From the book
Empedocles’ The Testimonia, Volume II
Empedocles of Acragas · Diotimos Editions · 2026
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At a Glance
- The wordSeneca names dracones, translated coiled heaters, and miliaria, water-boilers.
- In this workIn explaining Empedocles’ account of hot springs, Seneca turns to appliances that “we are in the habit of making.”
- In this editionThe forms belong to the Latin witness, not an Empedoclean vocabulary.
- A place to readExplains water heated over subterranean fires through contemporary coiled heaters, boilers, and thin bronze pipes; the appliances are Seneca’s illustration.
Meaning
Seneca names dracones, translated coiled heaters, and miliaria, water-boilers. Fistulae are pipes; the accusative fistulas occurs in his description of their construction from thin bronze, aere tenui. These are technical Latin words for the apparatus through which he makes an earlier physical explanation intelligible.
Use in the book
In explaining Empedocles’ account of hot springs, Seneca turns to appliances that “we are in the habit of making.” Pipes of thin bronze are arranged on a descending circuit so that water passes repeatedly around the same fire and travels far enough to become hot: cold water enters and hot water emerges. The comparison gives a visible, constructed counterpart to water flowing underground above concealed fires. Its explanatory contribution is more specific than a general observation that fire warms water; the path keeps the moving water exposed to a heat source for sufficient distance. Yet the apparatus and the first-person claim about habitual manufacture belong to Seneca. They are not evidence that Empedocles invented, described, or used these Roman devices. Nor does the excerpt specify enough dimensions or construction details to identify a unique surviving design. The testimony preserves an attribution about natural heating and a later author’s technological illustration of it, which should be indexed together without confusing their authorship.
Places to read
- A 68 (testimony)Seneca, Natural Questions. Explains water heated over subterranean fires through contemporary coiled heaters, boilers, and thin bronze pipes; the appliances are Seneca’s illustration.
Translation in this edition
The forms belong to the Latin witness, not an Empedoclean vocabulary. The apparatus records alternatives to the participle describing how the pipes are laid around: circumlatas or circumductas for circumdatas. Those variants leave a circuit-like arrangement intelligible without establishing an exact engineering plan.