The
diagram that has appeared in the preceding article:
Some continuation of "leaves and variations" -5"- is also considered as a diagram of the following spatial object:
A development of a [flat] slant quadrilateral prism with triangulation (diagram in the right side) will be 'wrenched' into a spatial structure of wrinkled quadrilateral prism (picture in the left side: from its side and top as folded ).
For comparison to the above structure: a picture and a diagram of a helical twisted structure on a [flat] slant quadrilateral prism.
>> Click each image to see in larger scales <<
Material: A sheet of A4 sized Japanese paper with a piece of adhesive tape (to stick the folded structure in circular together) for each structure.
Date: March 14-15, 2006
Photo date: March 16, 2006

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