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The Leap Second is Dead. How Will GNU/Linux Cope?

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  The Leap Second is Dead.  How Will GNU/Linux Cope? Leroy H <lh@somewhere.net> - 2026-10-16 15:45 +0000
    Re: The Leap Second is Dead. How Will GNU/Linux Cope? Andy Burns <usenet@andyburns.uk> - 2026-10-16 16:56 +0100
      Re: The Leap Second is Dead. How Will GNU/Linux Cope? Leroy H <lh@somewhere.net> - 2026-10-16 17:08 +0000
    Re: The Leap Second is Dead.  How Will GNU/Linux Cope? Cóilín Nioclásín Glostéir <thanks-to@Taf.com> - 2026-10-16 19:13 +0000
    Re: The Leap Second is Dead.  How Will GNU/Linux Cope? Stéphane CARPENTIER <sc@fiat-linux.fr> - 2026-10-17 13:29 +0000
      Re: The Leap Second is Dead.  How Will GNU/Linux Cope? gazelle@shell.xmission.com (Kenny McCormack) - 2026-10-17 13:51 +0000
      Re: The Leap Second is Dead.  How Will GNU/Linux Cope? Leroy H <lh@somewhere.net> - 2026-10-17 14:19 +0000
        Re: The Leap Second is Dead. How Will GNU/Linux Cope? "Carlos E.R." <robin_listas@es.invalid> - 2026-10-17 19:37 +0200
          Re: The Leap Second is Dead. How Will GNU/Linux Cope? The Natural Philosopher <tnp@invalid.invalid> - 2026-10-18 11:25 +0100
          Metric vs. US/Imperial (Was: The Leap Second is Dead. How Will GNU/Linux Cope?) gazelle@shell.xmission.com (Kenny McCormack) - 2026-10-18 11:57 +0000
            Re: Metric vs. US/Imperial (Was: The Leap Second is Dead. How Will GNU/Linux Cope?) "Carlos E.R." <robin_listas@es.invalid> - 2026-10-18 14:20 +0200
              Re: Metric vs. US/Imperial (Was: The Leap Second is Dead. How Will GNU/Linux Cope?) The Natural Philosopher <tnp@invalid.invalid> - 2026-10-18 13:25 +0100
                Re: Metric vs. US/Imperial (Was: The Leap Second is Dead. How Will GNU/Linux Cope?) "Carlos E.R." <robin_listas@es.invalid> - 2026-10-18 14:31 +0200
                  Re: Metric vs. US/Imperial (Was: The Leap Second is Dead. How Will GNU/Linux Cope?) The Natural Philosopher <tnp@invalid.invalid> - 2026-10-18 14:23 +0100
                  Re: Metric vs. US/Imperial (Was: The Leap Second is Dead. How Will GNU/Linux Cope?) Stéphane CARPENTIER <sc@fiat-linux.fr> - 2026-10-18 13:35 +0000
                    Re: Metric vs. US/Imperial (Was: The Leap Second is Dead. How Will GNU/Linux Cope?) rbowman <bowman@montana.com> - 2026-10-18 18:45 +0000
                      Re: Metric vs. US/Imperial (Was: The Leap Second is Dead. How Will GNU/Linux Cope?) Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2026-10-18 21:41 +0000
                        Re: Metric vs. US/Imperial (Was: The Leap Second is Dead. How Will GNU/Linux Cope?) Leroy H <lh@somewhere.net> - 2026-10-19 00:57 +0000
                          Re: Metric vs. US/Imperial (Was: The Leap Second is Dead. How Will GNU/Linux Cope?) Andy Burns <usenet@andyburns.uk> - 2026-10-19 09:26 +0100
                            Re: Metric vs. US/Imperial (Was: The Leap Second is Dead. How Will GNU/Linux Cope?) Leroy H <lh@somewhere.net> - 2026-10-19 14:17 +0000
                        Re: Metric vs. US/Imperial (Was: The Leap Second ...) Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-10-19 02:11 +0000
                          Re: Metric vs. US/Imperial (Was: The Leap Second ...) Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2026-10-19 02:38 +0000
                            Re: Metric vs. US/Imperial (Was: The Leap Second ...) Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-10-19 03:52 +0000
                              Re: Metric vs. US/Imperial (Was: The Leap Second ...) Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2026-10-19 03:56 +0000
                                Re: Metric vs. US/Imperial (Was: The Leap Second ...) Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-10-19 05:58 +0000
                                  Re: Metric vs. US/Imperial Nuno Silva <nunojsilva@invalid.invalid> - 2026-10-20 02:41 +0100
                          Re: Metric vs. US/Imperial (Was: The Leap Second ...) Leroy H <lh@somewhere.net> - 2026-10-19 03:03 +0000
