(1)
Peng, H. Maxwell Equations Derived from (Coulomb’ Law + velocity), Maxwell-Type Gravity Derived from (Newton’s Law + velocity), Spin-Electromagnetics Derived from (Coulomb’ Law + spin), Spin-Gravity Derived from (Newton’s Law + Spin) --- Duality, Symmetry, and Uni. EJAS 2025, 13, 123-173.