what is wrong with this label?
jim beam
10 points for the correct answer.
Andre Jute
> http://www.flickr.com/photos/38636024@N00/3148123231/
>
> 10 points for the correct answer.
8 bars is 116psi, not 177psi. -- AJ
landotter
Obvious since the rated pressure goes down with tire width. Label is
from a Mavic CXP22. Even the one on their site is wrong. I believe
that's some more of that European Mystique--in line with the inability
for mortals to find recommended spoke tensions for their fromagey
extrusions.
Nate Nagel
yup, could result in blow-up-in-your-faceilarity... sheesh
Hopefully most people are smart enough not to blow up a bike tire to 177
PSI, but there's a reason behind every warning label...
nate
--
replace "roosters" with "cox" to reply.
http://members.cox.net/njnagel
jim beam
we have a winner.
jim beam
maybe its because the french write their 1's like 7's, and their 7's like
t's. damned confusing to the rest of the world.
besides, youda thought someone would have noticed by now.
Mike Jacoubowsky
> 177 PSI, but there's a reason behind every warning label...
>
> nate
I think it more likely a smart person wouldn't be trying to blow up a
tire in the first place. But if they were, 177psi might be about
correct.
--Mike Jacoubowsky
Chain Reaction Bicycles
www.ChainReaction.com
Redwood City & Los Altos, CA USA
"Nate Nagel" <njn...@roosters.net> wrote in message
news:gjbno...@news3.newsguy.com...
jim beam
i should add, that with rounding, 8 bar is 117psi.
Nate Nagel
I always cross my sevens. Got into the habit after losing points on
interminable problem sets in college where I'd do everything right but
confuse a "1" with a "7" because I was in a hurry, it was late, I was
tired etc. Once you start crossing your sevens that is no longer an issue.
Andre Jute
8 bar is 116.03019005916347psi, rounds to 116. But this possibly
explains how the major error happened. The other number there is 10
bar which is 145.03773757395433psi and they typed it as 146, a
displacement of one key from 5 to 6. It isn't a rounding error but a
typing error. The 177 is two typing errors in one blow: instead of 116
the fingers wanted to type 166 but because the hands were already in
the wrong position they typed 177 instead.
Andre Jute
Typewriter forensics a specialty
jim beam
otoh, if you use mavic's number for 10bar, * 8/10 = 116.8
that rounds to 117. that way, only one digit is corrupted by a noisy fax,
not two.
Tom Sherman
> Andre Jute wrote:
>> On Dec 29, 10:54 pm, jim beam <spamvor...@bad.example.net> wrote:
>>> http://www.flickr.com/photos/38636024@N00/3148123231/
>>>
>>> 10 points for the correct answer.
>>
>> 8 bars is 116psi, not 177psi. -- AJ
>
> yup, could result in blow-up-in-your-faceilarity... sheesh
>
> Hopefully most people are smart enough not to blow up a bike tire to 177
> PSI, but there's a reason behind every warning label...
>
road clinchers I can think of off hand are certain Vredestein models
with a maximum listed pressure of 145 psi.
I would like to know where roads smooth enough for 145 psi are.
--
Tom Sherman - 42.435731,-83.985007
LOCAL CACTUS EATS CYCLIST - datakoll
Kerry Montgomery
"Tom Sherman" <sunset...@REMOVETHISyahoo.com> wrote in message
news:gjcf4j$3vm$2...@news.motzarella.org...
Tom,
Or the DedaTRE Open Tubular (= clincher) at 10 bar.
http://www.dedatre.com/rsc_en.php
Don't know where they'd be suitable, either.
Kerry
Lou Holtman
> Andre Jute wrote:
>> On Dec 29, 10:54 pm, jim beam <spamvor...@bad.example.net> wrote:
>>> http://www.flickr.com/photos/38636024@N00/3148123231/
>>>
>>> 10 points for the correct answer.
>>
>> 8 bars is 116psi, not 177psi. -- AJ
>
> yup, could result in blow-up-in-your-faceilarity... sheesh
>
> Hopefully most people are smart enough not to blow up a bike tire to 177
> PSI, but there's a reason behind every warning label...
>
> nate
>
Hopefully people get smart enough to use bar instead of psi as a unit of
pressure.... Only one digit, so less change to make a typo..
Lou
A Muzi
> http://www.flickr.com/photos/38636024@N00/3148123231/
>
> 10 points for the correct answer.
>
uh, let's see, 117 point six actually.
--
Andrew Muzi
<www.yellowjersey.org/>
Open every day since 1 April, 1971
** Posted from http://www.teranews.com **
Mike Rocket J Squirrel
> On Mon, 29 Dec 2008 15:45:32 -0800, landotter wrote:
>
>> On Dec 29, 5:00Â pm, Andre Jute <fiult...@yahoo.com> wrote:
>>> On Dec 29, 10:54Â pm, jim beam <spamvor...@bad.example.net> wrote:
>>>
>>>> http://www.flickr.com/photos/38636024@N00/3148123231/
>>>> 10 points for the correct answer.
>>> 8 bars is 116psi, not 177psi. -- AJ
>> Obvious since the rated pressure goes down with tire width. Label is
>> from a Mavic CXP22. Even the one on their site is wrong. I believe
>> that's some more of that European Mystique--in line with the inability
>> for mortals to find recommended spoke tensions for their fromagey
>> extrusions.
>
> maybe its because the french write their 1's like 7's, and their 7's like
> t's. damned confusing to the rest of the world.
