Spider web

A spider web, spiderweb, spider's web or cobweb (from the obsolete word "coppe", meaning "spider" http://www.askoxford.com/concise_oed/cobweb?view=uk) is a device built by a spider out of proteinaceous spider silk extruded from its spinnerets. The most familiar spider webs are those used for catching flying insects, but some are used to ensnare small vertebrates, and others only provide shelter. Webs typically contain multiple types of strands, including sticky and non-sticky ones. Some of these strands are stronger than steel strands of the same thickness; the microstructure of this material is under investigation for potential applications in industry.

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In spiders, there are several glands located at the spider's abdomen which produce the silken thread. Every gland produces a thread for a special purpose with several different glands currently identified, although spiders each possess only a few of these glands, never all seven at once.

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Normally a spider has three pairs of spinnerets, but there are spiders with just one pair or as many as four pairs of spinnerets, with each spinneret having its own function.

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An image of an orb web may be taken on paper by spraying it gently with any dark-coloured liquid, and then placing the paper intended for the impression behind the web, and drawing it gently towards you. The idea that an impression might be produced in this manner was suggested by observing the dew on the web in the morning. Alternatively, 'misting' the web with spray paint and then capturing the web on a contrasting sheet will produce satsifactory reslts.

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Protein: A protein (in Greek πρωτεϊνη = first thread) is a complex, high-molecular-weight organic compound that consists of amino acids joined by peptide bonds. Proteins are essential to the structure and function of all living cells and viruses....

Spider silk: Spider silk is a fibre secreted by spiders....

Spinneret: A spinneret is a spider's silk spinning organ. They are usually on the underside of a spider's abdomen, to the rear. Most spiders have six spinnerets; some have four or two....

Spider web related Images and Photos (experimental)

Cityscape Web Spider-Man Tee for Men	Cityscape Web Spider-Man Tee for Men	Web Of Spider-Man #1 Cover: Spider-Man Crouching	Golden Orb-Web Spider Madagascar
Wall Sticking Web Spider-Man Action Figure -- Blue -- 6''	Wall Sticking Web Spider-Man Action Figure -- Blue -- 6''	Wall Sticking Web Spider-Man Action Figure -- Black -- 6''	Wall Sticking Web Spider-Man Action Figure -- Black -- 6''
Spider's Web Amongst the Branches of a Tree	Gate with Spider Web the Breakers Newport RI	A Banana Spider's Web	Fairy on a Spider's Web