Origins. Conventions presume a chain of rhetorical acts that must begin somewhere, but often hard to pinpoint where. We can locate moments where conventions are beginning to take shape. T.
Plot’s chart shows key features of present-day line or scatter charts, even though meteorology has developed its own modern visual conventions
How we read barometric pressure now
Representations of objects become more abstract and isolated from context of use as mechanical engineering becomes a more specialized and sophisticated field.
Conventions branch off from other conventions in brand new directions