As a public health precaution due to COVID-19, all Smithsonian museums and the National Zoo are temporarily closed. We are not announcing a reopening date at this time and will provide updates on our website and social media.

Geometric Model by A. Harry Wheeler, Parallelogram Transformable into Triangle, Plane Dissection

Geometric Model by A. Harry Wheeler, Parallelogram Transformable into Triangle, Plane Dissection

<< >>
Usage conditions apply
Downloads
Description
The four pieces of this hinged dissection can be arranged as a parallelogram or a triangle. The plastic that covers the pieces has been chosen so that a parallelogram appears inscribed in both forms of the model.
This is Wheeler's transfomation 4Y. See 1979.3002.43 (folder 2) and 1979.3002.43 (folder1).
The drawing in folder 1 is dated January 20, 1932. It is entitled "Parallelogram into a Triangle."
An annotation with the drawing attributes it to Taylor. Messanger of Mathematics, Aug 1905-April 1906, pp. 96-97. See also 1979.3002.50.
Location
Currently not on view
Object Name
geometric model
date made
ca 1932
ca 1932 01 20
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)
green (overall color)
brown (overall color)
hinged (overall production method/technique)
Measurements
average spatial: 1.8 cm x 21.5 cm x 12.8 cm; 23/32 in x 8 15/32 in x 5 1/32 in
ID Number
MA.304723.783
accession number
304723
catalog number
304723.783
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.

Note: Comment submission on our collection pages is temporarily unavailable. Please check back soon!

If you have a question or require a personal response, please visit our FAQ or contact page.