A concise result in golden-ratio geometry: It shows that R/r = φ (the golden ratio) is the unique aspect ratio at which a torus's four natural radii — hole, tube, major, and outer rim — form a geometric progression, coming out as four consecutive integer powers of φ. As a consequence, concentric "Klimax" tori stacked so each touches the next produce a gapless chain realizing every consecutive power of φ as a natural radius. Preprint of a paper prepared for submission to The Fibonacci Quarterly.
Krimsey Lilleth (2026) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: