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  2. Twisted sector - Wikipedia

    en.wikipedia.org/wiki/Twisted_sector

    In theoretical physics, a twisted sector is a configuration of sectors in orbifold conformal field theories. [ 1 ] In the first quantized formalism of string theory (or in two-dimensional conformal field theory ) the target space is an orbifold M/G if the observables of the string are only defined modulo G.

  3. Bowstring - Wikipedia

    en.wikipedia.org/wiki/Bowstring

    It is more trouble to make; the short length, towards one end, that will form the loop is reverse-twisted first. The ends of each bundle are then laid into the main length of the bundles, which are reverse-twisted in turn. The Japanese bowstring is made by reverse-twisting in different directions in the core and outer layers of the string.

  4. Necklace (combinatorics) - Wikipedia

    en.wikipedia.org/wiki/Necklace_(combinatorics)

    For this reason, a necklace might also be called a fixed necklace to distinguish it from a turnover necklace. Formally, one may represent a necklace as an orbit of the cyclic group acting on n -character strings over an alphabet of size k , and a bracelet as an orbit of the dihedral group .

  5. 'Antiques Roadshow': diamond and ruby jewelry worth a fortune

    www.aol.com/news/2014-08-12-antiques-roadshow...

    The collection consisted of a ring, a pendant necklace and a bracelet that was worth a lot more than she expected. The appraiser said, "The ring with the fine ruby and the very very white diamonds ...

  6. Speidel - Wikipedia

    en.wikipedia.org/wiki/Speidel

    Speidel introduced the Euro-Flex in 1988, an updated version of the Twist-O-Flex watchband. [42] The new watchband used heavier materials and contemporary European styling. [ 43 ] Speidel continued to expand its line of products with the introduction of the “Signet” watch line in 1994; [ 44 ] a patented plastic top shell watchband in 1995 ...

  7. Jewellery - Wikipedia

    en.wikipedia.org/wiki/Jewellery

    The largest ever single order to Cartier was made in 1925 by the Indian royalty, the Maharaja of Patiala, for the Patiala Necklace and other jewellery worth ₹ 1,000 million (equivalent to ₹ 210 billion, US$2.5 billion or €2.4 billion in 2023).

  8. Necklace - Wikipedia

    en.wikipedia.org/wiki/Necklace

    The court necklace originated from a Buddhist rosary sent in 1643 by the Dalai Lama to the first emperor of the Qing dynasty. The necklace is composed of 108 small beads, with 4 large beads of contrasting stones to symbolize the 4 seasons, and was placed between groups of 27 beads.

  9. Wire wrapped jewelry - Wikipedia

    en.wikipedia.org/wiki/Wire_wrapped_jewelry

    The key differences between making jewelry by wire wrapping and other approaches to making jewelry are two-fold; Wire wrapped jewelry is made of wire and sometimes findings similar to wire (head-pins, jump rings, etc.) Wire wrapped jewelry is made using mechanical connections between components and without soldering or other heat treatments.