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  2. Rifleman's rule - Wikipedia

    en.wikipedia.org/wiki/Rifleman's_rule

    The rule says that only the horizontal range should be considered when adjusting a sight or performing hold-over in order to account for bullet drop. Typically, the range of an elevated target is considered in terms of the slant range , incorporating both the horizontal distance and the elevation distance (possibly negative, i.e. downhill), as ...

  3. Guitar tunings - Wikipedia

    en.wikipedia.org/wiki/Guitar_tunings

    Standard tuning is the tuning most frequently used on a six-string guitar and musicians assume this tuning by default if a specific alternate (or scordatura) is not mentioned. In scientific pitch notation, [4] the guitar's standard tuning consists of the following notes: E 2 –A 2 –D 3 –G 3 –B 3 –E 4.

  4. List of guitar tunings - Wikipedia

    en.wikipedia.org/wiki/List_of_guitar_tunings

    Mi-composé is a tuning commonly used for rhythm guitar in African popular music forms such as soukous and makossa. [61] It is similar to the standard guitar tuning, except that the d string is raised an entire octave. This is accomplished by replacing the d string with an e' string and tuning it to d'.

  5. External ballistics - Wikipedia

    en.wikipedia.org/wiki/External_ballistics

    The Excel application then employs custom macroinstructions to calculate the trajectory variables of interest. A modified 4th order Runge–Kutta integration algorithm is used. Like Pejsa, Colonel Manges claims center-fired rifle accuracies to the nearest one tenth of an inch for bullet position, and nearest foot per second for the projectile ...

  6. Musical tuning - Wikipedia

    en.wikipedia.org/wiki/Musical_tuning

    Man turning tuning pegs to tune guitar Tuning of Sébastien Érard harp using Korg OT-120 Wide 8 Octave Orchestral Digital Tuner. Tuning is the process of adjusting the pitch of one or many tones from musical instruments to establish typical intervals between these tones. Tuning is usually based on a fixed reference, such as A = 440 Hz.

  7. Drop D tuning - Wikipedia

    en.wikipedia.org/wiki/Drop_D_tuning

    Drop D tuning is the most basic type of "drop 1" tuning, where the 6th string is tuned down a whole step (a tone). A large number of other "drop 1" tunings can be obtained simply by tuning a guitar to drop D tuning and then tuning all strings down some fixed amount. Examples are Drop D ♭, Drop C, Drop B, Drop B ♭, and Drop A tunings. All of ...

  8. 12 equal temperament - Wikipedia

    en.wikipedia.org/wiki/12_equal_temperament

    12-tone equal temperament chromatic scale on C, one full octave ascending, notated only with sharps. Play ascending and descending ⓘ. 12 equal temperament (12-ET) [a] is the musical system that divides the octave into 12 parts, all of which are equally tempered (equally spaced) on a logarithmic scale, with a ratio equal to the 12th root of 2 (≈ 1.05946).

  9. Pythagorean tuning - Wikipedia

    en.wikipedia.org/wiki/Pythagorean_tuning

    Pythagorean tuning is a system of musical tuning in which the frequency ratios of all intervals are determined by choosing a sequence of fifths [2] which are "pure" or perfect, with ratio :. This is chosen because it is the next harmonic of a vibrating string, after the octave (which is the ratio 2 : 1 {\displaystyle 2:1} ), and hence is the ...