The strings of the violin spider silk


06/03/2012

Japanese researcher has used thousands of strands of spider silk to create a whole set of strings for a violin. The strings of the web, as experts note, emit more "soft and deep voice" compared to traditional forest made of animal gut or steel strings. This may be due to the method of twisting the strands forming the "dense structure" that leaves practically no space between the threads. Work to create strings of spider silk will be described in detail in the next issue of the journal Physical Review Letters.

Shigeyoshi Osaki (Shigeyoshi Osaki) from the Medical University of Nara (Nara Medical University) in Japan interested in the mechanical properties of spider silk for many years. In particular, he studied the silk "dragline" by which spiders can easily be kept in limbo by defining the degree of its strength in a paper published in the 2007 edition of Polymer Journal.

Dr. Osaka perfected techniques to get a large number of silk threads of a spider web spiders bred in captivity, and now turned his attention to the possibility of using this wonderful material.

"Creating strings for musical instruments such as, for example, the violin has been the subject of many scientific studies" - writes Osaka. "However, some details of the work remained unclear, as most of the musicians were more interested in the structure of the violin body, not the properties of strings."

Dr Osaki used 300 female spider Nephila maculata - a kind of "golden Web Spiders", which are famous for its very large and complex web of the world, for the production of silk. Provided for the creation of each string torsional researcher about 3000-5000 individual strands of silk in one direction, to thereby form a beam. Next, three of these bundles twisted together in the opposite direction produced string. Then the doctor Osaka determine their strength and vulnerability to rupture, which is the main indicator for any violinist who wants to avoid a situation where a string on the instrument breaks right at the time of the concert.

The strings are made of spider silk have been less robust than traditional ones, but seldom-used wood from the gut of animals, but more durable than the string, made on the basis of nylon and coated with aluminum.

Additional analysis, in which the electron microscope was used showed that while the strings themselves were perfectly round in cross-section filaments are compressed in a number of different forms, allowing them to stay close to each other without leaving the slightest empty space.

Dr. Osaka stressed that this is the main characteristic of the strings, which gives them incredible strength, durability and unique flavor of sound. "Some professional violinists argue that the spider thread ... publish preferred timbre, capable of creating new music" - said Dr. Osaka. "Strings for violin are another example of the practical application of spider silk as a high quality product, but also a tool for creating a distinctive type of timbre for both musicians and for music lovers all over the world."

Original: BBC


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