HDTenEightyP/NetNews huggingface dataset:
From: asente@adobe.com (A Usenet Pal)
Newsgroups: rec.folk-dancing
Subject: Re: Square Dance Algebra
Date: 26 Jan 93 21:19:47 GMT
Organization: Adobe Systems Incorporated

In article <1993Jan26.184349.5036@adobe.com> I wrote:
>The best I can do is 7, and involves no calls above Advanced.  If you remove
>the "no modifiers" rule you can get 4.

How embarassing.  My 7 point solution doesn't work; a variant does, but uses 9.

Another interesting question is "How few total calls can you get away with?"
Limit the world of discourse to Advanced and lower.  The best I can do it
with is 3.

__   -paul asente
\/     asente@adobe.com   ...decwrl!adobe!asente   moo-bear@cs.stanford.edu

...suddenly a footman in livery came running out of the wood (she considered
him to be a footman because he was in livery:  otherwise, judging by his face
only, she would have called him a fish)
Newsgroups: rec.folk-dancing
From: jb@world.std.com (Joel L Breazeale)
Subject: Square Dance (WSD) and Contras in Finland
Organization: The World Public Access UNIX, Brookline, MA
Date: Sat, 23 Jan 1993 07:07:57 GMT

A friend has a brother in Finland and is wanting to find club/modern western
square dance groups over there.  I figure contra dance groups would be good too.
He's located in Turku (please don't consider this to be a major restriction).

Any ideas?  Thanks in advance for any help!  Replies via e-mail please!

--Joel Breazeale
jb@world.std.com
Newsgroups: rec.folk-dancing
From: jcvg0823@uxa.cso.uiuc.edu ( Joel VanderZee )
Subject: WSD:  Re: Rotating Partners During Teaching
Organization: University of Illinois at Urbana
Date: Fri, 22 Jan 1993 20:41:08 GMT
Keywords:  WSD

fred-mckenzie@ksc.nasa.gov (Fred McKenzie) writes:
>According to my old Square Dance instructor,

   I'm not responding directly to the referenced article, but it brought
to mind some comments that I'll set out for discussion.

   My first thought is that rotation is "built in" with square dancing.
Even couples that square up together end up learning and practicing the
calls with the different people in their square for that tip.

   On the other hand, in general those few couples that come to lessons
tend to be outshined by the performance of single students.  (Of course,
that is merely based on my quite limited experience.)  My assumption,
however, is that one of the two in those couples is not really
enthusiastic about learning.  Rotating partners might keep some of them
from attending; a few people might call that a good thing. 

   Since the primary purpose, experience with different people, does not
necessitate rotating partners in square dancing, I would not confuse my
sympathy for some people with support for a mandatory rotation policy.
Those couples that would have gone home mad at each other from the old
instructor's class have my sympathy.

   Those who know me might be surprised by this opinion because I'm a
great advocate of order.  (I prefer parties to have activities planned,
for example.)  Rotating doesn't prevent people from showing preferences,
though, and I wouldn't feel the gratitude I do to those who came to
angel when I was a student if they had not been dancing with me of their
own volition.

 +---+
 | +-|-+   Joel VanderZee (AA9FO)
 +-|-+ |   jcvg0823@uxa.cso.uiuc.edu
   +---+
Newsgroups: rec.folk-dancing
From: fy@lucid.com (Frank Yellin)
Subject: Re: Square Dance Algebra
Organization: Lucid, Inc., Menlo Park, CA
	<1jpvatINNih5@roundup.crhc.uiuc.edu> <30127@oasys.dt.navy.mil>
	<1993Jan26.184349.5036@adobe.com> <C1ItHC.145@ulowell.ulowell.edu>
Date: 27 Jan 93 12:16:14


|> Give each call a point value corresponding to its level.  A Basic call is one
|> point, Mainstream 2, Plus 3, Advanced 4, C1 5, C2 6, C3 7, C4 8.

After a little bit of work, I've managed to get it down to the following
three calls:   

             swing-thru           Mainstream = 2
             in-roll circulate    Advanced =   4
             u-turn back.         Basic =      1

> Another interesting question is "How few total calls can you get away with?"
> Limit the world of discourse to Advanced and lower.  The best I can do it
> with is 3.

