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Title: Model of a surface whose horizontal sections exhibit double [Go to resource]
Description: Model of a surface whose horizontal sections exhibit double points; the points are a set of cusps lying on a parabola in a vertical plane with its axis horizontal License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: surface model (plaster) Source: Science Museum Identifier: 1936-288/4 Go to resource More Like this...
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