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2. Wedding ring - Wikipedia

   en.wikipedia.org/wiki/Wedding_ring

   A pair of wedding rings. A wedding ring or wedding band is a finger ring that indicates that its wearer is married. [1] It is usually forged from metal, traditionally gold or another precious metal. Rings were used in ancient Rome during marriage. [2] In western culture, a wedding ring is typically worn on the base of the left ring finger.

3. Tungsten - Wikipedia

   en.wikipedia.org/wiki/Tungsten

   Tungsten occurs in many alloys, which have numerous applications, including incandescent light bulb filaments, X-ray tubes, electrodes in gas tungsten arc welding, superalloys, and radiation shielding. Tungsten's hardness and high density make it suitable for military applications in penetrating projectiles.

4. Tungsten disulfide - Wikipedia

   en.wikipedia.org/wiki/Tungsten_disulfide

   Tungsten disulfide is the first material which was found to form non-carbon nanotubes, in 1992. [6] This ability is related to the layered structure of WS 2 , and macroscopic amounts of WS 2 have been produced by the methods mentioned above. [ 13 ]

5. Tungsten carbide - Wikipedia

   en.wikipedia.org/wiki/Tungsten_carbide

   Tungsten carbide (chemical formula: W C) is a chemical compound (specifically, a carbide) containing equal parts of tungsten and carbon atoms. In its most basic form, tungsten carbide is a fine gray powder, but it can be pressed and formed into shapes through sintering [7] for use in industrial machinery, engineering facilities, [8] molding blocks, [9] cutting tools, chisels, abrasives, armor ...

6. Wolframite - Wikipedia

   en.wikipedia.org/wiki/Wolframite

   Another catalytic use of tungsten is as a De-NO X catalyst which is used in the treatment of nitrogen oxide emissions to convert harmful nitrogen oxides into inert N 2 gas. [14] Another modern day use of tungsten is as a lubricant. Tungsten disulfide (WS 2) is a lubricant with a dynamic coefficient of friction of ~0.03. Tungsten disulfide can ...

7. Mangalasutra - Wikipedia

   en.wikipedia.org/wiki/Mangalasutra

   During a Hindu wedding, the mangalasutra is tied around the neck of the bride by the groom. The ceremony is known as the Mangalya Dharanam ( Sanskrit for 'wearing the auspicious'). Mangalasutra literally means "an auspicious thread" [ 1 ] that is knotted around the bride's neck and is worn by her for the remainder of her marriage.