HDTenEightyP/NetNews huggingface dataset:
From: pauls@mudskipper.css.itd.umich.edu (Paul Southworth)
Subject: Re: Aluminum's Lifespan
Organization: University of Michigan
Date: Thu, 13 Aug 1992 14:08:48 GMT

In article <1992Aug13.033852.24416@henson.cc.wwu.edu>  
n9110338@henson.cc.wwu.edu (dan jordan) writes:
> 
>   of course Cessna has been around for awhile, and they made Aluminum  
planes
> quite awhile ago.... just how easy is a c-140's life anyway?
>   (or any other early model aluminum plane)
> 
> my point is that the DC-3 is not the only old aluminum plane and some  
other
> planes are as old with-out the ad-infinity re-enforcement.

<I'M NOT REALLY RESPONDING TO DAN, JUST THIS THREAD>

This whole thread really illustrates how irrelevant an academic argument  
about the properties of a specific metal is to how well a bicycle will  
perform or how long it will last.  In the end it all comes down to design.   
One might say that a 6061 aluminum soda can may easily be squashed  
underfoot, and therefore a cannondale is flimsy (ignoring heat treating,  
of course, but how tough would a coke can be at T6?).  The whole thing is  
totally fallacious.  How tough an aluminum plane, or a bookshelf, or a  
walking stick is just cannot really pertain to how a bike will ride or  
last.

Moving back to bikes, "Cannondales are stiff; therefore aluminum is  
strong."  Gee, what would happen if we were to make that same bike with no  
top tube?  Would aluminum bikes suddenly be perceived as being very flexy  
and weak?  Fact is, Cannondales and most welded aluminum bikes ALREADY  
deviate from traditional design in a number of significant ways.  Of  
course the tubes are huge.  The joints are oversized as well.  The  
comparison is moot because we are not just comparing the material; you  
just cannot separate the issue of design out of the equation; when you do  
so, the whole thing becomes a vulgar question.  A FUNDAMENTALLY SOFT  
MATERIAL MIGHT MAKE A FINE BIKE IF ONE ALTERS THE DESIGN.
Newsgroups: rec.bicycles
From: thomas@bitrot.in-berlin.de (Thomas Driemeyer)
Subject: Re: Bicycle Paths
Summary: gas prices
Organization: Thomas Driemeyer, Berlin
Date: Thu, 13 Aug 1992 13:17:45 GMT

In article <1992Aug12.144724.26157@athena.mit.edu> aviator@athena.mit.edu (Joakim Karlsson) writes:
>I just want to say this: In most European countries, gasoline prices
>are on the order of 3-4 times as expensive as they are in the U.S.

One data point. Gasoline prices in Berlin:

	diesel:			DM 1.10 / liter ~= $2.85 / US gallon
	unleaded:		DM 1.38 / liter ~= $3.58 / US gallon
	unleaded high-octane:	DM 1.43 / liter ~= $3.71 / US gallon

Since the dollar has been in ruble-emulation mode for a while now, the
converted prices are unusually low. For a more realistic exchange rate,
multiply by 1.3 or 1.4. Leaded is more expensive than unleaded because
it has a higher tax, for environmental reasons.

Depending on who does the calculation, without all direct and indirect
subsidies gas would cost DM 5..9 per liter, or $13..$23 per gallon.

Thomas

--
Thomas Driemeyer      thomas@bitrot.in-berlin.de      voice/fax: +49 30 8924936
From: jwd@sunol.ced.berkeley.edu (John Wilbrand Dahlgren)
Newsgroups: rec.bicycles
Subject: Re: Drillium
Date: 18 Aug 1992 19:35:46 GMT
Organization: /etc/organization
NNTP-Posting-Host: sunol.ced.berkeley.edu

I had just finished drilling my water bottle and was going to start
on my tires, but the drill shorted out. Don't forget to empty
the water bottle first.
Newsgroups: rec.bicycles
From: tlt38517@uxa.cso.uiuc.edu (Terry Thiel)
Subject: Re: Gas subsidies and taxes (was Re: Bicycle Paths
Organization: University of Illinois at Urbana
Date: Mon, 17 Aug 1992 16:20:29 GMT