I can prove that three is the minimum.  Warning, the following proof uses
elementary group theory.  

Every wave->wave call can be broken down into the following three steps:

    (1) Perform a 4-person (element of S4) permutation on each wave.
    (2) Swap zero or more dancers with their opposites.
    (3) Optionally invert the "mirror" bit, indicating a left-hand wave and
        that everything should be looked at in the mirror.

Each of (1), (2), and (3) has a parity.

    (1)  Is the permutation even or odd.
    (2)  Is the number of dancers swapping even or odd?
    (3)  Is the bit unchanged or changed?

Note that even though (1) and (2) do not commute with each other, their
parities do.  And (3) is completely independent.  

So 2 x 2 x 2 is a subgroup of the group of all call transformations.  And
2x2x2 cannot be generated by two elements.

-- Frank Yellin
   fy@lucid.com

Newsgroups: rec.folk-dancing
From: bwalls@eng.auburn.edu (Bryan K. Walls)
Subject: Re: It's Announcement Time!
Organization: Auburn University Engineering
Date: Sat, 23 Jan 1993 08:39:29 GMT

In article <18009@pitt.UUCP> Erna-Lynne.Bogue@um.cc.umich.edu writes:
>Most contra and English dances have an announcement time. In my travels
>I've found this to vary in length, in number of people making the 
>announcements,  in detail-level of the announcements, in what kind are
>made (just dance vs song vs music vs need/give rides to events) etc.
> 
...stuff deleted
> 
>So we reach my questions:
> --  do you have announcements at  your dances?
> --  how long do they take?
> --  who makes the announcements?
> --  what format do you use?
> --  what reaction do you get from the dancers?
> --  what's your own opinion about announcements?

Yes, we have a short announcement time after the break. The caller gets
everyone into position for the next dance, gets up like he is ready to 
teach, and sneaks them in. Announcements are short, and usually made by
the caller, though anyone who has a detailed announcement can come up and
he will give them the mike. Some folks listen, some don't, but it's usually
better than while trying to teach a dance (low roar). I think they are
necessary, and especially like the one about subscribing to the newsletter,
since I do ours. :)

Bryan Walls
bwalls@marvin.msfc.nasa.gov
North Alabama Country Dance Society
From: asente@adobe.com (A Usenet Pal)
Newsgroups: rec.folk-dancing
Subject: Square Dance Algebra
Date: 26 Jan 93 18:43:49 GMT
Organization: Adobe Systems Incorporated

In article <30127@oasys.dt.navy.mil> rcheng@oasys.dt.navy.mil (Raymond Cheng) writes:
>    But Mary, square dancing is quite mathematical.  Did you know that
>
> * relay-the-deuces is a point-symmetrical call?
> * square thru is eqiuvalent to quarter out?
> * load-the-boat is a line-symmetric call + quarter in?

Ok, time for some fun square-dance dweebery.

Give each call a point value corresponding to its level.  A Basic call is one
point, Mainstream 2, Plus 3, Advanced 4, C1 5, C2 6, C3 7, C4 8.

Find the set of calls, sufficient to convert any symmetric parallel wave
formation into any other symmetric parallel wave formation, that has the
smallest sum.  You can't leave waves (i.e. sequences of calls that move you
out of waves and then back into them are not allowed) and you the calls must
not be modified (i.e. no "ladies trade" or "ends trade").

The best I can do is 7, and involves no calls above Advanced.  If you remove
the "no modifiers" rule you can get 4.

__   -paul asente
\/     asente@adobe.com   ...decwrl!adobe!asente   moo-bear@cs.stanford.edu

I don't think I could dance for 8 or 10 minutes straight.
						-Dave Decot
From: fy@lucid.com (Frank Yellin)
Subject: Re: Square Dance Algebra
Organization: Lucid, Inc., Menlo Park, CA
	<1jpvatINNih5@roundup.crhc.uiuc.edu> <30127@oasys.dt.navy.mil>
	<1993Jan26.184349.5036@adobe.com> <C1ItHC.145@ulowell.ulowell.edu>
	<FY.93Jan27121614@hardwick.lucid.com>
Date: 27 Jan 93 15:05:04

At Paul Asente's request, I think I can simplify my previous proof.
There's only one piece of group theory that you'll have to except on faith.

