Energy, Observations and Comments A Conservative Field Requires a Single-Valued Potential Earth-Electrosphere and Earth-Ionosphere Capacitors Earth's Poynting Energy Flow The Hidden Energy Flow around us Electrostatic Fields of the Earth's Electrosphere Capacitor in Fair Weather and Thunderstorms Flow of Current and Energy Into, Through, and Along a Conductor Energy "collected" on a charge Fiber Fuse Effect Impact of Vacuum Engineering Lawandy's Experiment Field may be nonconservative for a multivalued potential The Ostrich Problem - Part 1 The Ostrich Problem - Part 2 Russia had Overunity Devices in 1930s Energy output of human body A "static" Poynting S-flow free-energy generator Topology and Energy Conservation Block Diagram: Sweet's Vacuum Triode