>Have any statistics that agree?
This guy is very wrong that most people didn't use mass transit.  In fact they
did.  Thats what trains and ships are all about.  Thats what the canals were
built for.  In fact what happened is that after WWII the Oil, Automobile and
runner industries got together and bought up all the bus lines and railroads
and closed them down.  They also convinced the government (through generous
"campaign contributions"/bribes) that we needed a super-highway system to
handle any necessary troop mobilizations against the Soviets.  Of course all
this was illegal so it's not surprising that a number of comapnies were
charged and brought before the supreme courts.  They got off with a small
fine.  One of those things the high school textbooks don't tell you about.
-Terry

>>In order for any progress to be made it will be necessary to retain a
>>good economy so that it can finance necessary changes. Massive tax
>>burdens on automobile drivers, no matter how well intentioned, will
>>only make matters infinitely worse.

>Not if those fees are linked with decreases in income taxes.  Not if
>those people use American produced buses and trains.  The car companies
>are already downsizing, automating, and relocating.  The vast majority
>of oil is imported already.  People are already losing productivity
>sitting in traffic jams and driving long distances.  Infinitely worse
>than this?

>Ken
Newsgroups: rec.bicycles
From: jackson@ponder.csci.unt.edu (Bruce Jackson)
Subject: Re: using presta tubes with a Schraeder wheel
Organization: University of North Texas, Denton
Date: Wed, 19 Aug 1992 15:14:38 GMT

In article <91APB3ZR@cc.swarthmore.edu> Glenn Stauffer <stauffer@cc.swarthmore.edu> writes:

>When it comes to the presta valve nuts, do you need two (one inside, one
>out) or only the
>one on the outside?

>Reason I ask is that my MB-2 wheels had two nuts - a flatted one on the
>inside and a
>knurled one on the outside.  I've since lost one of the outside nuts and
>wonder whether
>there is a particular reason that I should avoid riding without it?

I do not use any nut on my presta valves.  In the 5 years I worked in and
ran bike shops I never put these nuts on any bike I repaired except when
the customer insisted on them.  The only purpose I can figure that these
nuts could have would be to keep riders from ripping the valves off when
clumsily pumping the tire with a frame pump.

On the other hand, these nuts sometimes work loose and rattle.  Since one
of things I am neurotic about is rattles when I ride I eliminate as many
potential rattles as I can.

My opinion is that you do not need any valve nuts.

ride with the wind...

Bruce  -  jackson@ponder.csci.unt.edu
Newsgroups: rec.bicycles
From: javier@cs.toronto.edu (Javier Pinto)
Subject: vetta c2
Organization: Department of Computer Science, University of Toronto
Date: 13 Aug 92 16:19:57 GMT

I have a Vetta C2 computer (the gray one with yellow and red buttons,
cadence, etc.). The other day I managed to get pull off the cable from the 
cadence magnet. 

Questions: Anybody knows where to get new wiring?
           Would a mount for a newer vetta model work?

Thanks.
From: RADDAMSW@LIVERPOOL.AC.UK
Newsgroups: rec.bicycles
Subject: Re: MYTH or FACT:  Do bicycle helmets wear out from age?
Date: 18 Aug 92 09:16:58 GMT
Organization: University of Liverpool

In article <1992Aug17.214755.6722@iscnvx.lmsc.lockheed.com>,
bushnell@iscnvx.lmsc.lockheed.com (William D. Bushnell) says:
>
>I have heard from a variety of sources that the shock-absorbing styrofoam in
>bicycle helmets loses its ability to absorb the shock of impact as it ages.
>
>Since I have not seen any mention of this in published literature,
>namely the Consumer Reports May, 1990 article, helmet manufacturers'
>advertisements, and the rec.bicycles FAQ file, I am skeptical.
>
>Is there an article or study that examines the issue of "helmet rot", or
>should we add this myth to the list of Bicycle Lore?
>
>I ask this because I continue to use and to be happy with the only helmet I've
>ever owned: an aging, heavy, but uncrashed Bell helmet circa 1976.  Should I
>retire it and buy something safer, lighter and more :-) stylish?

