Geometric Model by A. Harry Wheeler, Line Perpendicular to Two Lines

Description:

To show relationships among planes and angles, A. H. Wheeler designed a series of what he called platform models. All of these had a rectangular platform, with other segments (often other rectangles) secured to it. This tan paper platform model shows the intersection of four planes. One serves as the platform and the other three intersect in a line perpendicular to the platform. The third plane (which is represented by a triangle between two other triangles) is movable. The line at the base of this central triangle is perpendicular to the line joining the two upper triangles and, when moved to intersect the line drawn on the base, perpendicular to that line. Hence a line perpendicular to two llines.

Compare MA.304723.650,1979.0102.183,1979.0102.265,1979.0102.266, and 1979.0102.267.

For a related pattern, see 1979.3002.109.

Date Made: ca 1945

Maker: Wheeler, Albert Harry

Location: Currently not on view

Place Made: United States: Massachusetts, Worcester

Subject: Mathematics

Subject:

See more items in: Medicine and Science: Mathematics

Exhibition:

Exhibition Location:

Credit Line: Gift of Louise D. Campbell

Data Source: National Museum of American History

Id Number: 1979.0102.267Catalog Number: 1979.0102.267Accession Number: 1979.0102

Object Name: Geometric Model

Physical Description: paper (overall material)Measurements: overall: 12 cm x 11.6 cm x 7.1 cm; 4 23/32 in x 4 9/16 in x 2 25/32 in

Guid: http://n2t.net/ark:/65665/ng49ca746b4-bee5-704b-e053-15f76fa0b4fa

Record Id: nmah_904991

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