: Michael Faraday, who had little formal mathematical training, used physical intuition to visualize "lines of force" or fields. His work on Electromagnetic Induction changed the world by enabling the creation of electric motors and generators.

⚠️ In older or scanned (pirated) PDFs, vector notation ((\vecE) vs. (E)), integral signs, or Greek letters may be mangled. Always verify unusual results with fundamental laws.