                        Re: Metric vs. US/Imperial (Was: The Leap Second is Dead. How Will GNU/Linux Cope?) rbowman <bowman@montana.com> - 2026-10-19 02:49 +0000
                        Re: Metric vs. US/Imperial (Was: The Leap Second is Dead. How Will GNU/Linux Cope?) The Natural Philosopher <tnp@invalid.invalid> - 2026-10-19 11:49 +0100
                      Re: Metric vs. US/Imperial Nuno Silva <nunojsilva@invalid.invalid> - 2026-10-20 02:29 +0100
                        Re: Metric vs. US/Imperial Leroy H <lh@somewhere.net> - 2026-10-20 01:59 +0000
                        Re: Metric vs. US/Imperial gazelle@shell.xmission.com (Kenny McCormack) - 2026-10-20 13:20 +0000
                          Re: Metric vs. US/Imperial The Natural Philosopher <tnp@invalid.invalid> - 2026-10-20 14:29 +0100
                          Re: Metric vs. US/Imperial rbowman <bowman@montana.com> - 2026-10-20 18:10 +0000
                            Re: Metric vs. US/Imperial The Natural Philosopher <tnp@invalid.invalid> - 2026-10-21 10:19 +0100
                              Re: Metric vs. US/Imperial rbowman <bowman@montana.com> - 2026-10-21 19:22 +0000
                        Re: Metric vs. US/Imperial rbowman <bowman@montana.com> - 2026-10-20 18:05 +0000
                    Re: Metric vs. US/Imperial (Was: The Leap Second is Dead. How Will GNU/Linux Cope?) The Natural Philosopher <tnp@invalid.invalid> - 2026-10-18 20:15 +0100
                    Re: Metric vs. US/Imperial (Was: The Leap Second is Dead. How Will GNU/Linux Cope?) c186282 <c186282@nnada.net> - 2026-10-19 00:44 -0400
                      Re: Metric vs. US/Imperial (Was: The Leap Second is Dead. How Will GNU/Linux Cope?) The Natural Philosopher <tnp@invalid.invalid> - 2026-10-19 11:54 +0100
                    Re: Metric vs. US/Imperial (Was: The Leap Second is Dead. How Will GNU/Linux Cope?) "Carlos E.R." <robin_listas@es.invalid> - 2026-10-19 20:27 +0200
                Re: Metric vs. US/Imperial (Was: The Leap Second is Dead. How Will GNU/Linux Cope?) "Carlos E.R." <robin_listas@es.invalid> - 2026-10-18 14:38 +0200
                  Re: Metric vs. US/Imperial (Was: The Leap Second is Dead. How Will GNU/Linux Cope?) The Natural Philosopher <tnp@invalid.invalid> - 2026-10-18 14:26 +0100
                    Re: Metric vs. US/Imperial (Was: The Leap Second is Dead. How Will GNU/Linux Cope?) rbowman <bowman@montana.com> - 2026-10-18 18:59 +0000
                    Re: Metric vs. US/Imperial (Was: The Leap Second is Dead. How Will GNU/Linux Cope?) "Carlos E.R." <robin_listas@es.invalid> - 2026-10-19 20:36 +0200
                      Re: Metric vs. US/Imperial (Was: The Leap Second is Dead. How Will GNU/Linux Cope?) The Natural Philosopher <tnp@invalid.invalid> - 2026-10-20 09:08 +0100
                        Re: Metric vs. US/Imperial (Was: The Leap Second is Dead. How Will GNU/Linux Cope?) "Carlos E.R." <robin_listas@es.invalid> - 2026-10-20 10:35 +0200
                          Re: Metric vs. US/Imperial (Was: The Leap Second is Dead. How Will GNU/Linux Cope?) The Natural Philosopher <tnp@invalid.invalid> - 2026-10-20 14:21 +0100
                  Re: Metric vs. US/Imperial (Was: The Leap Second is Dead. How Will GNU/Linux Cope?) rbowman <bowman@montana.com> - 2026-10-18 18:55 +0000
              Re: Metric vs. US/Imperial (Was: The Leap Second is Dead. How Will GNU/Linux Cope?) Roger Blake <rogblake@iname.invalid> - 2026-10-18 19:05 +0000
                Re: Metric vs. US/Imperial (Was: The Leap Second is Dead. How Will GNU/Linux Cope?) The Natural Philosopher <tnp@invalid.invalid> - 2026-10-18 20:41 +0100
                  Re: Metric vs. US/Imperial (Was: The Leap Second is Dead. How Will GNU/Linux Cope?) Roger Blake <rogblake@iname.invalid> - 2026-10-19 00:15 +0000
                    Re: Metric vs. US/Imperial (Was: The Leap Second ...) Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-10-19 02:02 +0000
                      Re: Metric vs. US/Imperial Nuno Silva <nunojsilva@invalid.invalid> - 2026-10-20 02:18 +0100
