Nereide

drnereide.bsky.social

17 October 2026 12:24

The #fractal comes from iterating the chain: each circle becomes the boundary of a new inner chain. The result is a self-similar set, akin to an Apollonian gasket, generated by inversion from a concentric arrangement. The animation shows its structure. #iteachmath #mathart #Mathsky 🧪

Nereide

drnereide.bsky.social

17 October 2026 12:23

A #SteinerChain is a set of n circles, each tangent to its neighbors and to two given non-intersecting circles. If a closed chain exists, Steiner’s porism guarantees infinitely many. Their centers lie on an ellipse. More: mathworld.wolfram.com/SteinerChain... #Mathsky #iteachmath 🧪 #mathart

Nereide

drnereide.bsky.social

17 October 2026 12:23

Animation of a fractal built on Steiner chains: tangent circles nested to infinity, preserving tangencies at every level. Credits: Gábor Damásdi (szimmetria-airtemmizs.tumblr.com/about) #mathematics #fractals #SteinerChain #Mathsky🧪 #iteachmath #mathart

www.nature.com/articles/s41...

www.cell.com/current-biol... An ancient polymorphism in myosin I a/b determines chiral variation in Japanese Euhadra snails