The spin of electrons is studied (Spintronics) and applied to, for example, quantum computing. In this
article, utilizing UMFT (Universal Mathematical Field Theory), we establish the Spin-Electromagnetics
(Spin-EM) from the Coulomb’s law and the spin of electric source. Spin-EM predicts several new effects
including the Spin-Lorentz-type force, and Spin-Lagrangian-Lorentz-type force. When experimentally
confirmed, the Spin-force would be a NEW FORCE. The UMFT has been established and utilized to
derive the Maxwell electromagnetics (Maxwell-EM) and Maxwell-type gravity (Gravito-EM). UMFT
shows that mathematical identities lead to physical dualities, such as the duality between Maxwell-EM,
Gravito-EM, and Spin-EM. The well-known-concepts, effects, and phenomena of Maxwell-EM may be
directly converted to that of Spin-EM. The Maxwell-EM, Gravito-EM, and Spin-EM are all derived from
UMFT and thus, they are dual to each other, and can be unified in the frame of UMFT.
