Model for Descriptive Geometry by A. Jullien - Angle between a Line and a Plane

Object Details

Jullien, A.

Description

The given plane is CPC’ and the line goes from b on the horizontal plane to a’ on the vertical plane. The holes can be seen in the image, but the black string is missing. Point (m, m’) is any point on the line. Construct the line from (m, m’) to point d on the horizontal plane that is perpendicular to the plane. This line is the wire protruding out of the horizontal plane. Through the use of several projections seen in the relief, point M₂ on the horizontal plane is the image of the rotation of point (m, m’). Then angle fM₂d on the horizontal plane is the angle between the given plane and line.

For more details, see COLL.1986.0885 and 1986.0885.01.01.

Location

Currently not on view

ca 1880

ID Number

1986.0885.01.27

catalog number

1986.0885.01.27

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_1802214

Metadata Usage (text)

CC0

GUID (Link to Original Record)

https://n2t.net/ark:/65665/ng49ca746b2-d45c-704b-e053-15f76fa0b4fa