Hoberman Actuator with Sphere https://www.physicsfunshop.com/search?keywords=hoberman This actuator mechanism creates kinetic art out of a Hoberman sphere, designed to smoothly expand and contract the isokinentic structure. The Hoberman sphere itself is a special assembly of foldable linkages consisting of rigid bars and simple hinges is kinematically over constrained- motion can only occur along the radial direction and the movement of any hinge creates motion in all the joints. The engineering
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When you spin a fully expanded Hoberman Sphere, it rotates slowly. But if you collapse it mid-spin, the rotation speeds up dramatically. First we need to know that momentum measures how difficult it is to stop a moving object and it depends on the object's mass and velocity: ▪︎ Linear momentum refers to straight line motion (a tennis ball is easier to stop than a bowling ball). ▪︎ Angular momentum applies to spinning objects and depends on mass and angular velocity (a coin flip is easier to stop
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⭐️🫁 BREATH of the WEEK: Hoberman Breath Bring your Hoberman sphere in front of your chest. Inhale slowly, expanding the Hoberman sphere to mimic your chest expanding with your deep breath. As you exhale slowly, make the Hoberman sphere smaller to mimic pushing the air from your lungs. Repeat this exercise a few times. Find all of our breaths for children and teens here: https://shop.kidsyogastories.com/collections/breathing or at the link in our profile. #kidsyogastories #breathingtechniques #b
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Hoberman Sphere: http://physicstoys.blogspot.com/p/physics-toy-store.html Isokinetic structure. This special assembly of fold-able linkages consisting of rigid bars and simple hinges is kinematically over constrained- motion can only occur along the radial direction and the movement of any hinge creates motion in all the joints. The engineering and physics behind deploy-able space structures! ➡️ Follow the link above for info on where to get this and other amazing items featured here on Physicsf
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