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Akutagawa was known for piecing together many different sources for many of his stories, and "The Spider's Thread" is no exception. He read Fyodor Dostoevsky's The Brothers Karamazov in English translation sometime between 1917 and 1918, and the story of "The Spider's Thread" is a retelling of a very short fable from the novel known as the Fable of the Onion, where an evil woman who had done ...
Spider silk has been used as a thread for crosshairs in optical instruments such as telescopes, microscopes, [128] and telescopic rifle sights. [129] In 2011, silk fibres were used to generate fine diffraction patterns over N-slit interferometric signals used in optical communications. [ 130 ]
The spider climbs to a high point and takes a stance with its abdomen to the sky, releasing fine silk threads from its spinneret until it becomes aloft. Journeys achieved vary from a few metres to hundreds of kilometres. Even atmospheric samples collected from balloons at five kilometres altitude and ships mid-ocean have reported spider landings.
A few defend themselves against wasps by including networks of very robust threads in their webs, giving the spider time to flee while the wasps are struggling with the obstacles. [73] The golden wheeling spider, Carparachne aureoflava, of the Namibian desert escapes parasitic wasps by flipping onto its side and cartwheeling down sand dunes. [74]
Tidarren sisyphoides is a species of spider in the family Theridiidae - the tangle web spiders. The male of this species is only ~1% the size of the female. At copulation, the male dies during insertion and remains attached to the female for more than two hours. However, the female does not eat her mate. The dead male is afterwards removed from ...
The golden silk orb-weaver is named for the yellow color of the spider silk used to construct these webs. Yellow threads of their web shine like gold in sunlight. Carotenoids are the main contributors to this yellow color, but xanthurenic acid, two quinones, and an unknown compound may also aid in the color. [3]
Theridiosoma gemmosum is a small spider. Females are 2–3 mm long, males smaller still at 1.5–2 mm. Females are 2–3 mm long, males smaller still at 1.5–2 mm. In both sexes, the carapace (upper surface of the cephalothorax ) is dark brown; the upper surface of the abdomen ( opisthosoma ) is silvery with variable dark lines and marks.
A classic circular form spider's web Infographic illustrating the process of constructing an orb web. A spider web, spiderweb, spider's web, or cobweb (from the archaic word coppe, meaning 'spider') [1] is a structure created by a spider out of proteinaceous spider silk extruded from its spinnerets, generally meant to catch its prey.