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#kinematics — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #kinematics, aggregated by home.social.

  1. In the past years our team at #HUBerlin and #ChariteBerlin was able to recruit 451 adults (231 females) aged 18-64 years, with and without low-back pain.

    Besides #kinematics, we assessed muscle strength, activation (#EMG) and morphology (#MRI) of the trunk.

    Today we finally submitted our second manuscript and it is my pleasure to publicly share this unique dataset and the #rstats code used for analyses (doi.org/10.5281/zenodo.17950007).

    We sincerely hope that our commitment to #OpenScience and #FairData allows researchers worldwide to use this data and foster global research initiatives, collaborations and comparative studies on low-back pain, facilitating cross-cohort validation and a broader applicability of findings.

  2. Unique 3D Printer Has a Print Head With a Twist - If you’re used to thinking about 3D printing in Cartesian terms, prepare your brai... - hackaday.com/2024/12/02/unique #3dprinterhacks #kinematics #corexy #slicer #polar #theta

  3. Forgive the recent apparent obsession (I’d call it a fascination) with the #cycloid but I’ve just discovered something I’d not heard of before. It is also called a #TautochroneCurve or #Isochrone curve, which means that a particle starting from any location on the curve will get to the #MinimumPoint at precisely the same time as a particle starting at any other point.

    #Dynamics #Kinematics #Mathematics #AppliedMathematics #Mechanics #ClassicalMecanics #WxMaxima #FreeSoftware #MyWork #CCBYSA

  4. Imagine a circular wheel rolling, without skidding, on a flat, horizontal surface. The #locus of any given point on its #circumference is called a #cycloid. It is a #periodic #curve with #period over the #circle's circumference and has #cusps whenever the point is in contact with the surface (the two sides of the curve are tangentially vertical at that point).

    #Mathematics #Geometry #Maths #AppliedMathematics #Mechanics #Kinematics #Dynamics #Physics #MyWork #CCBYSA #WxMaxima

  5. I wonder if a #SilentSync #belt and #sprocket setup would improve the #print quality of a #3DPrinter. 16mm belts would probably reduce #ghosting / #ringing, but would the offset herringbone tooth pattern reduce some, if not all of the XY wavey artifacts? Maybe the #VoronDesign, #HevORT, or #VzBoT folks would like to investigate?
    silentsync.com/silentsync-spro
    #3DPrinting #3DPrint #kinematics #hardware #belts #TimingBelt #sprockets #Voron

  6. I wonder if a #SilentSync #belt and #sprocket setup would improve the #print quality of a #3DPrinter. 16mm belts would probably reduce #ghosting / #ringing, but would the offset herringbone tooth pattern reduce some, if not all of the XY wavey artifacts? Maybe the #VoronDesign or #HevORT folks would like to investigate?

    silentsync.com/silentsync-spro

    #3DPrinting #3DPrint #kinematics #hardware #belts #TimingBelt #sprockets #Voron

  7. Teaching physics? Labs and resources! 🙂

    Friction lab
    Mechanical equilibrium lab

    3 stage rockets – human powered in the gym or hall

    #Gravity and #tides: Why Is There a Tidal Bulge Opposite the Moon?

    Inertial mass and gravitational mass lab

    Reaction time lab
    CPO #Kinematics labs

    Measuring data with smartphone apps

    #Magnetism: Lenz’s law demo & more!

    #Catapult and #Trebuchet build project
    #Hovercraft build project
    #Mousetrap racers

    kaiserscience.wordpress.com/ph

    @edutooters
    #science #physics #physicsteachers #highschoolscience

  8. CW: Physics

    TIL the effective rotational inertia of an axle which has a vehicle attached to it is mR^2 (considering the wheel and axle are negligible compared to the vehicle), the same as that of a point mass around an axis outside itself.

    #physics #rotational #inertia #kinematics