Spider threads
نویسندگان
چکیده
منابع مشابه
Molecular nanosprings in spider capture-silk threads.
Spider capture silk is a natural material that outperforms almost any synthetic material in its combination of strength and elasticity. The structure of this remarkable material is still largely unknown, because spider-silk proteins have not been crystallized. Capture silk is the sticky spiral in the webs of orb-weaving spiders. Here we are investigating specifically the capture spiral threads ...
متن کاملCompliant threads maximize spider silk connection strength and toughness.
Millions of years of evolution have adapted spider webs to achieve a range of functionalities, including the well-known capture of prey, with efficient use of material. One feature that has escaped extensive investigation is the silk-on-silk connection joints within spider webs, particularly from a structural mechanics perspective. We report a joint theoretical and computational analysis of an ...
متن کاملSpider orb webs rely on radial threads to absorb prey kinetic energy.
The kinetic energy of flying insect prey is a formidable challenge for orb-weaving spiders. These spiders construct two-dimensional, round webs from a combination of stiff, strong radial silk and highly elastic, glue-coated capture spirals. Orb webs must first stop the flight of insect prey and then retain those insects long enough to be subdued by the spiders. Consequently, spider silks rank a...
متن کاملvan der Waals and hygroscopic forces of adhesion generated by spider capture threads.
Cribellar thread is the most primitive type of sticky prey capture thread found in aerial spider webs. Its outer surface is formed of thousands of fine fibrils that issue from a cribellum spinning field. The fibrils of primitive cribellar thread are cylindrical, whereas those of derived threads have nodes. Cribellar threads snag on insect setae but also adhere to smooth surfaces. A previous stu...
متن کاملSilk threads function as an 'adhesive cleaner' for nest space in a social spider mite.
Individuals of the social spider mite Stigmaeopsis longus live communally in narrow, humid nests made from silk threads and display nest sanitation behaviour through the coordinated deposition of faeces. We used artificial dust to experimentally determine that females of this species use silk threads to perform regular cleaning of the nest space and eggs. We first learned that silk-weaving beha...
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ژورنال
عنوان ژورنال: Astronomy & Geophysics
سال: 2002
ISSN: 1366-8781,1468-4004
DOI: 10.1093/astrog/43.5.5.8-a