Recent content by piquante

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    What is the derivation of the moment of inertia of a solid sphere?

    So here I just need help understanding a concept. I was reading this website's derivation of the moment of inertia of a solid sphere here: http://hyperphysics.phy-astr.gsu.edu/hbase/isph.html#sph3 For the life of me I can't see where the (1/2)y2 term comes from. I would understand y2 because...