Model for Descriptive Geometry by A. Jullien - Angle between Two Planes
date: label: date made
content: ca 1880
name: label: maker
content: Jullien, A.
notes: label: Description
content: The given planes are APA’ and BQB’. The vertical and horizontal projections of the planes meet at the points d’ and c on the vertical and horizontal planes respectively, with line of intersection of the two planes cd’, depicted by the red sting. Point n is the foot of the perpendicular from the line to the horizontal plane. The red string that runs left to right indicates the plane perpendicular to line cd’ with segments on the given planes. By rotating this perpendicular plane down to the horizontal plane, the angle between the two given planes is the angle tM<sub>2</sub>s.
label: Description
content: For more details, see COLL.1986.0885 and 1986.0885.01.01.
label: Location
content: Currently not on view
place: label: place made
content: France: Île-de-France, Paris
topic: label: Subject
content: descriptive geometry
setName: label: See more items in
content: Medicine and Science: Mathematics
label: See more items in
content: Science & Mathematics
label: See more items in
content: Jullien Geometric Models
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1986.0885.01.28
label: catalog number
content: 1986.0885.01.28
label: accession number
content: 1986.0885
objectType: label: Object Name
content: geometric model
physicalDescription: label: Physical Description
content: paper (overall material)
label: Physical Description
content: metal (overall material)
label: Measurements
content: overall: 6.5 cm x 7.5 cm x 6.5 cm; 2 9/16 in x 2 15/16 in x 2 9/16 in