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  2. Letter frequency - Wikipedia

    en.wikipedia.org/wiki/Letter_frequency

    The California Job Case was a compartmentalized box for printing in the 19th century, sizes corresponding to the commonality of letters. The frequency of letters in text has been studied for use in cryptanalysis, and frequency analysis in particular, dating back to the Arab mathematician al-Kindi (c. AD 801–873 ), who formally developed the method (the ciphers breakable by this technique go ...

  3. Superscripts and Subscripts - Wikipedia

    en.wikipedia.org/wiki/Superscripts_and_Subscripts

    Superscripts and Subscripts is a Unicode block containing superscript and subscript numerals, mathematical operators, and letters used in mathematics and phonetics. The use of subscripts and superscripts in Unicode allows any polynomial, chemical and certain other equations to be represented in plain text without using any form of markup like HTML or TeX.

  4. Logistic map - Wikipedia

    en.wikipedia.org/wiki/Logistic_map

    The behavior of the logistic map is shown in Cobweb plot form. The animation shows the change in behavior as the parameter (r in the figure) is increased from 1 to 4, starting from an initial value of 0.2.)

  5. Pseudomonas aeruginosa - Wikipedia

    en.wikipedia.org/wiki/Pseudomonas_aeruginosa

    The species name aeruginosa is a Latin word meaning verdigris ("copper rust"), referring to the blue-green color of laboratory cultures of the species. This blue-green pigment is a combination of two secondary metabolites of P. aeruginosa , pyocyanin (blue) and pyoverdine (green), which impart the blue-green characteristic color of cultures. [ 7 ]

  6. Sindh - Wikipedia

    en.wikipedia.org/wiki/Sindh

    Sindh (/ ˈ s ɪ n d / SIND; Sindhi: سِنْڌ ‎; Urdu: سِنْدھ, pronounced; abbr. SD, historically romanized as Sind or Scinde) is a province of Pakistan.Located in the southeastern region of the country, Sindh is the third-largest province of Pakistan by land area and the second-largest province by population after Punjab.

  7. Intersex - Wikipedia

    en.wikipedia.org/wiki/Intersex

    This is an accepted version of this page This is the latest accepted revision, reviewed on 29 January 2025. Atypical congenital variations of sex characteristics This article is about intersex in humans. For intersex in other animals, see Intersex (biology). Not to be confused with Hermaphrodite. Intersex topics Human rights and legal issues Compulsory sterilization Discrimination Human rights ...

  8. Portola Valley, California - Wikipedia

    en.wikipedia.org/wiki/Portola_Valley,_California

    Portola Valley is located on the San Francisco Peninsula on the eastern slope of the Santa Cruz Mountains.The town is west of Interstate 280 and the southwest boundary is along Skyline Boulevard which more or less is the ridge of the mountains.

  9. Carbon nanotube - Wikipedia

    en.wikipedia.org/wiki/Carbon_nanotube

    A carbon nanotube (CNT) is a tube made of carbon with a diameter in the nanometre range ().They are one of the allotropes of carbon.Two broad classes of carbon nanotubes are recognized: