Text at http://howfarawayisit.com/documents/ Music free version https://www.youtube.com/playlist?list=PLpH1IDQEoE8QQHdzxHzRnwNytx0me7Gag In our final segment...
how small is it, Quantum Electrodynamics, virtual photon, coupling constant, Feynman Diagram, matter field, Quantum Chromodynamics, QED, QCD, gluon, residual...