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  2. E-flat major - Wikipedia

    en.wikipedia.org/wiki/E-flat_major

    E-flat major was the second-flattest key Mozart used in his music. For him, E-flat major was associated with Freemasonry; "E-flat evoked stateliness and an almost religious character." [4] Edward Elgar wrote his Variation IX "Nimrod" from the Enigma Variations in E-flat major. Its strong, yet vulnerable character has led the piece to become a ...

  3. Equation of the center - Wikipedia

    en.wikipedia.org/wiki/Equation_of_the_center

    Series-expanded equation of the center as a function of mean anomaly for various eccentricities, with the equation of the center truncated at e 7 for all curves. Note that the truncated equation fails at high eccentricity and produces an oscillating curve. But this is because the coefficients of the Fourier series are inaccurate due to ...

  4. Cosmic distance ladder - Wikipedia

    en.wikipedia.org/wiki/Cosmic_distance_ladder

    The cosmic distance ladder (also known as the extragalactic distance scale) is the succession of methods by which astronomers determine the distances to celestial objects. A direct distance measurement of an astronomical object is possible only for those objects that are "close enough" (within about a thousand parsecs or 3^16 km) to Earth.

  5. AOL Video - Serving the best video content from AOL and ...

    www.aol.com/video/view/how-to-use-coordinates-to...

    The AOL.com video experience serves up the best video content from AOL and around the web, curating informative and entertaining snackable videos.

  6. Aeolian mode - Wikipedia

    en.wikipedia.org/wiki/Aeolian_mode

    The Aeolian mode is the sixth mode of the major scale, that is, it is formed by starting on the sixth degree of the major scale. For example, if the Aeolian mode is used in its all-white-note pitch based on A, this would be an A-minor triad, which would be the submediant in the relative major key of C major .

  7. Eccentricity (mathematics) - Wikipedia

    en.wikipedia.org/wiki/Eccentricity_(mathematics)

    The linear eccentricity of an ellipse or hyperbola, denoted c (or sometimes f or e), is the distance between its center and either of its two foci. The eccentricity can be defined as the ratio of the linear eccentricity to the semimajor axis a : that is, e = c a {\displaystyle e={\frac {c}{a}}} (lacking a center, the linear eccentricity for ...

  8. E-flat minor - Wikipedia

    en.wikipedia.org/wiki/E-flat_minor

    E-flat minor is a minor scale based on E ♭, consisting of the pitches E ♭, F, G ♭, A ♭, B ♭, C ♭, and D ♭. Its key signature consists of six flats . Its relative key is G-flat major (or enharmonically F-sharp major ) and its parallel key is E-flat major .

  9. Epicentral distance - Wikipedia

    en.wikipedia.org/wiki/Epicentral_distance

    When measuring the epicentral distance of an earthquake with a small epicentral distance, first measure the reading of the initial motion of P wave, and then confirm the arrival of S wave. [ Notes 3 ] The value of the epicenter distance Δ is found on the travel timetable according to the arrival time difference between the P wave and S wave.