For every wave -> wave call, collect the following pieces of information.

    1) Look at one wave.  [This is the hard one.]  Pretend that each person
and his/her opposite are the "same."  Is the call an "even permutation" or
an "odd permutation".  A permutation is even if it can be replaced by an
even number of <switch two people> operations.  Similarly for odd.  You can
prove that every permutation is either "even" or "odd", but cannot be both.

   2)  How much pairs of dancers get swapped between the waves?  Just
remember if it is even or odd.

   3)  Does it switch left- and right-handedness or not?

I'm arbitrarily saying that you apply rules #1 and #2 to left-handed waves
by looking at the wave in a mirror.  This is purely arbitrary.  Other
methods work. 

Now image you have a penny, a nickel, and a dime.

For every move, 
  
    1)  If it's an odd permutation, turn the penny over.
    2)  If it swaps an odd number of dancers, turn the nickel over.
    3)  If it switches handedness, turn the dime over.

For example:

    swing thru:        turn the penny over.
    in-roll-circulate  turn the penny and nickel over
    u-turn-back        turn the dime over
    swing-chain-thru   turn the penny and the nickel over

Every move can be "summarized" by which coins it turns over.

With just two moves, you can't possibly get all eight coin orientations.

-- Frank Yellin
From: allemang@lia.di.epfl.ch (Dean Allemang)
Newsgroups: rec.folk-dancing
Subject: Contra dancing in Boulder, CO.
Date: 21 Jan 93 13:04:20 GMT
Organization: DI-LIA -- Ecole Polytechnique Federale de Lausanne


I have some friends who just moved to Boulder, CO.  From what I recall
of Boulder, they have landed in the center of Western Square Dance
Land, and will certainly have no trouble finding such groups.  Are
there any other dance groups in Boulder?  The group they came from
here in Zurich does mostly contras, but I would like to talk them into
trying English Country dance, too.  Are there any such groups that
meet on a regular basis in Boulder and environs?

Thanks,

Dean

allemang@lia.di.epfl.ch
From: nmstough@uci.edu (Neal Stoughton)
Subject: Merlin
Newsgroups: rec.bicycles.marketplace
Organization: UCI Grad School of Mgmt
Date: 21 Jan 93 23:08:02 GMT

Is there anyone who has had experiences with the Merlin frame?  How does it 
perform?  Is it possible and cheaper to buy directly from the frame 
builder?  Thanks for the info.
From: bill@maple.circa.ufl.edu
Newsgroups: rec.bicycles.marketplace
Subject: TREK FRAME
Date: 28 Jan 93 18:51:03 GMT
Reply-To: bill@maple.circa.ufl.edu
Organization: Center for Instructional and Research Computing Activities

I am selling a brand new Trek 1200 aluminum road bike frame- 56cm.
Wholesale cost is about $250 so I'm selling it for $250.  E-mail 
any questions to BILL@circa.maple.ufl.edu or call (904) 373-5351.
The frame is white and I'll throw in Bars and a stem.  It has never
been built up. for an extre $15 I'll U.P.S it almost anywhere.
If you call, ask for Brendan.
Newsgroups: rec.bicycles.marketplace
Subject: Want used tandom $300 range, Indiana
From: idqm400@indyvax.iupui.edu
Date: 22 Jan 93 13:55:35 -0500

I am looking to purchase a used tandom bicycle.  (Indiana or close)
I am not looking for an expensive bicycle....just one the kids 
and I can ride.  (Must have at least 10 speads)

I am looking for used in the $300 range and will pick up/pay cash.

Let me know if you know of one.

Dale Marmaduke
idqm400@indyvax.iupui.edu

Newsgroups: rec.bicycles.marketplace
From: neilm@juliet.ll.mit.edu ( Neil Mager )
Subject: Racer Mate Wind Load Simulator
Organization: M.I.T. Lincoln Lab - Group 43
Distribution: rec
Date: 27 Jan 93 11:01:43


        I have a Racer Mate Wind Load Simulator for sale. Its one
        of those squirrel cage fan gizmo's that increases
        resistance as you pedal faster. Some of the trainers use
        these for resistance. This particular model mounts to the
        seat post of the bike and is held against the rear tire.
        So its is good for using on trainers or rollers if you
        want more resistance. It is also easily removed (a small
        bracket stays on the seat post), so you can use your bike
        without it.

