Geometric Model by A. Harry Wheeler, Square Transformable into Two Squares, Portion, Plane Dissection
Geometric Model by A. Harry Wheeler, Square Transformable into Two Squares, Portion, Plane Dissection
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- Description
- The four pieces of this hinged dissection may be arranged as a square or as a square ring with a square hole. With a square, it becomes Wheeler's model 5SA, and a partially hinged dissection.
- This is a demonstration of the Pythagorean Theorem. This is Wheeler's model 5SA. It follows a model of Henry Perigal. A drawing for this model, dated April 7, 1932, is in 1979.3002.43, folder 1. Perigal did not present this as a hinged dissection, Wheeler did. Greg N. Frederickson comments that in the 1980s, David Singmaster noted that the model was hingeable and constructed a hinged version.
- References:
- W. W. R. Ball, Mathematical Recreations and Essays, p. 88.
- Greg N. Ferguson, Hinged Dissections: Swinging & Twisting, Cambridge: Cambridge University Press, 2002, pp. 33-34.
- Location
- Currently not on view
- Object Name
- geometric model
- date made
- ca 1932
- ca 1932 04 07
- unspecified
- Wheeler, Albert Harry
- maker
- Wheeler, Albert Harry
- place made
- United States: Massachusetts, Worcester
- associated place
- United States: Massachusetts, Worcester
- Physical Description
- plastic (overall material)
- wood (overall material)
- metal (overall material)
- red (overall color)
- hinged (overall production method/technique)
- Measurements
- average spatial: 1.5 cm x 9 cm x 9 cm; 19/32 in x 3 17/32 in x 3 17/32 in
- ID Number
- MA.304723.774
- accession number
- 304723
- catalog number
- 304723.774
- Credit Line
- Gift of Helen M. Wheeler
- subject
- Mathematics
- See more items in
- Medicine and Science: Mathematics
- Science & Mathematics
- Data Source
- National Museum of American History
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