Heaviside Units

Heaviside units are a system of measurement used in electromagnetism that simplifies equations by reducing the number of constants needed, particularly the permittivity and permeability of free space. Named after Oliver Heaviside, this system blends electric and magnetic units, making Maxwell’s equations cleaner and more symmetric. In practical terms, Heaviside units often turn factors of \( 4\pi \) into more manageable numbers, streamlining calculations in physics and engineering. They're commonly used in theoretical work, especially in the United States, to facilitate easier understanding and manipulation of electromagnetic equations.