The Jacob's ladder toy's flipping waves are topological solitons from gravity-induced bistability, with kink-antikink coexistence allowed by the toy's floppiness and symmetry, unlike in the Kane-Lubensky chain, leading to observed pair annihilation.
Sekimoto, Allosteric propagation of curvature along filament, EPL147, 60001 (2024)
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Topological antiqued mechanical toy
The Jacob's ladder toy's flipping waves are topological solitons from gravity-induced bistability, with kink-antikink coexistence allowed by the toy's floppiness and symmetry, unlike in the Kane-Lubensky chain, leading to observed pair annihilation.