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  1. en.wikipedia.org › wiki › Wedding_ringWedding ring - Wikipedia

    A wedding ring or wedding band is a finger ring that indicates that its wearer is married. It is usually forged from metal , traditionally gold or another precious metal . Rings were used in ancient Rome during marriage.

  2. en.wikipedia.org › wiki › Class_ringClass ring - Wikipedia

    A class ring in a ring case. This ring is made of white ultrium and contains a synthetic sapphire gemstone. Damavand College class ring of 1975 In the United States and Canada, a class ring (also known as a graduation, graduate, senior, or grad ring) is a ring worn by students and alumni to commemorate their final academic year and/or graduation, generally for a high school, college, or ...

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  4. Russian Wedding Rings, also known as Triple rolling rings, are three interlocking bands of rose, white, and yellow gold, worn on the right hand. Each band is much thinner than normal bands. The three bands symbolize the Holy Trinity of Christian orthodox religion, or the past, present, and future of the couple.

  5. en.wikipedia.org › wiki › P–n_diodep–n diode - Wikipedia

    This article provides a more detailed explanation of p–n diode behavior than is found in the articles p–n junction or diode . A p–n diode is a type of semiconductor diode based upon the p–n junction. The diode conducts current in only one direction, and it is made by joining a p -type semiconducting layer to an n -type semiconducting layer.

  6. Etymology Wedding procession of the Guangxu Emperor, 1889 Wedding procession of the Guangxu Emperor The two-Chinese character word 婚姻 (pinyin: hūnyīn, literally "marriage") can be analyzed as follows: 婚 (hūn) was defined as the father of a man's wife (e.g. a man's father-in-law) in Erya, the earliest known Chinese dictionary; but now it generally means "marriage" in Modern Standard ...

  7. pn junction isolation is a method used to electrically isolate electronic components, such as transistors, on an integrated circuit (IC) by surrounding the components with reverse biased p–n junctions .

  8. en.wikipedia.org › wiki › Colored_goldColored gold - Wikipedia

    Rose gold diamond engagement ring Rose gold is a gold-copper alloy widely used for specialized jewelry.Rose gold, also known as pink gold and red gold, was popular in Russia at the beginning of the 19th century, and was also known as Russian gold. [citation needed] Rose gold jewelry is becoming more popular in the 21st century, and is commonly used for wedding rings, bracelets, and other jewelry.