and weak interactions, and cosmic gravitational effects. It independently deduces the mass spectrum of three generations of elementary particles and the constraint relations of coupling constants for four fundamental interactions, thoroughly eliminates space-time singularity problems from the physical origin, and accurately defines the physical essence of dark matter and dark energy, realizing the grand unification of physical laws covering microcosmic, macroscopic and cosmic scales. With concise and rigorous axioms, the theory is highly compatible with classical physics, modern quantum physics and relativity systems, possessing both original research value for cutting-edge basic theories and practical engineering application value.