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