Motorcycle helmet manufacturers and some users recommend you change your helmet
at least every five years or so, since the shell (plastic/fibreglass) can age
in sunlight and small defects can develop from general knocks and bumps. Bike
helmets are subjected to the same conditions, e.g. dropping it onto the floor
or into the car boot etc. so I guess we should be changing our helmets every
few years or so. Styrofoam is nowhere near as strong as platsic etc. and
there is also the problem of damage you can't see. I'll be changing mine soon
(It's around 3 years old and a bit battered).

You should *always* change your helmet after a major crash, even if it doesn't
appear damaged, if it hit the floor, it will be. Get a new one before it falls
apart in the next crash!!

Steve JW (MadBritishMountainBikerAndMaterialsScientist)
From: d3a132@pnl.gov (Carl P Baker)
Newsgroups: rec.bicycles
Subject: Re: indexed steering? (I think I broke something)
Date: 13 Aug 92 20:34:27 GMT
Article-I.D.: oracle.1992Aug13.203427.16449
Reply-To: d3a132@pnl.gov
Organization: Battelle Pacific Northwest Laboratories

In article AA15326@hplomg.hpl.hp.com, BRANDT_JOBST/HP1900_01@HPLOMG.HPL.HP.COM () writes:
>Carl Baker writes:
>
>> In the several years I spent working in a pro shop, I have never seen a
>> case of "index steering" (yes, we called it that) that was _not_ caused
>> by a "brinelled" headset - on with divots in the races.  I am 99.999
>> percent certain that that is your problem.  What are you going to do if
>> you don't fix it?  I suggest that you fix the headset even if you sell
>> the bike, as a damaged headset could be grounds for a lawsuit if the
>> buyer crashes.
>
>I disagree on two points.  First, because the use of the term brinelling
>conveys a notion as incorrect as the phrase "my chain stretched from
>climbing steep hills" and second, because there is no possibility of
>injury or damage from an "indexed" head bearing.
>
_Excellent_ description of "what causes the dimples" deleted.  I wasn't
actually thinking about the cause of the dimples, and "brinelling" is
(was?) a common term for them.

>design of the bearing but rather the type of lubricant used.  A ball bearing
>is not suitable for this use.  This is in spite of their use in almost all
Absolutely.  Ball bearings in headsets are wrong, wrong, wrong.

I wasn't actually trying to imply that a damaged headset could cause
a crash, just form the basis for a lawsuit.  The only way that I can
think of for a damaged headset to cause or contribute to a crash is
if it could be implicated in "shimmy", which is such a complicated
phenomenon that no one (except maybe Jobst ;-)) understands it
or how a headset could or could not participate.


Carl P Baker
cp_baker@pnl.gov
509-375-2724

Disclaimer: I am not the official spokesperson for anyone.  For which
organizations that use spokespersons are profoundly grateful.
Newsgroups: rec.bicycles
From: tan@lynx.msc.cornell.edu.UUCP (David Tan,Box 219 Baker Lab,54810,2720402)
Subject: Re: Descending hills
Originator: tan@msc2.msc.cornell.edu
Organization: Cornell-Materials-Science-Center
Date: Sun, 16 Aug 1992 17:57:12 GMT

From article <1992Aug14.102108.8273@vax.oxford.ac.uk>, by ftgcdj@vax.oxford.ac.uk:
> I heard a story about a guy in a road race being handed a water bottle full of
> lead (Pb) at the start of a long descent. Around 8kg (17.6 lbs) extra!
> 
I think this was in a TdF of many a year ago (was it Coppi?)  He was given a
leadfilled bottle by a "spectator", pretended to drink out of it, and pitched
it at the bottom of the descent, to another "spectator."

Wish I could remember details...

Dave

> One way to get your speed up, I suppose!
> 
> -------
> Charles
> 
> ftgcdj@uk.ac.oxford.vax
Newsgroups: rec.bicycles
From: miket@unislc.uucp (Michael Thompson)
Subject: Re. Max heartrates
Reply-To: miket@unislc.UUCP (Michael Thompson,B2C04,4560)
Organization: Unisys, Salt Lake City
Date: Fri, 14 Aug 1992 14:35:38 GMT


Pardon me for being naive, or possably ignorant, but exactly how does one 
calculate a maximum heart rate?  I'm 38 with a resting heartrate of 48.
Also what is the purpose(s) of having this information?

