An apple pie acquires a stellar history
Choose a familiar object, follow its material or production through several explanatory stages, and return to the object with those stages now visible.
Cosmos
Carl Sagan · 70 weeksAn apple pie acquires a stellar history
SHORT SOURCE EXCERPT“the carbon in our apple pies”
The chapter begins with a pie’s ingredients and asks where their atoms came from. Cutting the imagined pie down to an atom introduces structure and nuclear change; later, the discussion of stellar reactions and expelled matter returns to the carbon in the pie.
The object remains connected to the subject through a claimed material history, rather than serving only as a colorful analogy. The return gives the intervening discussion of stellar processes a concrete answer to deliver.
The source in context.
The materials of an apple pie lead into atoms, nuclear reactions and the lives and remnants of stars. Returning to familiar elements makes the account of stellar processes an explanation of the matter in ordinary life.
Open this chapterWhat this example supports
The object remains connected to the subject through a claimed material history, rather than serving only as a colorful analogy. The return gives the intervening discussion of stellar processes a concrete answer to deliver.
Its limit
The source compresses a complex scientific history. The lesson concerns the explanatory sequence and does not certify all of its scientific statements or claim the sequence improves comprehension.
Source & edition
Carl Sagan, Cosmos; supplied English text, introduction dated May 1980, precise edition unverified.
Supplied text, lines 2297–2417. The short quotation is checked against the source.
The completed whole-source AI draft supplied the broad architecture and candidate observations. This Codex editorial pass checked the original contents, all thirteen main chapter headings and boundaries, introduction and appendix headings, selected chapter opening/ending contexts, and the full retained example contexts. Existing pattern definitions and already reviewed examples were checked before writing this record. This was a targeted source-checked editorial pass, not an independent whole-book rereading.
Supplied English text with an introduction dated May 1980 and later biographical front matter; precise edition unverified.