Recent content by spec00

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    Surface area of a sphere using integrals

    Wow! Now, that's absolutely clear for me. Thanks for the huge enlightment..!
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    Surface area of a sphere using integrals

    Thanks for the fast reply, tiny-tim! Well, that's true, but I've seen a proof for the volume of a sphere using slices of it with infinitesimal height. Since the slices are not cylinders, but little cones, that deduction wouldn't get us in the wrong place too...
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    Surface area of a sphere using integrals

    Hello dear colleagues! Yesterday i was trying to proof the surface area of a sphere formula, then i got some problems. I know that something is seriously wrong in this concept, but i can't tell what exactly is wrong. Could you guys help me please? I just thougt about a hollow sphere, then we...
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