




Date: Fri, 24 Jan 1997 01:24:25 -0400 (AST)
From: Sy Chen <sychen@leatherback.nist.gov>
Subject: Re: PDF and Attach Document

At 11:03 PM 1/23/97 -0400, James M. Sakoda wrote:
>     The second point is that the Attach Document instruction offered by
>Eudora allows me to attach the line drawings with text  as an attachment to
>the email.  All I need to do is to select Attach Document from the menu and
>then find the file that I want to send, presumably in a preferred format,
>such as PDF, or some other format that is acceptable to the receiver.  When
>the mail goes out the email appears in text form, with a note at the top
>for Attachments.  If an attadhment was included its  file name, such as SST
>60. pdf will appear.  The file has been stored on your hard disk, and if
>you find it and have the appropriate reader (Acrobat reader) it will appear
>on your screen.  You do not need to go elsewhere to download it.

My point is that web browsing is easier than decoding in the learner's point
of view since the auto-decoding is not yet a standard feature among those
E-mail client packages. The attached document is actually encoded into an
ASCII format before sending it out. Receiver only gets some garbage like
mail if their E-mail management software can't decode it. E.g. my Eudora
freeware version does not support UUENCODE/UUDECODE. If you send me pdf file
using UUENCODING format, which is supported by Eudora Pro, I need extra
tools to decode it.

Anyway you may still try it (sending to this list) once if you do keep the
file size small. I would love to see the response and comments.

|------------------------------------------------------\
|  _     Shi-Yew Chen (a.k.a. Sy) <chens@asme.org>     |\
| |_| Folding http://www.erols.com/sychen1/pprfld.html --\





Date: Fri, 24 Jan 1997 09:21:15 -0400 (AST)
From: plank@cs.utk.edu
Subject: Re: Compound of 5 tetrahedra

>Date: Thu, 23 Jan 1997 10:36:42 GMT
>From: Dan Johnson <D.Johnson@chemistry.leeds.ac.uk>
>To: origami-l@nstn.ns.ca
>Subject: Compound of 5-tetrahedra
>Message-ID: <199701231036.KAA15736@chmsun8.leeds.ac.uk>
>
>Hello all out there in paper land,
>
>I'm a relative newcomer to this business and have become hooked on
>the modular side of things.  I've made the gum wrapper units by
>Valerie Vann, the stellated dodecahedras by Jeannine Mosely as well
>as a fair proportion of the "penultimate" Jim Plank models.
>
>However.....
>
>The quest I have at the present time is to make the compound of 5
>tetrahedra and the 5 octahedra (the ones in Jim Plank's origami
>page)....PROBLEM.....  How do I start???
>
>As these models, IMO, are some of the best looking that I have seen,
>any advice, diagrams, brief descriptions of the modules would be
>greatly appreciated.

Hi Dan -- presently I do not have good instructions for either of
these.  I have bad ones for the compound of 5 octahedra that I can
trim up to make readable.  I'll try to do that in the next week or
so, and I'll put it on my web page.  I'm not sure when I'll get around
to the 5 tetrahedra, but I'll put it on my mental to-do list.

Jim Plank
---------------------------------------------------------------------------
Jim Plank plank@cs.utk.edu http://www.cs.utk.edu/~plank
Assistant Professor, Department of Computer Science
University of Tennessee, 107 Ayres Hall, Knoxville, TN 37996





Date: Fri, 24 Jan 1997 10:23:59 -0400 (AST)
From: Steve Woodmansee <stevew@empnet.COM>
Subject: Re: Book buying....

At 06:22 PM 1/23/97 -0400, you wrote:
>I was hoping that many of you kind folders would give
>me some advice and help me make a tough decision.
>I received a $25 gift certificate for Barnes & Noble for
>Christmas. I am wanting to spend it wisely on a
>GREAT compendium of paperfolding perplexity.
>In other words, I would like to buy the best book
>possible for about the $25 amount.

Here's my .02:

Brill's book has really interesting and fun models, like the dragon with St.
George on the cover, etc...As an intermediate to advanced folder you might
find this most appealling.

Engel's A-Z book is also invaluable for it's encyclopedic value.  Many
different Origami styles are addressed and there is a lot of concentration
on variety as opposed to complex models (for the most part).

Bottom line:  Depends on what's more important to you...

 ///,        ////
 \  /,      /  >.
  \  /,   _/  /.
   \_  /_/   /.
    \__/_   <
    /<<< \_\_
   /,)^>>_._ \
   (/   \\ /\\\
        // ````
 ======((`=======

Just my $.02!

Steve Woodmansee
stevew@empnet.com
Bend, Oregon





Date: Fri, 24 Jan 1997 11:32:11 -0400 (AST)
From: Steve Theil <theil@htonline.com>
Subject: Origami-L: Pentas AND Modules AND School

I hope I'm not too far off the wall here, but the fascinating and
stimulating discussion on Origami-L about the mathematics of folding,
production of modules, and uses of origami in the classroom made me wonder
if anyone has produced a geodesic ball with pentagons and hexagons a la
Buckminster Fuller. (Euler's law: any polyhedron with more than 22
even-numbered edges can be constructed from 12 pentagons and some number of
hexagons).

This may be of particular interest in the classroom since the 1996 Nobel
Prize for chemistry went to Curl, Kroto, and Smalley for their discovery of
a third form of carbon (the other two are graphite which has a sheetlike
form, and diamond which has a tetrahedral form), carbon 60 buckminster
fullerene (or buckyballs) which comes in the shape of . . . you guessed it!
Soccer balls. (See pp. 14-15, Scientific American, Jan. '97)

Linda Theil
theil@htonline.com





Date: Fri, 24 Jan 1997 15:52:36 -0400 (AST)
From: hull@MATH.URI.EDU
Subject: Re: Origami-L: Pentas AND Modules AND School

Yo yo yo.

Linda Theil writes,

> ... made me wonder if anyone has produced a geodesic ball with pentagons
> and hexagons a la Buckminster Fuller.

Yep.  I believe there are a number of origami modules out there that
can get the job done, but I have one that works very nicely.  Lemme
try to describe it:

(1) Accordian-pleat a square into 4ths.

(2) Make the following creases in your 1x4 strip:

+--------------+
|  /\  |\     /|
| /  \ | \   / |
|/    \|  \ /  |
+--------------+
Note: not to scale.  The center vertical crease is a mountain, the
others are valleys.

That's it!  You then gotta figure out how to make three such modules
interlock to form a corner.
        This unit can make any polyhedron with only pentagon and hexagon
faces, and thus Buckyballs, among other things.  Making square or
seven+ sided faces is possible, but it causes strain on the units
and they cease to lock as well.
        But the nicest thing about this unit is that the lock is very
strong!  (It follows the same locking mechanism as in Bob Neale's
dodecahedron unit, only this lock is even stronger because the flaps
are bigger.)  The largest thing I've made with it is a Buckyball
with 810 units (i.e., the truncated dual of the truncated dual of
the truncated dual of the dodecahedron).  I've made three such
large balls, and each hold together very well.
        My main interest has been on producing proper colorings of
such balls.  That is, making sure that no two units of the same
color touch, and trying to do this with only three colors.  A series
of such 3-colored balls of mine were on display at the recent AMS/MAA
Annual Conference in San Diego earlier this month, and they'll be
on display again at the next OUSA convention in New York City (this
June).

