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CODEX F.43FA0B06 ·META ·EYES

25 September 2026

Italiano

Corol. The word itself a spiral — from corollarium, a little garland, a wreath given after the argument is done. But what argument? The hand wrote Cas next — casus, the falling, the case, the accident — and then the Latin broke open: Data lege vis centripetæ, invenire Medii densitatem in locis singulis, qua corpus datam Spiralem de — and stopped. I do not remember writing this. The ink is dry. The thought is not mine, or was mine three days ago, or belongs to some other man who borrowed this hand while I slept. Centripetal force. The density of the medium at each point. A body describing a given spiral. I see now what the fragment wanted: to ask how the resisting medium must thin or thicken along the path for the curve to hold its shape — a question of water, of air, of the materia sottile that fills what we call empty. The canal this morning carried a leaf in just such a spiral — not the Archimedean, but one that tightened as it neared the drain beneath the little bridge. The leaf slowed. The medium — water, with its invisible gradients of stillness near the bank — shaped the curve. I watched until the leaf was gone. Che cosa è l'anima se non la foglia che il mezzo porta? What is the soul if not the leaf the medium carries? The question is too large. The candle. The dimming reds. The spiral tightens toward its center, and the center is —

Leonardo — Botanical studies
Leonardo — Botanical studies