                        Re: Metric vs. US/Imperial Leroy H <lh@somewhere.net> - 2026-10-20 01:52 +0000
                          Re: Metric vs. US/Imperial "Carlos E.R." <robin_listas@es.invalid> - 2026-10-20 10:37 +0200
                            Re: Metric vs. US/Imperial Pancho <Pancho.Jones@protonmail.com> - 2026-10-20 11:39 +0100
                            Re: Metric vs. US/Imperial The Natural Philosopher <tnp@invalid.invalid> - 2026-10-20 14:22 +0100
                              Re: Metric vs. US/Imperial "Carlos E.R." <robin_listas@es.invalid> - 2026-10-20 21:11 +0200
                          Re: Metric vs. US/Imperial rbowman <bowman@montana.com> - 2026-10-20 17:45 +0000
                            Re: Metric vs. US/Imperial Leroy H <lh@somewhere.net> - 2026-10-20 18:28 +0000
                              Re: Metric vs. US/Imperial rbowman <bowman@montana.com> - 2026-10-21 01:05 +0000
                    Re: Metric vs. US/Imperial (Was: The Leap Second is Dead. How Will GNU/Linux Cope?) The Natural Philosopher <tnp@invalid.invalid> - 2026-10-19 11:48 +0100
                  Re: Metric vs. US/Imperial (Was: The Leap Second is Dead. How Will GNU/Linux Cope?) rbowman <bowman@montana.com> - 2026-10-19 02:42 +0000
                    Re: Metric vs. US/Imperial Nuno Silva <nunojsilva@invalid.invalid> - 2026-10-20 02:20 +0100
                      Re: Metric vs. US/Imperial Marc Haber <mh+usenetspam2616@zugschl.us> - 2026-10-20 08:39 +0200
                        Re: Metric vs. US/Imperial Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-10-20 07:53 +0000
                        Re: Metric vs. US/Imperial "Carlos E.R." <robin_listas@es.invalid> - 2026-10-20 10:38 +0200
                          Re: Metric vs. US/Imperial The Natural Philosopher <tnp@invalid.invalid> - 2026-10-20 14:23 +0100
                            Re: Metric vs. US/Imperial "Carlos E.R." <robin_listas@es.invalid> - 2026-10-20 21:13 +0200
                              Re: Metric vs. US/Imperial Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2026-10-20 23:18 +0000
                                Re: Metric vs. US/Imperial "Carlos E.R." <robin_listas@es.invalid> - 2026-10-21 03:09 +0200
                                  Re: Metric vs. US/Imperial Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2026-10-21 03:22 +0000
                                    Re: Metric vs. US/Imperial "Carlos E.R." <robin_listas@es.invalid> - 2026-10-21 11:19 +0200
                                      Re: Metric vs. US/Imperial rbowman <bowman@montana.com> - 2026-10-21 13:44 +0000
                                        Re: Metric vs. US/Imperial gazelle@shell.xmission.com (Kenny McCormack) - 2026-10-21 13:54 +0000
                                          Re: Metric vs. US/Imperial Andy Burns <usenet@andyburns.uk> - 2026-10-21 15:33 +0100
                                        Re: Metric vs. US/Imperial The Natural Philosopher <tnp@invalid.invalid> - 2026-10-21 15:19 +0100
                                          Re: Metric vs. US/Imperial rbowman <bowman@montana.com> - 2026-10-21 19:44 +0000
                                  Re: Metric vs. US/Imperial The Natural Philosopher <tnp@invalid.invalid> - 2026-10-21 10:24 +0100
                                Re: Metric vs. US/Imperial "Carlos E.R." <robin_listas@es.invalid> - 2026-10-21 03:16 +0200
                                Re: Metric vs. US/Imperial rbowman <bowman@montana.com> - 2026-10-21 02:31 +0000
                                  Re: Metric vs. US/Imperial Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2026-10-21 03:22 +0000
                                  Re: Metric vs. US/Imperial "Carlos E.R." <robin_listas@es.invalid> - 2026-10-21 11:21 +0200
                                    Re: Metric vs. US/Imperial rbowman <bowman@montana.com> - 2026-10-21 14:00 +0000
                                      Re: Metric vs. US/Imperial "Carlos E.R." <robin_listas@es.invalid> - 2026-10-21 19:56 +0200
                        Re: Metric vs. US/Imperial Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2026-10-20 19:04 +0000