        And yes, these make GREAT educational tools!

--------- Tom "don't blink, or you'll miss a unit" Hull
          Dept. of Mathematics
          Univ. of Rhode Island
          hull@math.uri.edu
          ** currently on the job market! **





Date: Fri, 24 Jan 1997 15:55:51 -0400 (AST)
From: "P.F.C. Blondel" <blondel@sara.nl>
Subject: Re: new born folder ! (oeps small error)

>
> Hi all,
>
> To all who know Marrigje Barnard; at 19:14 local time
> she has given birth to a baby boy of about 4.25 kg.
> His name is Joshua David and all is well.
>
    The name is Joshua Michael
    (my wife heard it wrong due to the excitement)

--Peter





Date: Fri, 24 Jan 1997 15:58:14 -0400 (AST)
From: Kim Best <kim.best@m.cc.utah.edu>
Subject: Re: Book buying....

Troy D Tate wrote:
> B&N today and they have both "Brilliant Origami"
> by David Brill and "Origami: Angelfish to Zen" by
> Peter Engel. Which one of these would you
> recommend & why? Or, is there another
> exciting volume that I should invest in?

My advice is, get them both!  Even if it means shelling out some extra
money.  Those are two of the must haves, in any serious origami book
collection!

--
Kim Best                            *******************************
                                    *          Origamist:         *
Rocky Mountain Cancer Data System   * Some one who thinks paper   *
420 Chipeta Way #120                * thin, means thick and bulky *
Salt Lake City, Utah  84108         *******************************





Date: Fri, 24 Jan 1997 16:32:10 -0400 (AST)
From: Lisa_Hodsdon@hmco.com
Subject: Re: Book buying....

Who publishes Brilliant Origami? I assume it's not Dover.

If this is the case, and you really can't afford to get both, then
consider the fact that the non-Dover book is *very* likely to
be out of print far sooner than the Engel book (which is
currently a Dover reprint).

How many of us have cried, in vain, because we didn't buy
*that* wonderful book before it went out of print. A sad
fact of life when you selectively buy origami books.

Lisa
Lisa_Hodsdon@hmco.com
Boston, MA, USA





Date: Fri, 24 Jan 1997 16:50:27 -0400 (AST)
From: Oded Streigold <benjic@netvision.net.il>
Subject: Re: Book buying....

"Origami: Angelfish to Zen" is a great book because of the great article
there,
the woderfull models, and the development-plan/crease-pattern for every
model
which can help in inventing folds. The models start from intermadiate to
complex. All the models there are very pretty, very lively.
Brilliant Origami is a wonderful book indeed, the models there are very
hard
to acomplish, they sometimes look rather simple, but they require every
bit
of skill you can use, and they may require technics like wet-folding,
and paper
sculpting. The result is magnificent, in my opinion more beautiful then
most
origami works, but as I said it's very demanding.
I would recommend Brilliant origami, because it's so different and
original.

Oded.

benjic@netvision.net.il

Troy D Tate wrote:
>
> I was hoping that many of you kind folders would give
> me some advice and help me make a tough decision.
> I received a $25 gift certificate for Barnes & Noble for
> Christmas. I am wanting to spend it wisely on a
> GREAT compendium of paperfolding perplexity.
> In other words, I would like to buy the best book
> possible for about the $25 amount. I went by
> B&N today and they have both "Brilliant Origami"
> by David Brill and "Origami: Angelfish to Zen" by
> Peter Engel. Which one of these would you
> recommend & why? Or, is there another
> exciting volume that I should invest in?
>
> BTW, I consider myself an intermediate folder
> or better. I made the Kawasaki rose the first
> time without any major hitches and have many
> of the other intense models by Lang & Montroll.
>
> Thanks for the information and may all your
> creases be correctly creased from point A to
> point B or beyond!
>
> Troy
> =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
> Seriously trying to avoid those techies
> who have a "charisma-bypass".





Date: Fri, 24 Jan 1997 17:04:07 -0400 (AST)
From: Doug Philips <dwp+@transarc.com>
Subject: Re: Book buying....

+Who publishes Brilliant Origami? I assume it's not Dover.

Japan Publications (from memory, my copy is at home, not work
(oh yeah, I'd love to have a copy of my library at work, I'm just not willing
to PAY for it! ;-) ;-) )).

+If this is the case, and you really can't afford to get both, then
+consider the fact that the non-Dover book is *very* likely to
+be out of print far sooner than the Engel book (which is
+currently a Dover reprint).
+
+How many of us have cried, in vain, because we didn't buy
+*that* wonderful book before it went out of print. A sad
+fact of life when you selectively buy origami books.

I agree wholeheartedly!  I had been weighing the pro's and con's of the books
on their merits, and was just about to chime in that I liked them both for
different reasons, but would probably actually fold more from Brilliant
Origami when Lisa's message arrived and reminded of the cold hard
"availability" issue.

Get Brilliant Origami - save up for Engel - it'll be around longer.

-Doug





Date: Fri, 24 Jan 1997 17:10:52 -0400 (AST)
From: Pat Slider <slider@stonecutter.com>
Subject: Re: Book buying....

At 04:32 PM 1/24/97 -0400, you wrote:
>Who publishes Brilliant Origami? I assume it's not Dover.
>
>If this is the case, and you really can't afford to get both, then
>consider the fact that the non-Dover book is *very* likely to
>be out of print far sooner than the Engel book (which is
>currently a Dover reprint).
>

"Brilliant Origami" is published by Kodansha. Coincidentally, a couple of
months ago, the Edmund Hamilton "SuperStore" catalog for new books (not the
remainder catalog) was carrying this for just under $15.

(I find it interesting that the Hamilton new book catalog seems to carry new
titles from Kodansha press. Something to keep in mind.)

If you want to get the Hamilton catalogs, just send a postcard to:

Edward R. Hamilton, Bookseller
Falls Village, CT 06031-5000

Might want to specify that you want both the "SuperStore" and the remainder
book catalog. Both catalogs are pretty hefty newspaper "tabloids" and take a
bit to browse through, but I normally find it worthwhile. Of course, you can
just watch the "craft" sections for the origami titles.

They only work through the mail via check, no credit cards. In fact, they
don't even list a phone number on their catalog! But I have never had a
problem with returning items (even 3 months later), and they cut checks
immediately to refund payments when one or more books I ordered were
out-of-stock.

Think I have written this all before, but oh well....And yes, I still buy
lots of books at local independent bookstores too :->.

pat slider
slider@stonecutter.com

P.S. If you buy the Engel book or any other book, Barnes & Noble will
probably give you the change in cash, which you can then spend in another
store which might have a different stock of origami books. These decisions
are hard, aren't they?

oh....and somewhere I've seen a used copy of the Engel book. Actually the
older version published by Vintage.  I'll look it up later and post the
info, but I was thinking that the newer Dover book is probably cheaper. I
think this used copy was $9.50.