I'd appreciate any info that would enlighten me.  Thanks in advance.



      
Mike Thompson,                |    It's true, forgiveness IS easier
(801) 594-4560                |    to get than permission. ;-) 
unislc!miket                  |              -----------
miket@unislc.slc.unisys.com   |    My employer is profoundly grateful
                              |    that I speak only for myself.

                       |\/\/\/|
                       |      |
                       |      |      _________________________________ 
                       | (o)(o)     /                                  \
                       C     __)   |   Mike Thompson, who the hell      |
                       | ,___|  __/|              are you?              |
                       |   /        \__________________________________/
                      /    \
From: rpo@trsvax.tandy.com
Newsgroups: rec.bicycles
Subject: Re: Polar Elec. address needed
Date: 14 Aug 92 17:53:00 GMT
Nf-ID: #R:ohstpy.mps.ohio-state.edu:3136:trsvax:2600011:000:398
Nf-From: trsvax.tandy.com!rpo    Aug 14 12:53:00 1992


The address for Polar/CIC Inc. is:

		Polar/CIC
		99 Seaview Blvd.
		Port Washington, NY  11050

Their telephone numbers are:

1-800-262-7776
1-203-359-1966
1-516-484-2400

These are from my notes, and the last (area code 516) number
might be a correction for the area code 203 number.

Owner of a Polar CycloVantage...and I've never seen anyone else
with one.

Paul Opitz
Radio Shack Publications
Newsgroups: rec.bicycles
From: tomk@netcom.com (Thomas H. Kunich)
Subject: Blle' Prescription Inserts
Date: Fri, 21 Aug 92 17:50:12 GMT
Organization: Netcom - Online Communication Services (408 241-9760 guest)

In the Colorado Cyclist catalog there is the Bolle'
Prescription Inserts advertised for $9.95.

They are said to fit the Edge II.

On Wednesday we had a bicycle cop show up to give a
talk to our bicycle club. He was wearing Oakley
M-frames with the insert in them so I can attest
to the fact that they do fit Oakley as well as Bolle'.
From: egpv29@castle.ed.ac.uk (JHenderson)
Newsgroups: rec.bicycles
Subject: Re: all theat fat
Date: 17 Aug 92 13:25:18 GMT
Organization: Edinburgh University

In article <24884@castle.ed.ac.uk> cam@castle.ed.ac.uk (Chris Malcolm) writes:
=>
=>Fascinating. Not my field at all, just the interested owner of an
=>arterial system, but I've thought something similar for years, i.e.,
=>that the fatty plaque which builds up in arteries might well be a repair
=>mechanism gone wrong. The fatty plaque will have two properties, the
=>smoothing of imperfections, thus reducing likelihood of clots forming,
=>and the plugging of small leaks. Now it is well known that alcohol is
=>one thing that increases the permeability of capillaries, to the point
=>that repeated indulgence causes permanent damage (e.g. red face). It
=>might therefore increase the permeability of larger vessels too, causing
=>fatty repairs, or perhaps the system simply reacts to leaking vessels
=>anywhere by pumping up the blood cholesterol content. There are probably
=>many other substances besides alcohol which damage the blood vessels,
=>and this may be the root of the problem, rather than the fats.

The answer is clearly to finish off a good session at the pub by going
to the chip shop - a solution already known to the cognoscenti!!


-- 
==================================================================
-Jeremy Henderson            |  Une souris verte
 egpv29@castle.ed.ac.uk	     |  Qui courrait dans l'herbe
==================================================================
From: shenry@cs.rice.edu (Sam Henry)
Newsgroups: rec.bicycles
Subject: Re: Cycle Oregon (so who will be there?)
Date: 19 Aug 92 21:01:07 GMT
Organization: Rice University, Houston

>In article <1992Aug17.215149.13811@usenet.ins.cwru.edu>
cd674@cleveland.Freenet.Edu (Susan J. Christie) writes: 
>>
>>Here's another Cycle Oregon Rider!  ... See you on the ride!
>>Susan C.

