| 1. | A spherical surface like that of the Earth provides a simple example.
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| 2. | The same rounded shapes espouse the spherical surfaces formed by the horses heads.
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| 3. | In 2D it's a circle; in 3D, a spherical surface; and so on.
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| 4. | :: : : A map is a flat representation of a spherical surface.
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| 5. | ;Wheels : Abrasive cups or wheels are used to superfinish flat and spherical surfaces.
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| 6. | Lenses in which closer-to-ideal, non-spherical surfaces are used are called " aspheric " lenses.
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| 7. | Made of curved aluminum sheets, it was lap jointed to create a continuous spherical surface.
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| 8. | The arrival of the detonation wave at the spherical surface instantly and simultaneously fires the explosive liner.
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| 9. | The surface element spanning from to and to on a spherical surface at ( constant ) radius is
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| 10. | However, spherical surfaces also give rise to lens aberrations and can lead to complicated lens designs of great size.
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