Date: Fri, 24 Jan 1997 18:57:28 -0400 (AST)
From: Eric Andersen <Eric_Andersen@brown.edu>
Subject: Re: Book buying....

At 05:11 PM 1/24/97 -0400, you wrote:
>
>At 04:32 PM 1/24/97 -0400, you wrote:
>>Who publishes Brilliant Origami? I assume it's not Dover.
>>
>>If this is the case, and you really can't afford to get both, then
>>consider the fact that the non-Dover book is *very* likely to
>>be out of print far sooner than the Engel book (which is
>>currently a Dover reprint).
>>
>"Brilliant Origami" is published by Kodansha. Coincidentally, a couple of
>months ago, the Edmund Hamilton "SuperStore" catalog for new books (not the
>remainder catalog) was carrying this for just under $15.

Hi Pat (and everyone else)!
   "Brilliant Origami" (or my copy at least) is published by Japan
Publications, Inc. and *distributed* in the United States by Kodansha
America, Inc. through Farrar, Strauss, & Giroux. I purchased my copy in
Barnes & Noble for $20.00 and I highly recommend it! The
three-dimensionality of these models is what I enjoy the most. Also, I plan
to put up a web page soon with some of these models.

-Eric :-P

-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
      A                   A
     /|\            \    /|\
    / | \            \\ / | \ /7\            /-\.
   /__|__\            \/__|__\/            a miniature
   \  |  /             \_/ \_/               Kawahata
    \ | /             Flapping                stegosaurus
     \|/                bird
      V                       Eric Andersen   origami@brown.edu
  Bird Base             http://www.netspace.org/~ema/origami.html





Date: Sat, 25 Jan 1997 06:10:42 -0400 (AST)
From: Nick Robinson <nick@cheesypeas.demon.co.uk>
Subject: Re: PDF and Attach Document

Joseph Wu <origami@planet.datt.co.jp> sez

>Fourth, while the Acrobat reader is free, it costs connect time to download
>it, and disk space to house it. People may not be willing to spend those
>resources.

Surely, the main problem is that you can't get a free pdf encoder or am
I wrong?

all the best,

Nick Robinson

personal email  nick@cheesypeas.demon.co.uk
work mail       nick@rpmrecords.demon.co.uk
homepage        http://www.rpmrecords.co.uk/nick
BOS homepage    http://www.rpmrecords.co.uk/bos/
DART homepage   http://www.shef.ac.uk/uni/projects/oip/dart/
RPM homepage    http://www.rpmrecords.co.uk





Date: Sat, 25 Jan 1997 10:27:25 -0400 (AST)
From: Mark <mark@gilchrist.demon.co.uk>
Subject: Re: PDF and Attach Document

>     Origami emailers are in need of a method of sending some limited line
>drawings along with their verbal discussions to clarify the situation.

8< ------- Snip! ------ Snip! --------- Snip! --------- >8

Would a newsgroup be a solution to this problem?  Text could be posted as
normal, with UUencoded files available for further explanations.  The
reader could then choose whether to grab the file or not (assuming they
have an off-line reader which lets them choose which messages to pick up.

--
Mark





Date: Sat, 25 Jan 1997 10:38:19 -0400 (AST)
From: Mark <mark@gilchrist.demon.co.uk>
Subject: Re: Book buying....

> I am wanting to spend it wisely on a
>GREAT compendium of paperfolding perplexity.
>In other words, I would like to buy the best book
>possible...

8< ---- Snip! ----------------------- >8

I assume you have books by the great Mr Harbin then!

I agree with the other replies though.  Brilliant Origami is excellent, as
is A-Z: Angelfish to Zen.  I also like Jurassic Origami (Edwin Ee),
although it is rather specialised.  Kasahara's Origami Made Easy is quite
good, in fact my copy has been used so much it's now falling apart!

Finally don't discount "foreign language" books.  I have some books from
China.  I can't read a word of them, but the diagrams are quite clear,
using standard symbols.

Hope this helps

Mark

..Folding the Universe, but having trouble with a closed sink to produce a
black hole





Date: Sat, 25 Jan 1997 13:12:37 -0400 (AST)
From: Matthias Gutfeldt <tanjit@bboxbbs.ch>
Subject: Re: PDF and Attach Document

Mark wrote:

> Would a newsgroup be a solution to this problem?  Text could be posted as

That Newsgroup already exists: alt.binaries.pictures.origami.
However, it is usually cluttered with spam. But it is no problem to just
filter
out the postings you want; any decent News-Client can do it.

Matthias

(and that's my first message in this mailing list. Hi!)





Date: Sat, 25 Jan 1997 14:15:42 -0400 (AST)
From: OrigamiCMM@aol.com
Subject: My Page is up!

My very simple page is up, at http://users.aol.com/origamicmm/

I would like for you to take a look at it, and give me some suggestions.
It is netscape-enhanced, with some borrowed scripts.

Chris
OrigamiCMM
origamicmm@aol.com
fenturi@aol.com





Date: Sat, 25 Jan 1997 15:25:29 -0400 (AST)
From: Preaux cyrille <preaux@univ-lyon1.fr>
Subject: Re: Getting the largest perfect pentagon from a square

Robby/Laura/Lisa wrote:

> My method is too complicated to explain here without drawings: ASCII art is
> NOT adequate in this case.... :-), but I can send photocopies (or maybe
> scanned images by E-mail) to anyone interested.
>
> Roberto
>

seems to be very interesting and would like to get some copies to.
Is there other problems like that ?(I would like to test me on it)

Another thing, Roberto, U told me a week ago about an Origami center in
Turin. Do you have an address? (would like to join them before to go
there if possible).

Thanks for all,

Cyrille.





Date: Sat, 25 Jan 1997 20:59:57 -0400 (AST)
From: Eric Andersen <Eric_Andersen@brown.edu>
Subject: folding dragon fractal iterations (was Re: WWW folds and such)

At 09:18 AM 1/25/97 -0400, you wrote:
..
>
>I guess you got the idea, but let's make it one more time, for the fun of it:
>Refold to previous step (paper folded in 4), and fold one more time in 2.
>Now, unfold carefully, and look at each intermediate step:
>
>1st unfold:     2nd unfold:     3rd unfold:
>                                    _
>                   |_            |_| |_
>_|                  _|                _|
>

        Hi Nicolas! I learned this at a Chaos and Fractals lecture series
at Princeton University during the summer of 1993. The very first lecture
was given by Professor Heinz-Otto Peitgen, a Mathematics Professor at the
University of Bremen and a big deal in the field of chaos and fractals (he
helped write one of the first great books on the subject, "Chaos and
Fractals", published by Springer-Verlag.
        Professor Peitgen started off his lecture with this simple
paperfolding exercise, showing us that if you fold a strip of paper in half
a few times as described (each time in the same direction), the partially
unfolded paper will be the an iteration of the well-known Harter-Heighway
dragon fractal.

