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The harmonic series (also overtone series) is the sequence of harmonics, musical tones, or pure tones whose frequency is an integer multiple of a fundamental frequency. Pitched musical instruments are often based on an acoustic resonator such as a string or a column of air, which oscillates at numerous modes simultaneously.
A phonon is a collective excitation in a periodic, elastic arrangement of atoms or molecules in condensed matter, specifically in solids and some liquids.A type of quasiparticle in physics, [1] a phonon is an excited state in the quantum mechanical quantization of the modes of vibrations for elastic structures of interacting particles.
The term chiral / ˈ k aɪ r əl / describes ... Archived from the original on 2022-01-22. in support of the series on U.S. military standards relating to ...
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Freedom Jazz Dance: The Bootleg Series, Vol. 5 is a 3-CD box set by the Miles Davis Quintet compiling studio recordings by jazz trumpeter Miles Davis recorded between 1966 and 1968. [8] The album contains remastered versions, alternate takes, and conversations among the musicians.
Over a 45-years span — between 1975 and 2020 — improvements in cancer screenings and prevention strategies have reduced deaths from five common cancers more than any advances in treatments ...
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When the temperature is lower than the Bloch–Grüneisen temperature, the most energetic thermal phonons have a typical momentum of k B T/v s which is smaller than ħk F, the momentum of the conducting electrons at the Fermi surface. This means that the electrons will only scatter in small angles when they absorb or emit a phonon.