Object Details
- Baker, Richard P.
- Description
- A twisted polygon is a closed broken line whose sides do not all lie in the same plane. This model of such a figure is made from painted 1/8 inch steel wire. The range is over a quarter of a circle. According to Baker’s catalog description, the model includes “osculating and normal planes and polar lines in penultimate position.” The penultimate position is the one next to the rightmost in the image, the osculating plane is represented by two short wires, and the normal plane at this point is indicated by lower wires approaching the pole at the back.
- A paper tag reads: No. 131 (/) Twisted polygon: diff. geom.
- The model sold for $2.50.
- References:
- R. P. Baker, Mathematical Models, Iowa City, Iowa, 1931, p. 11.
- Richard P. Baker Papers, University Archives, University of Iowa, Iowa City, Iowa.
- Location
- Currently not on view
- Credit Line
- Gift of Frances E. Baker
- ca 1906-1935
- ID Number
- MA.211257.019
- accession number
- 211257
- catalog number
- 211257.019
- Object Name
- geometric model
- Physical Description
- metal (overall material)
- white (overall color)
- soldered (overall production method/technique)
- Measurements
- average spatial: 6.2 cm x 21.2 cm x 15 cm; 2 7/16 in x 8 11/32 in x 5 29/32 in
- See more items in
- Medicine and Science: Mathematics
- Science & Mathematics
- National Museum of American History
- Subject
- Mathematics
- Record ID
- nmah_1080268
- GUID (Link to Original Record)
- https://n2t.net/ark:/65665/ng49ca746a9-1f68-704b-e053-15f76fa0b4fa