>Now for the fun part. Let's number each 90 degree angle, 0 if to the left, 1
>if to the right. Using this, you can code the nth step using a (2^n)-1 suite
>of binary values.
>
>We're always starting using the same extremety of the paper, that is the
>lower extremety of the ASCII diagrams above.
>
>1st step: 0
>2nd step: 001
>3rd step: 0010011
>And so on:
>4th step: 001001100011011
>5th step: 001001100011011 0 001001110011011
>etc.

In the Chaos and Fractals book this is called an L-system (L stands for a
left turn) and we can simply use the symbols L and R to describe in order
which direction we turn at each corner, starting at the edge of the paper:

L
LLR
LLRLLRR
LLRLLRRLLLRRLRR
..

        As Nicolas pointed out, this seemingly irregular sequence has some
surprising patterns. If someone gave you the sequence LLRLLRRLLLRRLRR,
probably nothing would jump out at you. Yet if we start with L, and precede
it with L and follow it with R, then we have LLR. Now if we precede L with
LLR and follow it with its "opposite", backwards, we get the third
iteration, and so forth.
        This "surprising" pattern makes perfect sense when we consider the
paperfolding algorithm that's going on. When we fold the piece of paper in
half for the third time, we see that the beginning "LL" corresponds to the
ending "RR" and so forth until we get to the middle.
        Are there any other ways to get this sequence? What is so special
about the paperfolding? The answer to these questions, of course, is yes.
For instance there is fairly simple mechanism for determining whether an L
or a R comes next at each point in the sequence (using a "bubble" diagram
algorithm thingy that I can't remember). The dragon curve can also be
constructed using an MRCM (multiple reduction copying mechanism). I quote
from "Chaos and Fractals":

    "We start with a right angle as shown:

    _________________
   |        |        |
   |        |        |
   |        |        |
   |        |________|
   |                 |
   |                 |
   |                 |
   |_________________|

   The first stage of the construction is obtained by fitting two copies of
this curve (each one reduced by the factor 1/sqrt(2) and rotated 45 or 135
degrees respectively) to form a new curve. Again this procedure is repeated
stage by stage ad infinitum..."

Well, I can't really draw it, but the next step looks like this rotated 45
degrees clockwise:

        ______
       |
       |
       |______
              |
              |
              |

        Relatives of this curve include the Hilbert curve, the Koch Island
(not the snowflake!), and the Peano curve. Does anyone know a paperfolding
algorithm for the Peano curve? The Peano curve and dragon curve are both
space-filling curves, and, as Nicolas pointed out, self-avoiding.

-Eric  :-P

-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
      A                   A
     /|\            \    /|\
    / | \            \\ / | \ /7\            /-\.
   /__|__\            \/__|__\/            a miniature
   \  |  /             \_/ \_/               Kawahata
    \ | /             Flapping                stegosaurus
     \|/                bird
      V                       Eric Andersen   origami@brown.edu
  Bird Base             http://www.netspace.org/~ema/origami.html





Date: Sat, 25 Jan 1997 21:45:39 -0400 (AST)
From: "James M. Sakoda" <James_Sakoda@brown.edu>
Subject: Re: PDF and Attach Document

>Joseph Wu <origami@planet.datt.co.jp> sez
>
>>Fourth, while the Acrobat reader is free, it costs connect time to download
>>it, and disk space to house it. People may not be willing to spend those
>>resources.
>
>Surely, the main problem is that you can't get a free pdf encoder or am
>I wrong?
>
>all the best,
>
>Nick Robinson
>
>personal email  nick@cheesypeas.demon.co.uk
>work mail       nick@rpmrecords.demon.co.uk
>homepage        http://www.rpmrecords.co.uk/nick
>BOS homepage    http://www.rpmrecords.co.uk/bos/
>DART homepage   http://www.shef.ac.uk/uni/projects/oip/dart/
>RPM homepage    http://www.rpmrecords.co.uk

The Acrobat reader can be distributed or downloaded free.  It does take a
one time charge to download it and also to store it, but it can mean a
tremendous boost to origami email to be able to receive and read attached
documents which are clear and can be used across platforms.  Think of it as
a format which is likely to dominate future exchanges of line drawings and
text.  James M. Sakoda





Date: Sun, 26 Jan 1997 01:08:02 -0400 (AST)
From: Sheldon Ackerman <ackerman@dorsai.dorsai.org>
Subject: Re: PDF and Attach Document

> >
> >Surely, the main problem is that you can't get a free pdf encoder or am
> >I wrong?
>
> The Acrobat reader can be distributed or downloaded free.  It does take a
> one time charge to download it and also to store it, but it can mean a
> tremendous boost to origami email to be able to receive and read attached
> documents which are clear and can be used across platforms.  Think of it as
> a format which is likely to dominate future exchanges of line drawings and
> text.  James M. Sakoda

What do you mean by it takes a one time charge to download it and store it?
Did you have to pay for downloading it?
--
Sheldon Ackerman.......http://www.dorsai.org/~ackerman/
ackerman@dorsai.dorsai.org
sheldon_ackerman@fc1.nycenet.edu





Date: Sun, 26 Jan 1997 01:27:35 -0400 (AST)
From: Bernie Cosell <bernie@fantasyfarm.com>
Subject: Re: PDF and Attach Document

On 26 Jan 97 at 1:08, Sheldon Ackerman wrote:

> > >Surely, the main problem is that you can't get a free pdf encoder or am
> > >I wrong?
> >
> > The Acrobat reader can be distributed or downloaded free.  It does take a
> > one time charge to download it and also to store it, but it can mean a
> > tremendous boost to origami email to be able to receive and read attached
> > documents which are clear and can be used across platforms.  Think of it as
> > a format which is likely to dominate future exchanges of line drawings and
> > text.  James M. Sakoda
>
> What do you mean by it takes a one time charge to download it and store it?
> Did you have to pay for downloading it?

The player is free: the one-time charge James was referring to is the cost
[if any] of downloading something that is 4 megs big [adobe's isn't the
fastest site on the web, and so it'll probably take you a good 45 minutes
to download the thing].

Note too: unless you are bound and determined ONLY to mess with
text-based email, you're almost certainly going to need/want the acrobat
reader -anyway-.  More and more web pages are using it and I suspect that
even if we don't send attachments on origami-l, pretty quick you're going
to want to have it as a plug-in for your browser.

  /Bernie\
--
Bernie Cosell                     Fantasy Farm Fibers
bernie@fantasyfarm.com            Pearisburg, VA
    -->  Too many people, too few sheep  <--





Date: Sun, 26 Jan 1997 12:43:32 -0400 (AST)
From: Steve Theil <theil@htonline.com>
Subject: Re: Origami-L: Pentas AND Modules AND School

Many, many thanks to Tom Hull for his very interesting and comprehensive
post re: my request for an origami Bucky Ball.