                          Re: Metric vs. US/Imperial "Carlos E.R." <robin_listas@es.invalid> - 2026-10-20 22:02 +0200
                            Re: Metric vs. US/Imperial The Natural Philosopher <tnp@invalid.invalid> - 2026-10-21 10:22 +0100
                          Re: Metric vs. US/Imperial Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-10-20 20:29 +0000
                          Re: Metric vs. US/Imperial rbowman <bowman@montana.com> - 2026-10-21 02:12 +0000
                            Re: Metric vs. US/Imperial The Natural Philosopher <tnp@invalid.invalid> - 2026-10-21 10:22 +0100
                              Re: Metric vs. US/Imperial rbowman <bowman@montana.com> - 2026-10-21 13:57 +0000
                                Re: Metric vs. US/Imperial The Natural Philosopher <tnp@invalid.invalid> - 2026-10-21 15:18 +0100
                                  Re: Metric vs. US/Imperial rbowman <bowman@montana.com> - 2026-10-21 19:51 +0000
                                Re: Metric vs. US/Imperial "Carlos E.R." <robin_listas@es.invalid> - 2026-10-21 19:58 +0200
                                  Re: Metric vs. US/Imperial rbowman <bowman@montana.com> - 2026-10-21 19:58 +0000
                          Re: Metric vs. US/Imperial The Natural Philosopher <tnp@invalid.invalid> - 2026-10-21 10:20 +0100
                      Re: Metric vs. US/Imperial rbowman <bowman@montana.com> - 2026-10-20 17:57 +0000
                Re: Metric vs. US/Imperial (Was: The Leap Second is Dead. How Will GNU/Linux Cope?) "Carlos E.R." <robin_listas@es.invalid> - 2026-10-19 20:49 +0200
            Re: Metric vs. US/Imperial (Was: The Leap Second is Dead. How Will GNU/Linux Cope?) The Natural Philosopher <tnp@invalid.invalid> - 2026-10-18 13:21 +0100
              Re: Metric vs. US/Imperial (Was: The Leap Second is Dead. How Will GNU/Linux Cope?) rbowman <bowman@montana.com> - 2026-10-18 19:04 +0000
            Re: Metric vs. US/Imperial (Was: The Leap Second is Dead. How Will GNU/Linux Cope?) Leroy H <lh@somewhere.net> - 2026-10-18 14:07 +0000
              Re: Metric vs. US/Imperial (Was: The Leap Second is Dead. How Will GNU/Linux Cope?) Lars Poulsen <lars@beagle-ears.com> - 2026-10-18 11:45 -0700
                Re: Metric vs. US/Imperial (Was: The Leap Second is Dead. How Will GNU/Linux Cope?) Leroy H <lh@somewhere.net> - 2026-10-18 19:27 +0000
                  Re: Metric vs. US/Imperial (Was: The Leap Second is Dead. How Will GNU/Linux Cope?) rbowman <bowman@montana.com> - 2026-10-19 02:30 +0000
                Re: Metric vs. US/Imperial (Was: The Leap Second ...) Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-10-19 02:06 +0000
              Re: Metric vs. US/Imperial (Was: The Leap Second is Dead. How Will GNU/Linux Cope?) rbowman <bowman@montana.com> - 2026-10-18 19:05 +0000
                Re: Metric vs. US/Imperial (Was: The Leap Second is Dead. How Will GNU/Linux Cope?) Leroy H <lh@somewhere.net> - 2026-10-18 19:32 +0000
                  Re: Metric vs. US/Imperial (Was: The Leap Second is Dead. How Will GNU/Linux Cope?) gazelle@shell.xmission.com (Kenny McCormack) - 2026-10-18 19:37 +0000
                  Re: Metric vs. US/Imperial (Was: The Leap Second is Dead. How Will GNU/Linux Cope?) rbowman <bowman@montana.com> - 2026-10-19 02:20 +0000
                Re: Metric vs. US/Imperial (Was: The Leap Second is Dead. How Will GNU/Linux Cope?) The Natural Philosopher <tnp@invalid.invalid> - 2026-10-18 20:40 +0100
              Re: Metric vs. US/Imperial (Was: The Leap Second is Dead. How Will GNU/Linux Cope?) "Carlos E.R." <robin_listas@es.invalid> - 2026-10-19 21:00 +0200
              Re: Metric vs. US/Imperial Nuno Silva <nunojsilva@invalid.invalid> - 2026-10-20 03:03 +0100
              Re: Metric vs. US/Imperial (Was: The Leap Second is Dead. How Will GNU/Linux Cope?) Pancho <Pancho.Jones@protonmail.com> - 2026-10-20 11:40 +0100
                Re: Metric vs. US/Imperial (Was: The Leap Second is Dead. How Will GNU/Linux Cope?) The Natural Philosopher <tnp@invalid.invalid> - 2026-10-20 14:26 +0100

