Flexagons Inside Out has 2 ratings and 2 reviews. Charles said: Flexagons are hinged polygons made of paper or some other easily bent substance that disp. Abstract: This article presents 3 puzzles which turn things inside out: the cube puzzle, turning a paper strip inside out, and hexaflexagons. Readers who wish to . Buy Flexagons Inside Out by Les Pook (ISBN: ) from Amazon’s Book Store. Everyday low prices and free delivery on eligible orders.

Author: Malagar Gardashakar
Country: Uzbekistan
Language: English (Spanish)
Genre: Science
Published (Last): 7 May 2012
Pages: 36
PDF File Size: 14.28 Mb
ePub File Size: 6.63 Mb
ISBN: 574-9-56990-134-7
Downloads: 70648
Price: Free* [*Free Regsitration Required]
Uploader: Arashirr

My library Help Advanced Book Search. Photos 7 and 8 show the process of everting the hexaflexagon to show the formerly hidden red triangles.

Please try again later. Do this for each of the 10 triangles of the tri-hexaflexagon. Explore the Home Gift Guide. I did not try to construct all of the flexagons, which would have taken weeks, but those that I did build were really cool. Faces 1, 2, and 3 are easier to find while faces 4, 5, and 6 are more difficult to find. Please improve this article by removing excessive or inappropriate external links, and converting useful links where appropriate into footnote references.

European Journal of Combinatorics.

Amazon Drive Cloud storage from Amazon. Cut around the pattern on the outline. Figures show the final folding of the spiral to make a hexagon; in 5, two red faces have been hidden by a valley fold, and in 6, two red faces on the bottom side have been hidden by a mountain fold. Starmont Reader’s Guide The numbered patterns are geared towards classroom use. Tuckerman worked out a topological method, called the Tuckerman traverse, for revealing all the faces of a flexagon. Make a Hexa-hexaflexagon —it has six faces!


No trivia or quizzes yet. Retrieved January 13, Flexagons appeals to all readers interested in puzzles and recreational mathematics. Flexagons are usually square or rectangular tetraflexagons or hexagonal hexaflexagons. No previous knowledge of mathematics or geometry is necessary, although if you are unaccustomed to mathematical notation, the instructions may be a bit difficult at first.

Lists with This Book. Account Options Sign in. Early history of flexagons. This book is not yet featured on Listopia.

Flexagons Inside Out

Think about the project. Return to Book Page. Trivia Flxagons Flexagons Inside Out. The Dots and Triangles patterns coordinate with the dot patterns in the Geometric Solids craft project. It’s named after Bryant Tuckerman, one of the first to investigate the properties of hexaflexagons.

In its flat state, the pentaflexagon looks much like the Chrysler logo: The cycle proceeds as follows:. Flexagon equivalence is an equivalence relation. Amazon Inspire Digital Educational Resources.

The pentaflexagon is one of an infinite sequence of flexagons based on dividing a regular n -gon into n isosceles triangles. This article’s use of external links may not follow Wikipedia’s policies or guidelines. This book contains numerous diagrams that the reader can photocopy and use flexagona construct a variety of fascinating flexagons. Shopbop Designer Fashion Brands.


Flexagons Inside Out by Leslie Philip Pook

His new American paper would not fit in his English binder so he cut off inxide ends of the paper and began folding them into different shapes.

An attractive feature of the book is a collection of nets, with assembly instructions, for a wide range of paper models of flexagons.

These are printed full size and laid out so they can be photocopied. The technical details would require a mathematical background but the models can be made and used by anyone.