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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. Flail chest - Wikipedia

    en.wikipedia.org/wiki/Flail_chest

    The concern about "mediastinal flutter" (the shift of the mediastinum with paradoxical diaphragm movement) does not appear to be merited. [8] Pulmonary contusions are commonly associated with flail chest and that can lead to respiratory failure. This is due to the paradoxical motions of the chest wall from the fragments interrupting normal ...

  4. Colic flexures - Wikipedia

    en.wikipedia.org/wiki/Colic_flexures

    The left colic flexure or splenic flexure (as it is close to the spleen) is the sharp bend between the transverse colon and the descending colon.The splenic flexure receives dual blood supply from the terminal branches of the superior mesenteric artery and the inferior mesenteric artery.

  5. Navel - Wikipedia

    en.wikipedia.org/wiki/Navel

    Outies are sometimes mistaken for umbilical hernias; however, they are a completely different shape with no health concern, unlike an umbilical hernia.The navel (specifically abdominal wall) would be considered an umbilical hernia if the protrusion were 5 centimeters or more.

  6. 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

  7. Pterostigma - Wikipedia

    en.wikipedia.org/wiki/Pterostigma

    The pterostigma, a heavier section of the wing than nearby sections, assists in gliding. Without the pterostigmata, self-exciting vibrations known as flutter would set in on the wing above a certain critical speed, making gliding impossible. Tests show that with the pterostigmata, the critical gliding speed is increased 10–25% on one species ...

  8. Hiccup - Wikipedia

    en.wikipedia.org/wiki/Hiccup

    A hiccup (scientific name singultus, from Latin for "sob, hiccup"; also spelled hiccough) is an involuntary contraction (myoclonic jerk) of the diaphragm that may repeat several times per minute.

  9. List of acupuncture points - Wikipedia

    en.wikipedia.org/wiki/List_of_acupuncture_points

    The only [verification needed] ambiguity with this unique systemized method is on the urinary bladder meridian, where the outer line of 14 points found on the back near the spine are inserted in one of two ways; following the last point of the inner line along the spine (會陽) and resuming with the point found in the crease of the buttocks ...