The vocabulary of frequency engineering — resonance, heterodyne, modulation, monochromatic light — each defined in language a non-specialist can actually use.
How to use this page: Tap a term for a plain-English explanation, or search to jump to one. Every card carries a one-line hint on its face; tap to open the full definition.
These are the terms our engineering primer uses in earnest. Read How It Works to see the same concepts assembled into a working instrument — or browse the original documents that gave them meaning.