Hemihelix

Video recording for a hemihelix with one perversion under water. Both ends are free to rotate.

A hemihelix is a curved geometric shape consisting of a series of helices with alternating chirality, connected by a perversion at the reversals.^[1]^[2]

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.^[3]

References

^ Amina Khan (April 24, 2014). "With a little rubber, scientists make weird, twisted hemihelix". Los Angeles Times.
^ Lydia Smith (April 24, 2014). "Scientists Discover New Rare 'Hemihelix' Shape Using Rubber Bands". International Business Times.
^ 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

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[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.

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