# Preferred Frame Pre-Prints [Home](/) ยท [README.md](/README.md.html) ยท [Contact Us](/contact%20us.md.html) ---
Modified Name ---------------- ---- 2026-01-24 01:20 ๐ Discrete Electric Charge as a Topological Invariant of Source-Free Maxwell Fields/ 2026-01-24 01:20 ๐ PNPMD Markdown Specification/ 2026-01-24 01:20 ๐ Point-Not-Point: Deriving Maxwell Electrodynamics from a Scalar Energy Field and Explaining Particle-Wave Duality/ 2026-01-24 01:20 ๐ Polarization Is Just Another Field/ 2026-01-24 01:20 ๐ Topology-Discrete vs Energy-Continuous Forces in Maxwell Tori/