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Bellhop
Very clever, Brian! You spread it out over ten pages so that you could get ten ...
kjdsfkjdshfkdshfvc
I know I'm getting old, but when I learned drafting, that pointy thing was ...
Using HexaFlexagons to pass secret messages
Brian Bailey
10/2/2012 6:36 PM EDT
Marking an edge
Next: Using the protractor
Now, you can make these any size you want, but I am going to assume that you will want to make one of these from a regular sheet of paper. You need to easily divide a strip into 6 equal pieces, so something like 4 cm or 1 1/2 inches would be good lengths. I will make mine 1 ½ inches, so trim the paper to 9 inches. Along one edge, mark off six equal distances.
Next: Using the protractor
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Geoff_J
10/4/2012 12:59 PM EDT
Or you could watch this :
http://www.youtube.com/watch?v=VIVIegSt81k
This video is based on, and in honor of, Martin Gardner's first Mathematical Games column from 1956, "Hexaflexagons," which can be found here: http://maa.org/pubs/focus/Gardner_Hexaflexagons12_1956.pdf
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ccalvin
10/8/2012 3:04 PM EDT
I remember reading about Flexigons in SciAm while in Jr. High School. And colored the faces, concealed messages, etc. The mma.org link is interesting as Bryant Tuckerman, Richard Feynman, and John Tukey are mentioned on page 3 as some who worked with flexigons.
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alaki
10/5/2012 12:56 PM EDT
Seems someone running out of ideas! :)
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BrianBailey
10/9/2012 12:55 PM EDT
We all need distractions from our working life at times and some of these things from our past are fun.
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kjdsfkjdshfkdshfvc
10/9/2012 1:37 PM EDT
I know I'm getting old, but when I learned drafting, that pointy thing was called a compass, not a protractor.
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Bellhop
10/9/2012 4:02 PM EDT
Very clever, Brian! You spread it out over ten pages so that you could get ten page-view clicks from each reader!
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