Geometric Model by A. Harry Wheeler, Line Perpendicular to Two Lines
date: label: date made
content: ca 1945
name: label: maker
content: Wheeler, Albert Harry
notes: label: Description
content: 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.
label: Description
content: Compare MA.304723.650,1979.0102.183,1979.0102.265,1979.0102.266, and 1979.0102.267.
label: Description
content: For a related pattern, see 1979.3002.109.
label: Location
content: Currently not on view
place: label: place made
content: United States: Massachusetts, Worcester
topic: label: Subject
content: Mathematics
setName: label: See more items in
content: Medicine and Science: Mathematics
creditLine: label: Credit Line
content: Gift of Louise D. Campbell
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1979.0102.265
label: catalog number
content: 1979.0102.265
label: accession number
content: 1979.0102
objectType: label: Object Name
content: Geometric Model
physicalDescription: label: Physical Description
content: paper (overall material)
label: Measurements
content: overall: 12 cm x 11.5 cm x 7.1 cm; 4 23/32 in x 4 17/32 in x 2 25/32 in