In article <1992Aug18.160346.17192@cabezon.uucp> markco@cabezon.uucp
(Mark Collins) taunts: 

>... You'll recognize me pretty easily, I'll be the one with a 6-iron
>strapped to my top tube ...

>There are golf courses in every community except Chemult 
>and Prospect!! Heaven on wheels.

>Mark Collins

Might I suggest you try a 5 iron this year.   I think it will improve
your scores, especially on the greens.

-- 
sam henry <shenry@rice.edu>
Wanna ride?
From: dbe2@dcs.exeter.ac.uk (David Bennett)
Newsgroups: rec.bicycles
Subject: Re: Chainwheels probs I had...
Date: 15 Aug 92 10:33:01 GMT
Organization: Computer Science Dept. - University of Exeter. UK

A few days ago I posted that I was having problems w/ my front
chainrings, the chain getting stuck between them.  Anyway I was look
at the bike a few days ago in view of Eric (Preatzle) 's article about
the spider spacing, and I suddenly realized that the teeth on the ring
weren't in the middle, but indeed to one side of the centre.

  By turning the ring (that is the inner ring - you can't rotate teh
outer ring because of the doobry-whatsit that stop the chain going
between outer ring and crank ) the problem was solved.  It did mean
that the ring appears to be the WRONG way round, because now the
Campag markings are on the inside next the the frame as opposed to
being face out.

Hope this helps anyone else...

Thanks to all who also responded.

Dave

Ps. In syncro it should be LUNG-BUSTING and not some sort of broken
frame part. Apologies for other Tpyos!!

PPS. Claim for damaged wheels proceeding OK. Devon county council have
passed the letter on to their insurers.  I wait with baited breath..
-- 
| JANET  : dbe2@uk.ac.ex.dcs       | "I say what it occurs to me to say when  |
| UUCP   : dbe2@ex-dcs.uucp        | I think I hear people say things. More I |
| Undergrad @ University of EXETER | cannot say." HHGTTG Radio Scripts.       |
| Computer Science Dept. EXETER,UK | by D N Adams                             |
From: klinich@ohstpy.mps.ohio-state.edu
Newsgroups: rec.bicycles
Subject: Polar Elec. address needed
Date: 13 Aug 92 09:53:58 EDT

I need the address/phone number of Polar Electronics.  I have the old CIC
Heartwatch which I bought 5 years ago and it seems to have stopped working. 
And I can't find my owner's manaul.  Any assistance would be appreciated.
			
													Thanks
													  George

klinich@ohstpy.ohio-state.mps.edu

Newsgroups: rec.bicycles
From: praetzel@marconi.uwaterloo.ca (Eric Praetzel)
Subject: Re: Canada and Sports Eats
Organization: University of Waterloo
Date: Wed, 19 Aug 1992 12:09:09 GMT

In article <1992Aug14.074344.1@kean.ucs.mun.ca> mnewton@kean.ucs.mun.ca writes:
[lots of stuff deleted]
>Now the dept of health think that people might try to live off Power Bars!
>Evidently the bars contain a lot of vitamin A and this can be toxic in 
>large quantities.
  Well since I have some of the contrabad substance here I thought I would
check it out.  According to the wrapper these bars are 100% of US RDA for a
lot of nutrients and are < 2% of RDA for Vit. A (dito for Vit. D).  In no
case is it in excess of 100% of US RDA.  The only exception is chromium and
that is because there is no established RDA.
  Personally I think that they did it because the label was not in French.
We had that in Toronto last year when shops had to take British candies off
the shelves because the labels were not bilingual.  I have never had any
problems buying German items but maby they don't count because not one bit of
the label is in English.
  - Eric 
//  When all else fails read the index or verify suppositions.
From: gt4650c@prism.gatech.EDU (Tim Anderson)
Newsgroups: rec.bicycles
Subject: Panniers
Date: 14 Aug 92 18:30:27 GMT
Organization: Georgia Institute of Technology

I'm looking for a rear pannier or front/rear pannier that is large enough
to fit a good sized 3-ring binder.  I borrowed catalogs for Nashbar and
Performance.  Their panniers have some measurements but it's not clear if
they will fit.  

