File:MITmodel1.JPG
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Generalized helicoid of constant positive curvature. A helicoid is generated by taking a line and rotating it about the z-axis, moving it up along the z-axis as it rotates. We can create an \emph{generalized helicoid} by taking any plane curve in the xy-plane rotating it about the z-axis while simultaneously moving it up the z-axis. In this way we create a surface that can slide over itself when subjected to a screw-like motion. Originally, this model was sold with a metal slider to demonstrate this fact.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 13:11, 27 June 2008 | | 1,536×2,048 (262 KB) | Angela (Talk | contribs) | (Generalized helicoid of constant positive curvature. A helicoid is generated by taking a line and rotating it about the z-axis, moving it up along the z-axis as it rotates. We can create an \emph{generalized helicoid} by taking any plane curve in the xy-p) |
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