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#94416 — Re: Metric vs. US/Imperial

On 20 Oct 2026 17:45:48 GMT, rbowman wrote:

> 
> I don't remember drills like that. The assumption was if you were there 
> you'd figured out how to do simple conversions. There was one freshman 
> year section that was basically remedial English. This was not aimed at 
> ESL students.
>

The conversions were not "simple."

The gas constant, R, can occur in a LOT of unit variations and
most textbook problems included several variations that needed
to be converted to a final form before the desired solution was
obtained.  Speed was of the essence.  The problems were conceptually
straightforward but the unit conversions required the most effort.

<https://en.wikipedia.org/wiki/Gas_constant>

Unit conversions are extremely important as chem engs are expected
to work with many different specialties that may know only one type
of unit.

But then your school could have been a cheap "diploma mill" that
did not emphasize academic excellence.

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#94437 — Re: Metric vs. US/Imperial

On Tue, 20 Oct 2026 18:28:29 +0000, Leroy H wrote:

> But then your school could have been a cheap "diploma mill" that did not
> emphasize academic excellence.

In the '60s RPI was in the top three engineering schools in the US, so 
fuck your excellence.

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#94311 — Re: Metric vs. US/Imperial (Was: The Leap Second is Dead. How Will GNU/Linux Cope?)

