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

Set of Geometric Models by A. Jullien, Relief 25

This media is in the public domain (free of copyright restrictions). You can copy, modify, and distribute this work without contacting the Smithsonian. For more information, visit the Smithsonian's Open Access page.

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more.

View manifest View in Mirador Viewer

Set of Geometric Models by A. Jullien, Relief 25
Set of Geometric Models by A. Jullien, Relief 25, Back View

Object Details

maker

Jullien, A.

Description

The given lines are the black strings: ab’ and dc’. They intersect at (m, m’). Segment ad on the horizontal plane creates a triangle with the given lines as sides. Point n on the horizontal plane is perpendicular to ad through point (m, 0). By rotating the triangle about line ab onto the horizontal plane, point (m, m’) maps to point M₂. Angle aM₂d is the angle between the two given lines.

For more details, see COLL.1986.0885 and 1986.0885.01.01.

Location

Currently not on view

date made

ca 1880

ID Number

1986.0885.01.25

catalog number

1986.0885.01.25

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

Data Source

National Museum of American History

Subject

descriptive geometry

Metadata Usage

CC0

Link to Original Record

https://n2t.net/ark:/65665/ng49ca746b4-9d7b-704b-e053-15f76fa0b4fa

Record ID

nmah_1802212