My problem is . . . I got lost after "accordian pleat a square into
fourths"! I thought all those MMMMMs and WWWWWs in previous posts were
jokes that I didn't get!

It's obvious that I have a lot to learn and am heading for the nearest
bookstore to check out books on modulars. I have Fuse's ORIGAMI BOXES, but
it doesn't deal with these pleated strips that one obviously needs to
create these modules.

Also checked out Jim Plank's geometric origami page on the web:
http://www.cs.utk.edu/~plank/plank/origami/origami.html
on the recommendation of a fellow listmember.

Many thanks for your kind attention and assistance.

Linda Theil
theil@htonline.com





Date: Sun, 26 Jan 1997 13:57:37 -0400 (AST)
From: Mark <mark@gilchrist.demon.co.uk>
Subject: Re: PDF and Attach Document

> The Acrobat reader can be distributed or downloaded free.  It does take a
> one time charge to download it

Many magazines will have Acrobat Reader on a cover CD ...

..well the UK Mac ones do anyway :-)

Still, that doesn't help with actually producing the darned things in the
first place.  As for alt.binaries.oripix or whatever, I visited it and it
was full of spam and pictures that definitely were not paper (interesting
to try and fold them though!)

Be seeing you

Mark

..Folding the Universe, but having trouble with a closed sink to produce a
black hole





Date: Sun, 26 Jan 1997 14:52:07 -0400 (AST)
From: Kenny1414@aol.com
Subject: Re: Origami-L: Pentas AND Modules AND School

In a message dated 97-01-26 12:02:47 EST, you write:

<< My problem is . . . I got lost after "accordian pleat a square into
 fourths"!  >>

If that's the Robert Neale module for the dodecahedron (from 30 modules),
that I remember, the accordian pleat can be done by: (see the disclaimer
further down)

(1) position the square in front of you, bottom edge going left to right, and
colored-side up;

(2) (fold) raise the lower edge to the upper edge, for a valley fold, to
bookfold the square in half, horizontally, colored-side in (this is an
orthogonal fold, edge-to-edge, as opposed to a diagonal fold);

(3) (position), rotate 180 degrees (half-circle) clockwise, so the folded
edge is the upper right-to-left edge;

(4) (fold) then raise the raw long bottom edge of the upper layer half-square
flap, to the folded edge, and valley fold another lengthwise bookfold, so the
long raw edge lies on the folded edge from step (1), colored-side out;

(5) (position) and turn the paper over, left-to-right, to get at the other
half square flap, and repeat step 4 on this second flap.

To finish the module:

(6) (orientation & strategy) You should now be looking at the "accordion
pleat" in fourths, colored side out. It is a 1x4 rectangle. Think of it as
being divided into four 1x1 squares. You want to fold three diagonal creases,
in a zigzag pattern. The left and right will be diagonals of the left and
right squares; and will be parallel to each other. The middle crease will be
a diagonal of the 1x2 rectangle formed by the two middle squares. And these 3
diagonal creases connect end-to-end.

(7) (arbitrary choice) One possibility is to valley fold the three diagonals
as follows, from the square on the left, upper left corner to lower right
corner, then across the middle two squares lower left corner to upper right
corner, then across the remaining square upper left corner to leower right
corner.

It doesn't matter whether you start upper left corner to lower right corner
in the leftmost small square, or lower left corner to upper right corner, as
long as you are consistent with all 30 modules. (This means you have a
choice, between all "left-handed" modules, or all "right-handed" modules, but
you can't mix them. At least I think you can't. If you can, I'd be interested
in the result.)

(Note, I said valley fold, only because, my experience is that a valley fold
is easier to line up, than a mountain fold. Also, the valley-folded side of
the module will face the interior of the dodecahedral ball. If you have a
module that looks better on one side, you can choose which side goes out.
This helps if you're using wrapping paper, or have an accident.)

8) (additional orientation) The two little end triangles are tabs that  go
into the "pockets" between the layers of other modules, and "hook" over the
middle diagonal crease.

(There is actually one "pocket" too many, since the accordian pleat left you
with two on one long side, and one on the other long side. This model could
be made from 3x4 rectangles, pleated in thirds lengthwise, giving up the
extra flap, but it is stronger with the extra layer.)

Assembly:

9) (strategy) The modules go along the edges of the dodecahedron. That middle
diagonal is the edge. (Note that the angle between the diagonals of one
module where they meet, is almost exactly the angle between the edges of a
pentagon. Real close, but not mathematically exact.) They will group into 12
pentagonal rings of 5 modules, with neighboring rings sharing an edge, and
exactly 3 modules/edges will meet at each of the 20 corners of the
dodecahedron.

19) (assembly) The tabs are slipped into the pockets, between the layers, of
the neighboring module, far enough to "hook" over that module's middle
diagonal. Then slide the first module down, so it's hooked on at one end of
the second module's middle diagonal. When this is done right, the middle
creases of the two modules will be end-to-end, at almost the angle of a
pentagon.

I know this isn't as clear as it could be, but hopefully this helps?

Comments:
Jim Plank's pages show his extension of this base module, by varying the
angle at the end of the edge, so the ring on that side of the edge is a
different shape, and can be used for the other polyhedra. One of those neat
ideas I wish I'd thought of.

I see from my notes, that he's simplified the module to the 3x4 rectangle, to
get rid of the confusing extra pocket, and have a different inside and
outside color.

Disclaimer:

This is not the only way of putting in the creases. Feel free to fold in
whatever way works for you. Find the direction and folding method that is
most comfortable and accurate for you.

These instructions are for the way I fold, since, for me, folding an edge up
to and edge, feels easier, than folding an edge, left-to-right to an edge;
and valley folding usually feels easier than mountain folding.

Also, I am left-handed, so don't take my left-to-right directions as gospel.

Misc. Comments on Techniques:

Sometimes it's easier to move a corner to an edge, and then adjust the
position until points, corners, edges, etc. line up, and then squash the
paper.

Sometimes, I move the paper to align landmarks, and lightly pinch the paper
to mark the new in-between landmarks, that I can then use as starting and
stopping places for edges or folds.

I've tried closing my eyes, and letting my fingertips feel for the edges
lining up, especially when the lighting is low or my eyes are tired.

Mountain folding does feel easier, when I'm folding a crease from one point
to another, where I can pinch at the two points, and stretch the paper
between the two points and squash the mountain fold into place.

I've also partly learned the trick of putting two landmarks together, holding
them tight, and using the other hand to pull and squash the paper away from
the holding point. That lets you put two corners together, and bookfold the
square in half in one or two sweeps, and have the corners and edges line up,
provided you held on tight, and kept an even tension during the "sweep".

But sometimes, I just pinch-pinch-pinch along the line, to locate it and pin
it dowen accurately, then go over it with one or two squashing sweeps, to get
a nice sharp final crease.

When I learn a fold, I may adjust the folding sequence to:
a) make it easier and more comfortable;
b) locate the folds, neatly, and accurately;
c) add a little slack, where the model wants it, for instance, inside the
head and tail of the crane;
d) have the model proportions look "right";
e) Adjust the folding to minimize the wrong  side of the paper showing;
f) try to eliminate extra creases that show on the outside of the model;
g) take advantage of the pattern of the paper.

