move the content of automobile to a page about its construction, and have a more general article on the automobile page, which includes summaries about the automobile's history and social impact.
the same thing with the Roman Empire page. The page should be about the roman empire, not its emperors.
... + H+ + 2e- → NADPH
This consumes the H+ ions produced by the splitting of water, leading to a net production of O2, ATP, and NADPH with the consumption ...