1. The document defines various terms related to electromagnetic phenomena, waves, radiation, and satellite technologies. 2. Terms defined include things like neutrons, protons, wavelengths, bandwidth, shielding, cartography, centripetal force, latitude, frequencies, molecules, nanometers, quantum, radiation, satellites, signals, transmission, GPS, and more. 3. Many terms relate to units of measurement for electromagnetic properties, components of waves and radiation, different categories of satellites and orbits, and technologies involving wireless communication and positioning systems.