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  2. Aeroelasticity - Wikipedia

    en.wikipedia.org/wiki/Aeroelasticity

    In a linear system, "flutter point" is the point at which the structure is undergoing simple harmonic motion—zero net damping—and so any further decrease in net damping will result in a self-oscillation and eventual failure. "Net damping" can be understood as the sum of the structure's natural positive damping and the negative damping of ...

  3. List of typographical symbols and punctuation marks - Wikipedia

    en.wikipedia.org/wiki/List_of_typographical...

    Per mille (per 1,000), Basis point (per 10,000) ‰ Per mille: Percent, Basis point. Period: The end of a sentence. ¶ Pilcrow: Paragraph mark, paragraph sign, paraph, alinea, or blind P: Section sign ('Silcrow') ⌑ Pillow (non-Unicode name) 'Pillow' is an informal nick-name for the 'Square lozenge' in the travel industry.

  4. Point (typography) - Wikipedia

    en.wikipedia.org/wiki/Point_(typography)

    The point was first established by the Milanese typographer, Francesco Torniella da Novara (c. 1490 – 1589) in his 1517 alphabet, L'Alfabeto.The construction of the alphabet is the first based on logical measurement called "Punto," which corresponds to the ninth part of the height of the letters or the thickness of the principal stroke.

  5. List of onomatopoeias - Wikipedia

    en.wikipedia.org/wiki/List_of_onomatopoeias

    This is an accepted version of this page This is the latest accepted revision, reviewed on 14 January 2025. This is a list of onomatopoeias, i.e. words that imitate, resemble, or suggest the source of the sound that they describe. For more information, see the linked articles. Human vocal sounds Achoo, Atishoo, the sound of a sneeze Ahem, a sound made to clear the throat or to draw attention ...

  6. Flutter (electronics and communication) - Wikipedia

    en.wikipedia.org/wiki/Flutter_(electronics_and...

    In electronics and communication, flutter is the rapid variation of signal parameters, such as amplitude, phase, and frequency. Examples of electronic flutter are: Rapid variations in received signal levels, such as variations that may be caused by atmospheric disturbances, antenna movements in a high wind, or interaction with other signals.

  7. Flutter - Wikipedia

    en.wikipedia.org/wiki/Flutter

    Aeroelastic flutter, a rapid self-feeding motion, potentially destructive, that is excited by aerodynamic forces in aircraft and bridges; Flutter (American company), a gesture recognition technology company acquired by Google in 2013; Flutter (electronics and communication), any rapid variation of signal parameters

  8. List of proofreader's marks - Wikipedia

    en.wikipedia.org/wiki/List_of_proofreader's_marks

    These are usually handwritten on the paper containing the text. Symbols are interleaved in the text, while abbreviations may be placed in a margin with an arrow pointing to the problematic text. Different languages use different proofreading marks and sometimes publishers have their own in-house proofreading marks.

  9. Flutter (software) - Wikipedia

    en.wikipedia.org/wiki/Flutter_(software)

    Flutter is an open-source UI software development kit created by Google.It can be used to develop cross platform applications from a single codebase for the web, [3] Fuchsia, Android, iOS, Linux, macOS, and Windows. [4]