The Law of Cosmic Unfolding: Mechanic-Elastic Derivation of Galactic Dynamics with Z.I.P.P.E.D. Galaxy Rotation Calculator

This repository presents the definitive Golden Master of the Zwanenburg Inverse Proportionality Principle of Equilibrium Dynamics (Z.I.P.P.E.D.), a fully mechanical-elastic model for galaxy rotation curves.The Law of Cosmic Unfolding provides a complete alternative to dark matter, modeling spacetime as an elastic grid with the Zwanenburg Grade (\Zg), Delta Offset (\DeltaOffset), and Grid Elasticity (K_Z) as fundamental parameters.Key features include:Fully derived galaxy rotation curve formulas.Lagrangian of equilibrium including elastic grid contributions.5th Clamp / Hysteresis effect (Zwanenburg Ridge) ensuring flat rotation curves.A Python-based Z.I.P.P.E.D. Galaxy Rotation Calculator, reproducing 175 SPARC galaxy rotation curves with 0.2% accuracy.Fully reproducible results without any free parameters or dark matter assumptions.This work is intended for researchers in cosmology, galactic dynamics, astrophysics, and emergent gravity, providing a transparent, testable, and practical framework for alternative gravitational modeling.DOI / Calculator Access: https://doi.org/10.5281/zenodo.18380751 #ZIPPEDTheory #CosmicUnfolding #GalaxyRotationCurves #GalacticDynamics #DarkMatterAlternative #EmergentGravity #ZwanenburgGrade #SpacetimeElasticity #HysteresisEffect #ZwanenburgRidge #SPARC #Astrophysics #TheoreticalCosmology #MechanicsOfGalaxies #RotationCurveCalculator #GoldenMasterManuscript #AlternativeGravity #PhysicsSimulation #PythonCalculator