The museum is open Fridays through Tuesdays 11 a.m. to 4 p.m. Free timed-entry passes are required. Review our latest visitor safety guidelines.

Geometric Model by A. Harry Wheeler, Square Transformable into an Equilateral Triangle, Plane Dissection

Geometric Model by A. Harry Wheeler, Square Transformable into an Equilateral Triangle, Plane Dissection

<< >>
Usage conditions apply
Downloads
Description
These four hinged pieces may be arranged a an equilateral triangle or a square.
Compare MA.304723.764, MA.304723.819, MA.304723.766, and MA.304723.823.
This is similar but not identical to Wheeler's Model 4ST. Two drawings for that puzzle, both dated January 17, 1932 and April 26, 1932, are in 1979.3002.43, folder 1. The drawings refers to the Mathematical Gazette - no volume or page is given. A drawing in 1979.3002.53 dated January 5, 193? refers to this model as 4C.
References:
Fredrickson, Greg N., Dissections Plane and Fancy, pp. 136-137 attributes publication of this dissection to Dudeney (1902).
H. E. Dudeney, The Canterbury Puzzles, pp. 49-50, 178-180. Dudeney specifically points out on p.180 that the puzzle may be made with the pieces hinged. The first edition of the book appeared in 1907, the second in 1919.
Location
Currently not on view
Object Name
geometric model
date made
ca 1932.
ca 1932
ca 1932 04 26
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)
turquoise (overall color)
red (overall color)
yellow (overall color)
black (overall color)
cut, glued and hinged (overall production method/technique)
Measurements
average spatial: 1.1 cm x 13.2 cm x 20.2 cm; 7/16 in x 5 3/16 in x 7 15/16 in
ID Number
MA.304723.766
accession number
304723
catalog number
304723.766
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
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.

Comments

Add a comment about this object