Model for Descriptive Geometry by A. Jullien - Angle between Two Planes

National Museum of American History
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Object Details

Jullien, A.
Description
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 tM2s.
For more details, see COLL.1986.0885 and 1986.0885.01.01.
Location
Currently not on view
ca 1880
ID Number
1986.0885.01.28
catalog number
1986.0885.01.28
accession number
1986.0885
Object Name
geometric model
Physical Description
paper (overall material)
metal (overall material)
Measurements
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
place made
France: Île-de-France, Paris
See more items in
Medicine and Science: Mathematics
Science & Mathematics
Jullien Geometric Models
National Museum of American History
subject
descriptive geometry
Record ID
nmah_1802215
Metadata Usage (text)
CC0
GUID (Link to Original Record)
http://n2t.net/ark:/65665/ng49ca746b2-d417-704b-e053-15f76fa0b4fa
Set of Geometric Models by A. Jullien, Relief 28
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