        It is several years old but has seen very little use.


        $85.00 includes shipping. Comes with all the original paperwork.
--
===============================================================================
Neil M. Mager
MIT Lincoln Laboratory       Lexington, MA
  Weather Radar - Group 43

Internet                    <neilm@juliet.ll.mit.edu>
Voice                       (617) 981-4803
===============================================================================
From: sjm3@ns1.cc.lehigh.edu (SALEM JON MAZZAWY)
Newsgroups: rec.bicycles.marketplace
Subject: Re: Road Cranks with a Granny Gear
Date: 26 Jan 93 18:39:36 GMT
Organization: Lehigh University

In article <1993Jan25.220025.3366@ucsu.Colorado.EDU>, berliner@ucsu.Colorado.EDU
 (BERLINER MARTIN) writes:
>Posted for a friend --
>
> I am looking for a crankset that is drilled for road rings and will also
>allow the addition of a granny gear (in a pinch a MTB crankset will do but
>I am suspect of the strength of a 53 ring drilled for the smaller bolt
>circles.)  What is available here?  And one other thing; the cranks have
>to come in 165 mm lengths.

Mavic cranks are supposed to be able to take a granny gear.   At such a
quality price point 165's should be availible although not many would stock it.
                                                    Salem
Organization: City University of New York/ University Computer Center
Date: Wednesday, 27 Jan 1993 11:19:15 EST
From: <H97SI@CUNYVM.BITNET>
Newsgroups: rec.bicycles.marketplace
Subject: Cinelli bars for sale

hello out there in cycle land,  i have a pair of handlebars that are just sitti
 in my closet looking for a bicycle to sit upon.  it is the model 64 cinelli's
the width of them is 42  (i.e. 64-42).   the bars are basically new  they were
on my cannondale for less than two weeks.  if you are interested in them  send
e a note   and  a price
mike
p.s. there are basic scratched underneath the handlebars from when it was beein
being put into the stem    oh yes  i forgot to mention   it is a handlebar/stem
combo   i will not split them up.   again, if you are nterested or confused
because i certainly am    buzz me
mike
Newsgroups: rec.bicycles.marketplace
From: lind0014@student.tc.umn.edu ()
Subject: Re: Is there a list of '93 bikes?
Organization: University of Minnesota
Date: Sat, 23 Jan 1993 00:54:52 GMT

In article <C19DpL.ICq@cs.uiuc.edu> tthiel@cs.uiuc.edu (Terry Thiel) writes:
(re the Feb 1993 Bicycling list of bikes)
>
>Keep in mind that the prices listed here are usually not very accurate since
>Bicycling probably made this list 3 months ago.  Bicycle Guide also has an
>annual Bike Guide which is much more thorough and informative.  Since they
>have new ownership I don't know if there will be one for 93 though.

Probably as useful as the list of prices is a table that they made of
gruppos and what price range bikes they are mounted on.  This is probably
pretty much taken from their table of 1,000,000 bikes, but it's much
easier to read and can tell you at a glance about what level bike you can
get for what kind of money. 

Chris Lindensmith
lind0014@student.tc.umn.edu
University of Minnesota
Newsgroups: rec.bicycles.marketplace
From: tthiel@cs.uiuc.edu (Terry Thiel)
Subject: Re: Shimano taking over...:-(
Organization: University of Illinois, Dept. of Comp. Sci., Urbana, IL
Date: Tue, 26 Jan 1993 14:03:32 GMT

davem@rose.hp.com (David Malicoat) writes:
>It appears that they are eliminating the DX and LX series for the new
>series LX ( or I have heard it called LXi ).   Noone has started selling
>LXi components yet, but why sell it when you have to dump (err.. sell) 
>existing LX and DX stock.  
>Since all of the '93 bikes have the new LXi stuff on them in 3-6 months
>the catalogs will probably start carrying the new components.  Until
>then, there are some great deals on DX components.