On 19/10/2026 01:15, Roger Blake wrote:
> On 2026-10-18, The Natural Philosopher <tnp@invalid.invalid> wrote:
>> Of course. rims are inches, tyre tread widths are mm.
> 
> Since the person I was asking said that only metric is taught
> in his country's schools, I was wondering if people there just
> scratch their heads in confusion when buying tires.
> 
> To me the metric system makes no sense. I don't grok it at all.
> But fortunately in the U.S. the exposure to it is minimal.
> 
It would seem that your exposure to metric is as limited by narrow 
experience as Carlos' is to non metric


-- 
"Anyone who believes that the laws of physics are mere social 
conventions is invited to try transgressing those conventions from the 
windows of my apartment. (I live on the twenty-first floor.) "

Alan Sokal

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#94274 — Re: Metric vs. US/Imperial (Was: The Leap Second is Dead. How Will GNU/Linux Cope?)

On Sun, 18 Oct 2026 20:41:57 +0100, The Natural Philosopher wrote:

> On 18/10/2026 20:05, Roger Blake wrote:
>> On 2026-10-18, Carlos E.R. <robin_listas@es.invalid> wrote:
>>> Here, the imperial system is not even mentioned in school. All is SI.
>>> As in most countries.
>> 
>> How are vehicles wheel/tire diameters in your country measured?
>> All the imported cars I see here in the U.S. have wheels and tire size
>> measured in inches.
>> 
> Of course. rims are inches, tyre tread widths are mm.

They're slowly going to metric but bike tires, particularly tube type  
knobbies, still are sometimes in inches. 

https://fortnine.ca/en/converting-motorcycle-tire-sizing-systems

I'm pretty sure my current set of Kendas are stamped in inches.

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#94370 — Re: Metric vs. US/Imperial

On 2026-10-19, rbowman wrote:

> On Sun, 18 Oct 2026 20:41:57 +0100, The Natural Philosopher wrote:
>
>> On 18/10/2026 20:05, Roger Blake wrote:
>>> On 2026-10-18, Carlos E.R. <robin_listas@es.invalid> wrote:
>>>> Here, the imperial system is not even mentioned in school. All is SI.
>>>> As in most countries.
>>> 
>>> How are vehicles wheel/tire diameters in your country measured?
>>> All the imported cars I see here in the U.S. have wheels and tire size
>>> measured in inches.
>>> 
>> Of course. rims are inches, tyre tread widths are mm.
>
> They're slowly going to metric but bike tires, particularly tube type  
> knobbies, still are sometimes in inches. 
>
> https://fortnine.ca/en/converting-motorcycle-tire-sizing-systems
>
> I'm pretty sure my current set of Kendas are stamped in inches.

Do people in the USA use another numbering for CR2032 batteries? Or do
they just use the SI units there?

-- 
Nuno Silva

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#94380 — Re: Metric vs. US/Imperial

Nuno Silva <nunojsilva@invalid.invalid> wrote:
>Do people in the USA use another numbering for CR2032 batteries? Or do
>they just use the SI units there?

3,5 Inch Floppies are actually specced as 89 mm. In the 1990ies some
german courts fined companied for not giving the floppy size in SI
units, which prompty led to advertisements like "Diskette 8,89 cm".

Greetings
Marc
-- 
----------------------------------------------------------------------------
Marc Haber         |   " Questions are the         | Mailadresse im Header
Rhein-Neckar, DE   |     Beginning of Wisdom "     | 
Nordisch by Nature | Lt. Worf, TNG "Rightful Heir" | Fon: *49 6224 1600402

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#94382 — Re: Metric vs. US/Imperial

On Tue, 20 Oct 2026 08:39:29 +0200, Marc Haber wrote:

> 3,5 Inch Floppies are actually specced as 89 mm. In the 1990ies some
> german courts fined companied for not giving the floppy size in SI
> units, which prompty led to advertisements like "Diskette 8,89 cm".

Not mm?

Then it would sound like an FM station. “Radio Floppy Eighty-Eight
Point Nine!”

