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A hemihelix is a curved geometric shape consisting of a series of helices with alternating chirality, connected by a perversion at the reversals.

The formation of hemihelices with periodic distributions of perversions in slender structures is understood in terms of competing buckling instabilities generated by in-plane stresses.

References

1. Amina Khan (April 24, 2014). "With a little rubber, scientists make weird, twisted hemihelix". Los Angeles Times.
2. Lydia Smith (April 24, 2014). "Scientists Discover New Rare 'Hemihelix' Shape Using Rubber Bands". International Business Times.
3. Liu, J.; Huang, J.; Su, T.; Bertoldi, K.; Clarke, D. R. (2014). "Structural Transition from Helices to Hemihelices". PLOS ONE. 9 (4): e93183. Bibcode:2014PLoSO...993183L. doi:10.1371/journal.pone.0093183. PMC 3997338. PMID 24759785.

External links

• The dictionary definition of hemihelix at Wiktionary

v t e Spirals, curves and helices
Curves	Algebraic Curvature Gallery List Topics
Helices	Angle Antenna Boerdijk–Coxeter Hemi Symmetry Triple Biochemistry 310 Alpha Beta Double Pi Polyproline Super Triple Collagen
Spirals	Archimedean Cotes's Epispiral Hyperbolic Poinsot's Doyle Euler Fermat's Involute List Logarithmic Golden On Spirals Padovan Pitch angle Theodorus Spirangle Ulam

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