Aloha,

Kenny1414@aol.com

Kenneth M. Kawamura
PO Box 6039
E Lansing  MI  48826-6039





Date: Sun, 26 Jan 1997 15:15:25 -0400 (AST)
From: Nick Robinson <nick@cheesypeas.demon.co.uk>
Subject: Re: PDF and Attach Document

"James M. Sakoda" <James_Sakoda@brown.edu> sez

> Think of it as
>a format which is likely to dominate future exchanges of line drawings and
>text.  James M. Sakoda

I've heard this a few times in the past, but you may well be right.
However, without a convenient (ie. cheap!) means of converting my
diagrams into pdf, it's no use to me at present! I've also had a few
problemsprinting out pdf files, those that are arranged in other than A4
format don't fit on a printout & I can't see any way around this....

all the best,

Nick Robinson

personal email  nick@cheesypeas.demon.co.uk
work mail       nick@rpmrecords.demon.co.uk
homepage        http://www.rpmrecords.co.uk/nick
BOS homepage    http://www.rpmrecords.co.uk/bos/
DART homepage   http://www.shef.ac.uk/uni/projects/oip/dart/
RPM homepage    http://www.rpmrecords.co.uk





Date: Sun, 26 Jan 1997 17:09:05 -0400 (AST)
From: Vincent & Veronique <osele@worldnet.fr>
Subject: Re: PDF and Attach Document

Hello Nick,

> Surely, the main problem is that you can't get a free pdf encoder or am
> I wrong?

You wrong and right. I find a pdf encoder called ps2pdf, which
translate postscript file to pdf. It is packaged with Ghostview 4.03.
I'm not sure, but it seems to be free, but under GNU licence ?

I tried it, it's ok, the pdf file could be read by acrobat, BUT a
small drawing, became big when I print in a ps file, and became
enormous (5 time bigger than ps file!) in this pdf format!

Vincent
 _______                                                     _____
|       | Osele Vincent (Toulouse/France) Membre du MFPP    /|    |
|       | osele@worldnet.fr                                /_|    |
|       | http://www.worldnet.fr/~osele/origami.htm       |       |
|_______| -----------------> ORIGAMI -------------------> |_______|





Date: Sun, 26 Jan 1997 17:52:49 -0400 (AST)
From: "James M. Sakoda" <James_Sakoda@brown.edu>
Subject: Re: PDF and Attach Document

>"James M. Sakoda" <James_Sakoda@brown.edu> sez
>
>> Think of it as
>>a format which is likely to dominate future exchanges of line drawings and
>>text.  James M. Sakoda
>
>I've heard this a few times in the past, but you may well be right.
>However, without a convenient (ie. cheap!) means of converting my
>diagrams into pdf, it's no use to me at present! I've also had a few
>problemsprinting out pdf files, those that are arranged in other than A4
>format don't fit on a printout & I can't see any way around this....
>
>all the best,
>
>Nick Robinson
>
Nick, creating PDF is a more difficult problem than reading it.  Printers
usually provide a choice of output formats, I believe.  If you like, I can
send you a copy of Acrobat Reader, which you can use to read and print out
any PDF document that happens to be sent to you.  Jim Sakoda





Date: Sun, 26 Jan 1997 18:13:03 -0400 (AST)
From: "James M. Sakoda" <James_Sakoda@brown.edu>
Subject: Re: PDF and Attach Document

>> >
>> >Surely, the main problem is that you can't get a free pdf encoder or am
>> >I wrong?
>>
>> The Acrobat reader can be distributed or downloaded free.  It does take a
>> one time charge to download it and also to store it, but it can mean a
>> tremendous boost to origami email to be able to receive and read attached
>> documents which are clear and can be used across platforms.  Think of it as
>> a format which is likely to dominate future exchanges of line drawings and
>> text.  James M. Sakoda
>
>What do you mean by it takes a one time charge to download it and store it?
>Did you have to pay for downloading it?
>--
>Sheldon Ackerman.......http://www.dorsai.org/~ackerman/
>ackerman@dorsai.dorsai.org
>sheldon_ackerman@fc1.nycenet.edu

The Adobe Acrobat 3.0 which includes several programs to deal with PDF
production as well as reading and printing PDF.  costs up to $200.  The
latest version of Freehand reportedly puts out drawings in PDF format.  To
read and print PDF, however, one can use Acrobat Reader, which is
distributed free of charge.      Or you can use Navigator 3.0 and use a PDF
viewer Plug-in to view it from within Netscape.  For downloading Acrobat
Reader you should consult Adobe.com on the WWW.  James M. Sakoda





Date: Sun, 26 Jan 1997 19:04:33 -0400 (AST)
From: Sy Chen <sychen@leatherback.nist.gov>
Subject: Re: PDF and Attach Document

At 03:17 PM 1/26/97 -0400, Nick Robinson wrote:
>I've heard this a few times in the past, but you may well be right.
>However, without a convenient (ie. cheap!) means of converting my
>diagrams into pdf, it's no use to me at present! I've also had a few
>problemsprinting out pdf files, those that are arranged in other than A4
>format don't fit on a printout & I can't see any way around this....

Well You may use Ghostscript (http://www.cs.wisc.edu/~ghost/index.html) to
generate pdf file if you do want free pdf writer. That is what I used for
generating pdf file from almost any window programs which support printing.
The con point is that Ghostscript is not so savvy to handle all of those
non-standard postscript features. Use it as your own risk!

The other option for free pdf writing would be using pstoedit
ftp://ftp.x.org/contrib/applications/tgif/pstoedit/pstoedit.html
The author releases its source codes for many platforms. But I got no time
to test it in my machine.

The 3rd option is using PageDraw for Windows (Free) http://www.wix.com/PageDraw/
I found its diagramming feature is still too limit to be a good diagram
editor yet. But you may bug the author to enhance it. What can be expected
for a freeware program?

|------------------------------------------------------\
|  _     Shi-Yew Chen (a.k.a. Sy) <chens@asme.org>     |\
| |_| Folding http://www.erols.com/sychen1/pprfld.html --\





Date: Sun, 26 Jan 1997 19:15:16 -0400 (AST)
From: Sy Chen <sychen@leatherback.nist.gov>
Subject: Re: PDF and Attach Document

At 05:11 PM 1/26/97 -0400, Osele Vincent wrote:

>
>I tried it, it's ok, the pdf file could be read by acrobat, BUT a
>small drawing, became big when I print in a ps file, and became
>enormous (5 time bigger than ps file!) in this pdf format!
>

Vicent was right. It is good for free pdf writing but bad as a disk saver.

|------------------------------------------------------\
|  _     Shi-Yew Chen (a.k.a. Sy) <chens@asme.org>     |\
| |_| Folding http://www.erols.com/sychen1/pprfld.html --\





Date: Sun, 26 Jan 1997 21:13:28 -0400 (AST)
From: GURKEWITZ@WCSUB.CTSTATEU.EDU
Subject: Re: Origami-L: Pentas AND Modules AND School

Steve Theil writes that he is interested in Bucky Ball modules.
Well, there is one in "3D Geometric Origami: Modular Polyhedra"
modules made from equilateral triangles.