>
Not just the French. I've seen that in Switzerland, Germany, and Austria .
. . maybe Belgium and the Netherlands, too? Be fun to put together a
collection of international number-writing styles.
--
Mike "Rocket J Squirrel"
Bend, Oregon
Michael Press
A Muzi <a...@yellowjersey.org> wrote:
> jim beam wrote:
> > http://www.flickr.com/photos/38636024@N00/3148123231/
> >
> > 10 points for the correct answer.
> >
> arithmetic error. 8 bar is only ~115psi
>
>
> uh, let's see, 117 point six actually.
How did you do your conversion? I get
8 bar 10^5 newton/m^2 kg m/sec^2 pound poundforce g (0.0254 m)^2
------- ---------------- ------------ ------------- ---------- --------------- -------------
1 bar newton 0.45359237 kg pound g 9.80665 m/sec^2 inch^2
= 116.0301901841673721233928223 psi
Compare with Andre Jute's 116.03019005916347 psi
Fortuitously, 1 bar ~= .987 atmosphere.
--
Michael Press
A Muzi
>>> http://www.flickr.com/photos/38636024@N00/3148123231/
>>> 10 points for the correct answer.
> A Muzi <a...@yellowjersey.org> wrote:
>> arithmetic error. 8 bar is only ~115psi
>> uh, let's see, 117 point six actually.
Michael Press wrote:
> How did you do your conversion? I get
>
> 8 bar 10^5 newton/m^2 kg m/sec^2 pound poundforce g (0.0254 m)^2
> ------- ---------------- ------------ ------------- ---------- --------------- -------------
> 1 bar newton 0.45359237 kg pound g 9.80665 m/sec^2 inch^2
> = 116.0301901841673721233928223 psi
> Compare with Andre Jute's 116.03019005916347 psi
> Fortuitously, 1 bar ~= .987 atmosphere.
I was wrong too.
I thought 1 bar = 1 atm but it's not so.
Frank Krygowski
>
> I was wrong too.
> I thought 1 bar = 1 atm but it's not so.
I think the difference is noticeable only on Usenet!
Come to think of it, one bar is somewhat greater than today's
atmosphere. According to my barometer, anyway.
- Frank Krygowski
jobst....@stanfordalumni.org
>>> Fortuitously, 1 bar ~= .987 atmosphere.
>> I was wrong too.
>> I thought 1 bar = 1 atm but it's not so.
> I think the difference is noticeable only on Usenet!
> Come to think of it, one bar is somewhat greater than today's
> atmosphere. According to my barometer, anyway.
In Europe the bar, formerly a kg/cm2 has often been called an "ATU"
aka technical atmosphere equivalent to 14.22 psi while a sea level
atmosphere is an "ATM" or 14.7 psi. I think that is where the
confusion arises.
Jobst Brandt
dre...@gmail.com
I've been in many bars where the atmosphere was lower that outside.
dre...@gmail.com
opps; make that: I've been in many bars where the atmosphere was lower
than outside.
Michael Press
jobst....@stanfordalumni.org wrote:
> Frank Krygowski wrote:
>
> >>> Fortuitously, 1 bar ~= .987 atmosphere.
>
> >> I was wrong too.
> >> I thought 1 bar = 1 atm but it's not so.
>
> > I think the difference is noticeable only on Usenet!
>
> > Come to think of it, one bar is somewhat greater than today's
> > atmosphere. According to my barometer, anyway.
>
> In Europe the bar, formerly a kg/cm2 has often been called an "ATU"
Units are off. 1 bar = 10 kg/cm2 * m/sec2
which makes 1 bar approximately 1 g * kg/cm.
> aka technical atmosphere equivalent to 14.22 psi while a sea level
> atmosphere is an "ATM" or 14.7 psi. I think that is where the
> confusion arises.
--
Michael Press
Mike
wrote:
>I always cross my sevens. Got into the habit after losing points on
>interminable problem sets in college where I'd do everything right but
>confuse a "1" with a "7" because I was in a hurry, it was late, I was
>tired etc. Once you start crossing your sevens that is no longer an issue.
If you wrote your 1's in the correct form then they would be no
confusion with 7's.
Using comma's for decimal points is another stupid Frenchism :)
--
andre...@aol.com
> On Mon, 29 Dec 2008 19:33:17 -0500, Nate Nagel <njna...@roosters.net>
Actually, it is the universal standard. When I went to college I used
commas instead of points for decimals. Fortunately I was attending
science classes in programs with lots of Asian, Indians, Mexicans and
other alien students like me. Fortunately the faculty were used to the
alien traditions of all the weirdos that dominated the science
classrooms. So, they wouldn't take points off for our use of alien
symbols. They also knew that one billion in the rest of the world = to
one trillon here, and one trillion in the US is one cuatrillion. One
US billion is known as one thousand million to the west, east and
south.
Mike
I know it's a standard - it's imposed/forced on many countries
worldwide that comply with ISO standards for (engineering) drawings.
Originally intended to reduce confusion on badly printed dyeline
drawings, now it just confuses the hell out of everybody on good or
bad prints, on monitor screens, on the shop floor, on site -
everywhere!
USA billions make more sense (and are interpreted as such very widely
but - heads off at tangent..... using month-day-year is as backward
as it's possible to get, they only make sense one day a year - the
date this year being the 9th September. YYYYMMDD (ISO8601) where
date sorting is 'easy' or DDMMYY for everyday use is just so much more
logical and far less prone to error.
--