Model of a Cubic Cone Showing Only a Single Sheet by Richard P. Baker, Baker #82 (a Ruled Surface)

Object Details

Baker, Richard P.

Description

This string model was constructed by Richard P. Baker, possibly before 1905 when he joined the mathematics faculty at the University of Iowa. Baker believed that models were essential for the teaching of many parts of mathematics and physics, and over one hundred of his models are in the museum collections.

The typed part of a paper label on the bottom of the wooden base of this model reads: No. 82 (/) cubic cone: SINGLE SHEET (/) only.

Baker’s string models represent a special type of geometric surface called a ruled surface. A ruled surface, sometimes called a scroll, is one that is swept out by a moving line. This model shows the ruled surface swept out by the yellow threads connecting the curved vertical wooden sides of the model and by the threads joining the curved horizontal piece of wood on the top of the model to the curved piece at the front. All the threads of this model pass through a point in the center of the model which intersects a wire rising from the base.

The model sold for $4.50.

References:

R. P. Baker, A List of Mathematical Models, [1905], p. 14.

R. P. Baker, Mathematical Models, Iowa City, Iowa, 1931, p. 7.

R. P. Baker Papers, University of Iowa, Iowa City, Iowa.

Location

Currently not on view

Credit Line

Gift of Frances E. Baker

ca 1900-1935

ID Number

MA.211257.008

accession number

211257

catalog number

211257.008

Object Name

geometric model

Physical Description

thread (overall material)

wood (overall material)

metal (overall material)

yellow (overall color)

black (overall color)

screwed and threaded (overall production method/technique)

Measurements

average spatial: 20.4 cm x 18.8 cm x 18.4 cm; 8 1/32 in x 7 13/32 in x 7 1/4 in

See more items in

Medicine and Science: Mathematics

Science & Mathematics

National Museum of American History

Subject

Mathematics

Record ID

nmah_1079778

Metadata Usage (text)

CC0

GUID (Link to Original Record)

https://n2t.net/ark:/65665/ng49ca746a9-4772-704b-e053-15f76fa0b4fa