DX has not been eliminated.  The old LX has.  There are plenty of 93 bikes
with DX components.  Bridgestone, GT, and some other companies are specing
DX and XT on some of their bikes.  Someone did say that DX will be eliminated
next year (1994) but I don't know about that for sure.
-Terry
-- 
-Terry
Newsgroups: rec.bicycles.marketplace
From: ezag637@chpc.utexas.edu (Steve Manifold)
Subject: Re: WD-40
Organization: The University of Texas System CHPC
Date: Thu, 28 Jan 93 19:22:36 GMT

In article <1993Jan28.185309.18688@jupiter.sun.csd.unb.ca>, jkellett@mta.ca writes:
> IT WORKS FINE ON CHAINS AND DERAILLEURS WITH ONE DRAWBACK
> WHEN DIRT HITS A CHAIN WITH WD-40 ON IT, IT STICKS 
> THIS HAPPENS WITH EVERY LUBE I'M FAMILIAR WITH
> THE DIFFERENCE COMES CLEAR WHEN YOU CLEAN YOUR BIKE; WD-40 IS NOT WATER 
> SOLUBLE AND THEREFORE DOES NOT COME OFF WITH WATER. A TENACIOUS OIL,
> LIKE PHIL WOOD, DOES. YOU JUST SPRAY IT OFF.  THE OIL GETS WASHED OFF, BUT SO
> DOES THE DIRT.  ITS A SIMPLE TASK TO APPLY MORE OIL  AND YOUR CHAIN A COGS 
> STAY A LOT CLEANER.

You don't have to yell - we're not deaf ya know.

-- 
_______________________________________________________________________________
Steve Manifold                                              University of Texas 
ezag637@hermes.chpc.utexas.edu                           College of Engineering
tasc637@crovax.cem.utexas.edu                       Center for Electromechanics
Newsgroups: rec.bicycles.marketplace
From: tomk@netcom.com (Thomas H. Kunich)
Subject: Re: Night Sun Problems?
Organization: Netcom - Online Communication Services (408 241-9760 guest)
Date: Fri, 22 Jan 1993 21:38:01 GMT

In article <107940@bu.edu> mkary@math.bu.edu (Michael Kary) writes:
>
>
>One thing that may or may not be relevant to the problems with short
>bulb life (I don't use a Nightsun so I'm not sure): halogen bulbs have to 
>be handled with great care. You aren't supposed to let your fingers touch
>the glass; use a tissue or a clean cloth. I'm not completely sure why-
>presumably something to do with skin acids making hot spots- but that is the
>way you are supposed to handle them.

Those of us who have had the misfortune of having to use kerosene lanterns on
occassion in cold country can tell you that a spec of black soot on the glass
will cause a large temperature gradient across the glass and cause the cover
to shatter. Fingerprints on haolgen bulbs are the same thing. The Halogen burns
so hot that the fingerprints absorb enough heat to be much hotter than the
surrounding bulb and 'clink' it breaks.


Newsgroups: rec.bicycles.marketplace
From: jkellett@mta.ca
Subject: WD-40
Reply-To: jkellett@mta.ca
Organization: Mount Allison U, Sackville, N.B. Canada 
Date: Thu, 28 Jan 1993 18:53:09 GMT

IT WORKS FINE ON CHAINS AND DERAILLEURS WITH ONE DRAWBACK
WHEN DIRT HITS A CHAIN WITH WD-40 ON IT, IT STICKS 
THIS HAPPENS WITH EVERY LUBE I'M FAMILIAR WITH
THE DIFFERENCE COMES CLEAR WHEN YOU CLEAN YOUR BIKE; WD-40 IS NOT WATER 
SOLUBLE AND THEREFORE DOES NOT COME OFF WITH WATER. A TENACIOUS OIL,
LIKE PHIL WOOD, DOES. YOU JUST SPRAY IT OFF.  THE OIL GETS WASHED OFF, BUT SO
DOES THE DIRT.  ITS A SIMPLE TASK TO APPLY MORE OIL  AND YOUR CHAIN A COGS 
STAY A LOT CLEANER.
From: ledzep@cbnewsh.cb.att.com (carl.w.muhlhausen)
Subject: Re: Night Sun Problems?
Organization: AT&T
Date: Mon, 25 Jan 1993 20:15:54 GMT