There is also one I believe, that makes nanotubes too, in COET
Proceedings. Conference on Origami Education and Therapy Proceedings
are available from OUSA.

Rona





Date: Mon, 27 Jan 1997 09:49:42 -0400 (AST)
From: rhudson@netrax.net (Hudson-Robert)
Subject: Deeeellllayy

Just thought I'd drop a note to the list to ask if anyone had sent me any
SASE's for diagrams and information in the last YEAR! I graduated from
college recently, and now have to time to fill those requests.  Please drop
me an e-mail if I've forgotten you.  Sorry!

Rob





Date: Mon, 27 Jan 1997 11:53:44 -0400 (AST)
From: Jeannine Mosely <j9@concentra.com>
Subject: Re: Origami-L: Pentas AND Modules AND School

Rona writes:

   Steve Theil writes that he is interested in Bucky Ball modules.
   Well, there is one in "3D Geometric Origami: Modular Polyhedra"
   modules made from equilateral triangles.

   There is also one I believe, that makes nanotubes too, in COET
   Proceedings. Conference on Origami Education and Therapy Proceedings
   are available from OUSA.

What's a nanotube?

        -- Jeannine





Date: Mon, 27 Jan 1997 12:22:52 -0400 (AST)
From: Maarten van Gelder <M.J.van.Gelder@rc.rug.nl>
Subject: [NO] Missing messages (in the archives)

They (??) did it again: put me on postpone. I've subscribed on two accounts
on different systems. And they are both postponed on the same time. Of course
now I've set them back to ACK.

But the archives are missing messages from date January 15 up to and
including January 22. Anyone who saved these?

Maarten van Gelder,           Rekencentrum RuG,  RijksUniversiteit Groningen
M.J.van.Gelder@rc.rug.nl                         Nederland





Date: Mon, 27 Jan 1997 13:09:23 -0400 (AST)
From: Dan Johnson <D.Johnson@chemistry.leeds.ac.uk>
Subject: Re: Origami-L: Pentas AND Modules AND School

Jeannine writes.........

What's a nanotube?

Basically, a "nanotube" is a tube which is in the region of 10^-9 m across.
...the theorists reckon that it should be possible to first join two C60
 molecules together (making something which would resemble a Buckminster "egg"
I suppose..?) then adding more and more until eventually a tube-like structure
is formed.  It may have already been done??....This would open up endless
possibilities....nanometer machines, miniature communication networks...........

A good place to see one is at

http://mgm.mit.edu:8080/saito/nanotube.html

Laters...........Dan





Date: Mon, 27 Jan 1997 13:15:51 -0400 (AST)
From: GURKEWITZ@WCSUB.CTSTATEU.EDU
Subject: Re: Origami-L: Pentas AND Modules AND School

Jeanine asks what is a nanotube.

Well, as much as I know is that it is a tube like structure related
to the bucky ball. The one pictured in Coet goes up from a table and
bends around and comes down next to itself.

I did a search in the library a few years ago and as I remember there
are structures that start out as two bucky balls connected to form a
tube in the middle. I think nanotubes are extensions of this. I never
tracked down the polyhedral configuration that forms these tubes and
would be interested in learning of them. I think that they have
probably been published in some chemical education journal, because
the people who published in Coet are chemistry professors and they
told me they were publishe
ing the module, which I believe is Francis
Ow's, and an article about it.

Also, there are different forms of bucky balls. C60 is the truncated
icosahedron based form, but there are molecules made up of more carbon
atoms, like maybe 72, and even more, that I don't know what polyhedron
corresponds to them.

Rona





Date: Mon, 27 Jan 1997 13:34:36 -0400 (AST)
From: VVOrigami@aol.COM
Subject: Re: Origami-L: Pentas AND Modules AND School

"What's a nanotube"

If I recall correctly, it is a form of the buckyball family of
carbon molecules that is tubular rather than spherical.
It would look like a long tube made of chicken wire, with
mostly hexagons, rather than the hexagon and pentagon
mix that produces the closed "ball" forms like C60.

There are a couple of web sites (search on fullerene &/or
buckyball) with illustrations of the various forms. Some are
also sort of helical, suggestive of DNA... The pictures will
make your fingers itch to start folding modulars...

(No, Jeannine, not YOUR fingers; I know they're already
committed until the year 2005   :-)

--valerie





Date: Mon, 27 Jan 1997 17:21:48 -0400 (AST)
From: "ROSANNA M. FLICKINGER" <as365@traverse.lib.mi.us>
Subject: Re: Got Started letters

On Tue, 21 Jan 1997 DORIGAMI@aol.com wrote:

> Thank you for your great response on "How you got started letters"  I am
> saving them and will soon compile them for you.  But do continue sending them
> if you haven't already.  The more the merrier.  Knowing you origami ellers a
> little makes this all so much more fun.  Your friendly origamist, Dorigami.
>
My name is Rosie, and I got started with origami when I was about six.  A
japanese man visited our church and spoke about his culture.  A dinner was
held in his honor and each table had a different folded centerpiece scene,
I remember that the one on our table was a piano, I was completely amazed
by the folded paper piano.  The japanese man taught the older children how
to fold a crane and my sister, five years my senior spent many hours
folding tiny cranes from chewing gum wrappers and I was amazed.  That was
about 25 years ago in a small town in Michigans upper peninsula.  Now I
work as a Library Assistant in Childrens' Services I do three or four
origami programs each year through the library as well as lots of
enrichment programs through schools and privately.  I go through phases
where I fold like a maniac for several months and then let it rest,
because I know it will always be there.  Once I got in trouble with
origami.  I was in the fifth grade and had just learned how to fold a
jumping frog from a 3x5 card.  My friend and I were having a jumping
contest between desks, laughing hysterically....I spent the rest of the
afternoon in out in the hall writing "I will not fold juming frogs." 100
times...needless to say, I was not cured.
                     have a nice day,
                                    Sincerely, Rosie.





Date: Mon, 27 Jan 1997 23:22:16 -0400 (AST)
From: Kenny1414@aol.com
Subject: Re: [NO] Missing messages (in the archives)

I've got about 31 messages that I know of. How do you want them sent to you?

I'm using America Online, so all my mail seems to be in one big file in a
compressed format I can't break into. I can get at them one by one thru AOL.

Do you want me to try to cut-and-paste them into one long text file, and try
to send that as an attachment, or forward each one separately?





Date: Tue, 28 Jan 1997 04:41:10 -0400 (AST)
From: Kenny1414@aol.com
Subject: Re: 3x5 card modular deltahedra

To Jordi Mas Trullenque c/o origami-l

Please excuse me for answering in public, since the answers may be of
interest
to our friends. I apologize also for taking so long to answer. I've been
thinking.

