Flattening Earth
http://www.classzone.com/books/earth_science/terc/content/investigations/es0301/es0301page03.cfm?chapter_no=investigatio

Jennifer Loomis, Exploring Earth


This quick loading Flash animation shows what happens when the surface of a globe is pulled off and placed on a flat surface. Note the gaps that are produced when the scene changes from a round, three dimensional surface to a flat, two dimensional surface. To see how these gaps are reconciled to produce a seamless map, see the Wiley animation on projections. Show this video as an introduction. The video can be paused and rewound to stress important points.

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This resource is referenced here:Keywords: map projections, cartography