Nashbar's Cycling Attache also seems interesting but I don't know how 
well it would work and if you can put a big 3-ring binder inside it.

Anybody have any advice on these bags:
Nashbar   NA-FP   Front/rear panniers  -  Looks a little narrow
          NA-RP   Deluxe rear panniers -  Angle cut might make make too small
          NA-AC   Cyclist attache      -  Might work but will still need 
                                          another bag for general hauling
          NA-RT   Rack packer          -  Too small for 3-ring but big
                                          enough and strong enough for texts?

Performance's catalog had similar stuff but they seemed to be a tad smaller
and a little more expensive.  

Any comments or recommendations for other bags would be much appreciated.

I hope to be able to use the bags for commuting back and forth to campus,
tennis matches, and occasionally picking up a loaf of bread/milk/etc.

Thanks,


Newsgroups: rec.bicycles
From: cs_jh@cox.nsac.ns.ca (JEFF HOYLE)
Subject: Re: Reorganization
Organization: Nova Scotia AC
Distribution: na
Date: Mon, 17 Aug 1992 12:59:24 GMT

In article <6548@tekig7.PEN.TEK.COM> jmyers@tekig7.PEN.TEK.COM (Jonathan E Myers) writes:

>I think that the reorganization is good.  It will be nice to have fewer articles
>to wade through.  

>               Jon myers
I agree with this sentiment.  Hopefully we can be a little more choosey with 
what we read.  At least we will not have to take time scanning titles in 
other sections.

Jeff Hoyle
  ***********************************************************
  * Dr Jeff Hoyle (Organic Chemist)                         *
  * Chemistry and Soil Science Department                   *
  * Nova Scotia Agricultural College    FAX: (902)-895-4547 *                     *
  * P.O. Box 550, TRURO,              Voice: (902)-893-6630 *
  * Nova Scotia. CANADA  B2N  5E3                           *  
  *                  -----------------                      * 
  * Internet: cs_jh@cox.nsac.ns.ca  OR  jh_cs@ac.nsac.ns.ca *
  ***********************************************************
Newsgroups: rec.bicycles
From: ekp@mcnc.org (Edward Pavelchek)
Subject: Re: VO2 max (was Re: Heart Rate Survey: Results)
Organization: Good place for a disclaimer
Date: Fri, 21 Aug 1992 22:40:24 GMT

In article <1992Aug21.121417.6321@mic.ucla.edu> scott@eggneb.astro.ucla.edu (scott evans) writes:
>>>I'm particularly curious about this because I recently had my VO2 max
>>>calculated based on 85% of my max heart rate, where max heart rate is
>>>220 - (my age).  This worked out to about 162.  I didn't believe the
>>>results, so I went and sustaind a heart rate of over 180.  What does
>>>this tell me?
>The value which you were quoted was your anaerobic thresshold (AT) and
>not your VO2 max.  The VO2 max is your maximum ability to take in oxygen
>85% of your maximum heart rate and still be aerobic.  This number is
>unusually high.

Although I wasn't there, of course, another likely explanation is this:

Since getting people to work at vO2max is difficult, and accompanied by
a not insignificant chance of heart problems in the general aged
population, an approximate test is sometimes used.

The old 220-age formula is used to predict the subject's max HR.
He is then exercised until a reasonably high fraction (say 85%) of this
predicted number is reached.  The VO2 is measured, and extrapolated 
to the *supposed* HRmax.  It's less accurate, but safer, than a true
VO2 max test.  

He should have received a number such as 4.2 l/min, or 56 ml/kg min for
VO2 max, however.

-- 
Ed Pavelchek   ekp@mcnc.org
But I make a profit of 3 1/4 cents an egg by selling them for 4 1/4
cents an egg to the people in Malta I buy them from for 7 cents an egg.
Of course, *I* don't make the profit.          Joseph Heller, Catcha 22
Newsgroups: rec.bicycles