sphere

Table of Contents

Introduction References & Edit History Related Topics

Images

The normal, or perpendicular, at each point of a surface defines the corresponding tangent plane, and vice versa.

sphere with circumscribing cylinder

Discover

Computer mapping, woman at early 1990s computer

Timeline of the 1990s

World Data Locator Map: Australia

Is Australia an Island?

Mona Lisa, oil on wood panel by Leonardo da Vinci, c. 1503-06; in the Louvre, Paris, France. 77 x 53 cm.

Why Is the Mona Lisa So Famous?

Space race (1957-1969) infographic between United States (U.S.) and Russia. America, Soviet Union, U.S.S.R., space exploration

Timeline of the Space Race, 1957–69

Germans from East and West stand on the Berlin Wall in front of the Brandenburg Gate in the November 10, 1989, photo, one day after the wall opened.

Timeline of the 1980s

Baseball laying in the grass. Homepage blog 2010, arts and entertainment, history and society, sports and games athletics

10 Greatest Baseball Players of All Time

New Zealand. Political/Physical map. Includes locator.

Where Is “Old Zealand”?

sphere: Related Content

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Photos

The normal, or perpendicular, at each point of a surface defines the corresponding tangent plane, and vice versa.

sphere with circumscribing cylinder

See All Images →

Topics

rhumb line Poincaré conjecture Ewald’s sphere spherical triangle pseudosphere geodesic ellipsoid cone paraboloid hyperboloid cylinder

Key People

Archimedes

Archimedes

Greek mathematician

Menelaus of Alexandria

Greek mathematician

Quiz

Equations written on blackboard

Numbers and Mathematics