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 flat-bottomed boat on water carries heavy material along waterways, which requires the presence of element and matter, and is made from material, which requires a tool and a pattern.
External reference — all senses of the word “Barge” on Wiktionary. This atlas concept maps to only the slice of meaning relevant to the prerequisite graph.