In article <107940@bu.edu> mkary@math.bu.edu (Michael Kary) writes:
>
>
>One thing that may or may not be relevant to the problems with short
>bulb life (I don't use a Nightsun so I'm not sure): halogen bulbs have to 
>be handled with great care. You aren't supposed to let your fingers touch
>the glass; use a tissue or a clean cloth. I'm not completely sure why-
>presumably something to do with skin acids making hot spots- but that is the
>way you are supposed to handle them.
>
>Michael Kary  mkary@math.bu.edu
>
>

The replacement bulbs come with a plastic tube you place over the
bulb before trying to insert the two skinny wires into the two
little holes deep in the back of the socket all the while hoping
you don't drop the the bulb and waste your $13. The instructions
are pretty clear about not touching the bulbs.

"like trying to separate fly s**t from pepper while wearing boxing 
  gloves....."

Carl

Carl Muhlhausen		"Kum wit me iff you vant to liff"
att!taz!ledzep		 
Newsgroups: rec.bicycles.marketplace
From: paul@panix.com (Paul Gatker)
Subject: Jack Taylor Chrome Track Frameset
Date: Thu, 21 Jan 1993 05:10:54 GMT
Organization: PANIX Public Access Unix, NYC

 I have a Jack Taylor all chrome track frameset for sale w/Campi bb & headset.



 Size is 24.5" center to center.



 Includes Campi Record Pista 170mm crankset/bb w/ 47 & 52 tooth track plates.



 Also a Japanese seatpost and a few rear cogs included.



 Asking $450. for above.





 Additionally, a set of Record 36 hole track hubs with factory original

 quick releases (pursuit wheels?).



 Asking $50.00





 I was going to assemble this but decided to stick to road bikes and running

 shoes instead.



 Paul Gatker





-- 
*******************************************************************
paul@panix.com                                    COMPULITE GRAPHICS
Brooklyn NY usa                                Design & Consultation
********************************************************************
Newsgroups: rec.bicycles.marketplace
From: haker@whitewater.chem.wisc.edu (Michael Haker)
Subject: Wanted: Older Cannondale racing bike
Organization: Physical Sciences Lab, UW-Madison
Date: Sun, 24 Jan 93 20:27:26 GMT

I'm interested in buying a used Cannondale racing bike (1987-now).  I'd  
like one mainly for the older criterium style frame, which I plan to  
upgrade with newer components as funds permit.  I need a  54cm frame.  I'd  
prefer a Shimano 105 equiped bike (to keep costs down, new the 1989 105  
bike cost about $400 which I would buy for $300).  

Direct responses to

haker@whitewater.chem.wisc.edu


Mike Haker
Newsgroups: rec.bicycles.marketplace
From: reedm2@aix.rpi.edu (Matthew Reed)
Subject: Help - MTB bar grips slip off when wet!
Organization: Rensselaer Polytechnic Institute, Troy, NY
Date: Fri, 29 Jan 1993 03:37:06 GMT


Hey all you veteran mountain bikers -                    
 
I bought a nice AlpineSTars CROmega DX a few weeks ago
and I've been having fun riding it through all the
mud and rocks and streams I can find around here,
but lately my grips have been slipping off the handlebars
at the most ROTTEN times - like when I'm leaning real hard so 
I end up putting my face in a rock or something... 
 
ANy suggestion for keeping the grips on? They stay fine
when they're dry, but staying dry ain't so easy.

They're those funky feelin hex grips, btw.
Any info will be appreciated

PS I'm looking to buy a roof rack for a VW quantum
anybody wantin to get rid of one please mail me

THANKS L8r    - matt


/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
Hands all over the coastal waters    |  Matthew Reed
The crew men thank her               |  reedm2@rpi.edu
Then lay down their oily blanket     |  Rensselaer Polytechnic
Hands all over the inland forest     |  Bite the Bullet, World
In a striking motion trees fall down |/\/\/\/\/\/\/\/\/\/\/\/\/\ 
Like dying soldiers       -   S  O  U  N  D  G  A  R  D  E  N
\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/