Object Details
- Description
- This is the eighth in a series of models illustrating the volume of solids designed by William Wallace Ross, a school superintendent and mathematics teacher in Fremont, Ohio.
- The unpainted wooden model is in the shape of a cylinder. Inscribed on the top of the cylinder is a square, with its diagonals indicated. An incomplete paper tag reads: C [. . .] R 3x6 [. . .] (/) When the [. . .] of the prism become infinite, it becomes a cylinder, the perimeter of a prism with an infinite number of sides being termed the circumference.
- In the series of plane figures, Ross compared the area of a circle to the area of circumscribing polygons of increasing numbers of sides. To demonstrate the volume of a cylinder, he compared it to various regular prisms inscribed in it. This model suggests how a square pyramid might be inscribed in a cylinder.
- Compare 1985.0112.208 and 1985.0112.210. For further information about Ross models, including references, see 1985.0112.190.
- Location
- Currently not on view
- Data Source
- National Museum of American History
- maker
- Ross, W. W.
- date made
- ca 1895
- Credit Line
- Gift of Wesleyan University
- Physical Description
- wood (overall material)
- Measurements
- overall: 15 cm x 7.3 cm x 7.3 cm; 5 29/32 in x 2 7/8 in x 2 7/8 in
- Object Name
- geometric model
