Chirality
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Chirality is the property of an object not being identical to its reflection, or mirror image. An object is chiral if it is not identical to its reflection; that is, it cannot be superposed onto itsel
A natural left-handed helix, made by a certain climber plant's tendril
Shells of two different species of sea snail: on the left is the normally sinistral (left-handed) shell of Neptunea angulata, on the right is the normally dextral (right-handed) shell of Neptunea despecta
Wachendorfia paniculata flower with style left
Tendril perversion
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Tendril perversion is a geometric phenomenon sometimes observed in helical structures in which the direction of the helix transitions between left-handed and right-handed. Such a reversal of chirality
Chirality
…Sinistral and dextral Tendril perversion Chirality (physics…
A tendril of Bryonia dioica exhibiting tendril perversion
Cucurbita pepo exhibiting tendril perversion
A telephone handset cord exhibiting tendril perversion