Model of Cubic Cones with a Cuspidal Edge by Richard P. Baker, Baker #81 (a Ruled Surface)
Model of Cubic Cones with a Cuspidal Edge by Richard P. Baker, Baker #81 (a Ruled Surface)
Previous
Next
Usage conditions apply
- 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 top edge of the wooden frame of this model reads: No. 81 (/) CUBIC CONE: (/) CUSPIDAL EDGE.
- 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 sides, base, and top of the model.
- A version of the model sold for $4.50, but it may have been considerably smaller.
- 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
- Object Name
- geometric model
- date made
- ca 1900-1935
- maker
- Baker, Richard P.
- Physical Description
- thread (overall material)
- wood (overall material)
- metal (overall material)
- black (overall color)
- yellow (overall color)
- screwed and threaded (overall production method/technique)
- Measurements
- average spatial: 41.8 cm x 53.7 cm x 42.3 cm; 16 15/32 in x 21 5/32 in x 16 21/32 in
- ID Number
- MA.211257.007
- accession number
- 211257
- catalog number
- 211257.007
- Credit Line
- Gift of Frances E. Baker
- subject
- Mathematics
- See more items in
- Medicine and Science: Mathematics
- Science & Mathematics
- Data Source
- National Museum of American History
Nominate this object for photography.
Our collection database is a work in progress. We may update this record based on further research and review. Learn more about our approach to sharing our collection online.
If you would like to know how you can use content on this page, see the Smithsonian's Terms of Use. If you need to request an image for publication or other use, please visit Rights and Reproductions.
Note: Comment submission is temporarily unavailable while we make improvements to the site. We apologize for the interruption. If you have a question relating to the museum's collections, please first check our Collections FAQ. If you require a personal response, please use our Contact page.
