Each concept here is mapped to its prerequisites — the ideas you'd need first to understand it — all the way down to four foundations: Space, Time, Energy, Pattern. Click any prerequisite to drill down, or scroll for the chain graph.
A concentrated pulse of energy in a very short time emerges from the sudden release of energy, which is the capacity to do work, manifesting as the ability to cause change or motion in a physical system, and is often accompanied by a burst of light.
External reference — all senses of the word “Flash” on Wiktionary. This atlas concept maps to only the slice of meaning relevant to the prerequisite graph.