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Equivalent Systems
Equivalence or Equivalent may refer to: Arts and entertainment *Album-equivalent unit, a measurement unit in the music industry *Equivalence class (music) *''Equivalent VIII'', or ''The Bricks'', a minimalist sculpture by Carl Andre *'' Equivalents'', a series of photographs of clouds by Alfred Stieglitz Language *Dynamic and formal equivalence in translation *Equivalence (formal languages) Law *The doctrine of equivalents in patent law *The equivalence principle as if impacts on the direct effect of European Union law Logic *Logical equivalence, where two statements are logically equivalent if they have the same logical content * Material equivalence, a relationship where the truth of either one of the connected statements requires the truth of the other Science and technology Chemistry *Equivalent (chemistry) *Equivalence point *Equivalent weight Computing *Turing equivalence (theory of computation), or Turing completeness *Semantic equivalence in computer metadata Econo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Album-equivalent Unit
The album-equivalent unit, or album equivalent, often shortened to just unit, is a sales metric in the music industry that defines the number of streaming media, songs streamed and music download, songs downloaded equal to one Record sales, traditional album sale. The album-equivalent unit was introduced in the mid-2010s as an answer to the drop of album sales in the 21st century. Album sales more than halved from 1999 to 2009, declining from a $14.6 to $6.3 billion industry, partly due to cheap digitally downloaded Single (music), singles. For instance, the only albums that Music recording certification, went platinum in the United States in 2014 were the Frozen (soundtrack), ''Frozen'' soundtrack and Taylor Swift's ''1989 (album), 1989'', whereas several albums had gone platinum in 2013. The use of album-equivalent units transformed the Record chart, music charts from a ranking of best-selling albums into a ranking of most popular albums. The International Federation of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