In a private message dated 97-01-18 22:49:43 EST, you write:

<< I like your module, but it needs cards. With the kind of paper I use,
soft, it does not hold well together, and you cannot make icosahedrons.>>

Yes, permit me to suggest you try making the paper several layers thick.
That might increase the strength of your paper. Then again, maybe not.
But it's worth experimenting with.

<<  Do you know some simple modules for stella octangula in 12
 equal modules? I am not satisfied with my last attempt.  >>

I can offer this one.

"Blintz" a rectangle to get a two-triangle diamond with 4 flaps.
12 of these will (barely) hold together, to form a stella octangula.
But I need to use sticky notes to hold the pieces together,
until the last piece is in place.

Unfortunately, the flaps holding it together are on the outside,
and tend to open up slightly, detracting from the appearance.





Date: Tue, 28 Jan 1997 13:08:02 -0400 (AST)
From: Sheldon Ackerman <ackerman@dorsai.dorsai.org>
Subject: Re: [NO] Missing messages (in the archives)

Just received my copy of The Paper, the OrigamiUSA magazine.
You did a great job Charles (Knuffke)! Your article on Origami and the
Internet, as well as the Top Web Sites for Origami, is quite interesting and
informative. If it has not already been done, it would be a great idea to
have the article scanned and posted somewhere on the web for all to read.

--
Sheldon Ackerman.......http://www.dorsai.org/~ackerman/
ackerman@dorsai.dorsai.org
sheldon_ackerman@fc1.nycenet.edu





Date: Tue, 28 Jan 1997 13:13:00 -0400 (AST)
From: Sheldon Ackerman <ackerman@dorsai.dorsai.org>
Subject: Origami and the Internet

You'll all have to excuse me for not changing the subject in the last
message. My finger was a bit too quick on the Enter key :-)

--
Sheldon Ackerman.......http://www.dorsai.org/~ackerman/
ackerman@dorsai.dorsai.org
sheldon_ackerman@fc1.nycenet.edu





Date: Tue, 28 Jan 1997 14:15:32 -0400 (AST)
From: Lisa.Hodsdon/McDougal/hmco@Owl.nstn.ca
Subject: Origami in Orlando

I wanted to send a quick note of thanks to everyone who wrote
with suggestions of what to do/see in Orlando.

I was quite surprised by the extensive collection of papers and
books at the Japanese pavilion in EPCOT. I bought some paper
with Mickey & Minnie on it. I was hoping for something with
dalmation spots in honor of 101 Dalmations, but if it was there
I missed it. Yes, you can visit the store without paying to spend
the day---you have to pay for an admission ticket, but if you
return within one hour, you will get a full refund. (I didn't do
this, but several people told me that they have.)

I didn't do much folding (too busy) or enjoy much sun (it was
rainy and cold), but I had a great time all the same.

Lisa





Date: Tue, 28 Jan 1997 18:21:20 -0400 (AST)
From: casida@ere.umontreal.ca (Casida Mark)
Subject: Re: Origami-L: Pentas AND Modules AND School

Jeannine asks

> What's a nanotube?

Nanotubes are single molecules of carbon whose molecular
framework looks like chicken wire (fused hexagons), just
like the layers in graphite, except that the sheet is
folded back on itself and seamlessly fused to make a tube.
The result is a wonderfully flexible and strong molecular
wire (it conducts electricity) which has been used recently to
make superfine tips for scanning tunneling microscopy (big word)
which allow atomic-level imaging of surfaces with unprecedented
resolution.
  This reminds me a bit of looking through chemistry books
when I was a kid to find models I could build with my Dad's
molecular modeling kit.  I didn't understand much chemistry
back then, but I did learn a bit while playing.  It seems
as though you could do something similar with modular
origami and structures such as

     -> bucky ball
     -> nanotubes
     -> zeolites (crytalline structures with lots
                  of open holes inside)
     -> may be even quasicrystals ("crystals" with local
                  pentagonal symmetry which fill space but
                  have no long range order)

Does anyone know of origami used to teach chemistry?  I seem
to remember a Japanese colleague mentionning to me that his
chemistry teacher in Japan did something of the sort but I
really don't know any details.

                    So long,
                       Mark

--
*-------------------------------------------------------*
|          Mark E. Casida                               |
|          e-mail: casida@chimcn.umontreal.ca           |





Date: Wed, 29 Jan 1997 03:03:12 -0400 (AST)
From: Vincent & Veronique <osele@worldnet.fr>
Subject: ASCII diagram

Hello,

Here is a sample fold. I don't know who create this, and you ?

I cannot translate the next sentences (due to my poor english), could
you help me ?

Le but est de ranger les sacs de platiques pour faire les courses
  ____________
 |          __|   pliage en trois (ou 4) ds la grande longueur
 | - - - - |      en rouleau
 |         |
 | - - - - |__
 |____________|

 A____________
 | /          |    Le point A va sur la moitie de la grande longueur
 |/___________|

    B____________
    /\           |  Continuer a enrouler le long de AB, et ainsi
   /  \          |  de suite jusqu'au plus petit triangle
  / .=B0 A         |
 /.=B0_____________|

     ____
    /\   |  Coincer le petit bout restant
   /  \  |  dans la poche form=E9e de deux couches precedente
  /    \ |
 /______\|

    /\      pliage fini
   /  \
  /    \
 /______\

Vincent
 _______                                                     _____
|       | Osele Vincent (Toulouse/France) Membre du MFPP    /|    |
|       | osele@worldnet.fr                                /_|    |
|       | http://www.worldnet.fr/~osele/origami.htm       |       |
|_______| -----------------> ORIGAMI -------------------> |_______|





Date: Wed, 29 Jan 1997 03:56:27 -0400 (AST)
From: Jansill@aol.com
Subject: February in Manhattan

I'm going to be doing some work at a theater in NYC for the next five weeks
or so. (Peter and Wendy at the New Victory Theater. A very cool adaptation of
Peter Pan using Puppets in a sort of Bunraku style. I'll be playing Celtic
Harp and Guitar along with the Amazing Scots Fiddler Johnny Cunningham and
the Wondeful Irish Singer Susan McKeown) (Ok enough plugs!)

Well once we're up and running, I'll be spending a good bit of downtime and
was hoping to maybe catch up with some Origami stuff. (I've really been out
of touch with it for years, and even them I wasn't a big presence.) Is the
OUSA a place where one can visit? Are there any gatherings or anything like
that? Of course I'll be busy most evenings, but perhaps something can be
worked out.

I'm in rehearsal from Today (Wednesday) till Sunday and I won't be able the
get any E mail till then (Unless one of the other people at the play have a
way of letting me check) so if I don't respond right away to any messages,
please don't be offended! PLEASE E MAIL ME PRIVATELY because after four days
away, I probably won't read all of my digests.

If you're interested in the play, call the New Victory Theatre (On 42nd st) I
don't have a number on hand. It runs From Feb 6 to March 2.

Thanks

Jay Ansill
