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  2. Spline (mechanical) - Wikipedia

    en.wikipedia.org/wiki/Spline_(mechanical)

    There are several types of splines: [2] Parallel key spline where the sides of the equally spaced grooves are parallel in both directions, radial and axial. Involute spline where the sides of the equally spaced grooves are involute, as with an involute gear, but not as tall. The curves increase strength by decreasing stress concentrations.

  3. 7 Shoulder-Strengthening Exercises for Better Posture and ...

    www.aol.com/7-shoulder-strengthening-exercises...

    For all these reasons, you want to turn to the shoulder-strengthening exercises below. How to use this list: Complete each exercise in the order listed below for the number of reps described. Do 2 ...

  4. 9 exercises to strengthen and tone your shoulders - AOL

    www.aol.com/news/9-exercises-strengthen-tone...

    These simple shoulder exercises for women will help you tone and strengthen the arms, without bulking up. Plus, improve posture and reduce your risk of injury. 9 exercises to strengthen and tone ...

  5. List of gear nomenclature - Wikipedia

    en.wikipedia.org/wiki/List_of_gear_nomenclature

    Form diameter is the diameter of a circle at which the trochoid (fillet curve) produced by the tooling intersects, or joins, the involute or specified profile. Although these terms are not preferred, it is also known as the true involute form diameter (TIF), start of involute diameter (SOI), or when undercut exists, as the undercut diameter.

  6. Involute gear - Wikipedia

    en.wikipedia.org/wiki/Involute_gear

    The involute gear profile, sometimes credited to Leonhard Euler, [1] was a fundamental advance in machine design, since unlike with other gear systems, the tooth profile of an involute gear depends only on the number of teeth on the gear, pressure angle, and pitch. That is, a gear's profile does not depend on the gear it mates with.

  7. 22 Exercises to Build Boulder Shoulders - AOL

    www.aol.com/22-exercises-build-boulder-shoulders...

    Use these exercises to develop shoulder strength and size. You can build boulder shoulders, starting here. hoozone - Getty Images. You Might Also Like. The Best Hair Growth Shampoos for Men to Buy ...

  8. Rounded shoulder posture - Wikipedia

    en.wikipedia.org/wiki/Rounded_shoulder_posture

    Rounded shoulder posture (RSP), also known as “mom posture”, [1] is a common postural problem in which the resting position of the shoulders leans forward from the body’s ideal alignment. [1] Patients usually feel slouched and hunched, [ 2 ] with the situation deteriorating if left untreated.

  9. Face pull (exercise) - Wikipedia

    en.wikipedia.org/wiki/Face_pull_(exercise)

    The face pull is a weight training exercise that primarily targets the musculature of the upper back and shoulders, namely the posterior deltoids, trapezius, rhomboids, Latissimus dorsi as well as the biceps. [1] The face pull is considered an important exercise for shoulder health and stability. [2]