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Helicity is a pseudo-scalar quantity: it changes sign under change from a right-handed to a left-handed frame of reference; it can be considered as a measure of the handedness (or chirality) of the flow. Helicity is one of the four known integral invariants of the Euler equations; the other three are energy, momentum and angular momentum.
Treble Clef Key Signature Music Flash Cards for Major and Minor Keys. Print double sided and cut along the major lines. If impossible, print the first page and fold to conceal the answers.
The treble clef is the most commonly encountered clef in modern notation. Alto clef: C clef (Alto and Tenor clefs) The center of a C clef points to the line representing middle C. The first illustration here is centered on the third line on the staff, making that line middle C. When placed there, the clef is called alto clef, mainly used for ...
The following other wikis use this file: Usage on bg.wikipedia.org Тоналност; Usage on fa.wikipedia.org سرکلید; Usage on ja.wikipedia.org
In fluid dynamics, head is a concept that relates the energy in an incompressible fluid to the height of an equivalent static column of that fluid. From Bernoulli's principle, the total energy at a given point in a fluid is the kinetic energy associated with the speed of flow of the fluid, plus energy from static pressure in the fluid, plus energy from the height of the fluid relative to an ...
In mathematics, the signature (v, p, r) [clarification needed] of a metric tensor g (or equivalently, a real quadratic form thought of as a real symmetric bilinear form on a finite-dimensional vector space) is the number (counted with multiplicity) of positive, negative and zero eigenvalues of the real symmetric matrix g ab of the metric tensor with respect to a basis.
In Western musical notation, a key signature is a set of sharp (♯), flat (♭), or rarely, natural (♮) symbols placed on the staff at the beginning of a section of music. . The initial key signature in a piece is placed immediately after the clef at the beginning of the first l
In the key of C major, these would be: D minor, E minor, F major, G major, A minor, and C minor. Despite being three sharps or flats away from the original key in the circle of fifths, parallel keys are also considered as closely related keys as the tonal center is the same, and this makes this key have an affinity with the original key.