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#94389 — Re: Metric vs. US/Imperial

On 2026-10-20 08:39, Marc Haber wrote:
> Nuno Silva <nunojsilva@invalid.invalid> wrote:
>> Do people in the USA use another numbering for CR2032 batteries? Or do
>> they just use the SI units there?
> 
> 3,5 Inch Floppies are actually specced as 89 mm. In the 1990ies some
> german courts fined companied for not giving the floppy size in SI
> units, which prompty led to advertisements like "Diskette 8,89 cm".

Wow. That's a funny one.

-- 
Cheers, Carlos.
ES🇪🇸, EU🇪🇺;

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#94402 — Re: Metric vs. US/Imperial

On 20/10/2026 09:38, Carlos E.R. wrote:
> On 2026-10-20 08:39, Marc Haber wrote:
>> Nuno Silva <nunojsilva@invalid.invalid> wrote:
>>> Do people in the USA use another numbering for CR2032 batteries? Or do
>>> they just use the SI units there?
>>
>> 3,5 Inch Floppies are actually specced as 89 mm. In the 1990ies some
>> german courts fined companied for not giving the floppy size in SI
>> units, which prompty led to advertisements like "Diskette 8,89 cm".
> 
> Wow. That's a funny one.
> 

I wonder what recording tape speeds are quoted in, in Spain
Or wheel rims


-- 
Karl Marx said religion is the opium of the people.
But Marxism is the crack cocaine.

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#94423 — Re: Metric vs. US/Imperial

On 2026-10-20 15:23, The Natural Philosopher wrote:
> On 20/10/2026 09:38, Carlos E.R. wrote:
>> On 2026-10-20 08:39, Marc Haber wrote:
>>> Nuno Silva <nunojsilva@invalid.invalid> wrote:
>>>> Do people in the USA use another numbering for CR2032 batteries? Or do
>>>> they just use the SI units there?
>>>
>>> 3,5 Inch Floppies are actually specced as 89 mm. In the 1990ies some
>>> german courts fined companied for not giving the floppy size in SI
>>> units, which prompty led to advertisements like "Diskette 8,89 cm".
>>
>> Wow. That's a funny one.
>>
> 
> I wonder what recording tape speeds are quoted in, in Spain
> Or wheel rims

I don't remember. Cassettes, in mm/s.

Tape reels, depends on who manufactured them.

-- 
Cheers, Carlos.
ES🇪🇸, EU🇪🇺;

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#94435 — Re: Metric vs. US/Imperial

On 2026-10-20, Carlos E.R. <robin_listas@es.invalid> wrote:

> On 2026-10-20 15:23, The Natural Philosopher wrote:
>
>> On 20/10/2026 09:38, Carlos E.R. wrote:
>>
>>> On 2026-10-20 08:39, Marc Haber wrote:
>>>
>>>> Nuno Silva <nunojsilva@invalid.invalid> wrote:
>>>>
>>>>> Do people in the USA use another numbering for CR2032 batteries? Or do
>>>>> they just use the SI units there?

I don't think anyone knows what the "2032" part even means.
I didn't myself until recently, when I started correlating
it with the numbers on other sizes of batteries (plus a
bit of work with a measuring tape).

>>>> 3,5 Inch Floppies are actually specced as 89 mm. In the 1990ies some
>>>> german courts fined companied for not giving the floppy size in SI
>>>> units, which prompty led to advertisements like "Diskette 8,89 cm".
>>>
>>> Wow. That's a funny one.
>> 
>> I wonder what recording tape speeds are quoted in, in Spain
>> Or wheel rims
>
> I don't remember. Cassettes, in mm/s.
>
> Tape reels, depends on who manufactured them.

I remember seeing decks marked with both units: 7 1/2 ips / 19 cm/s,
and 3 3/4 ips / 9.5 cm/s.  So I guess cassettes would be 4.75 cm/s.
More or less...

-- 
/~\  Charlie Gibbs                  |  In this world there are
\ /  <cgibbs@kltpzyxm.invalid>      |  two kinds of people:
 X   I'm really at ac.dekanfrus     |  1. Those who can extrapolate
/ \  if you read it the right way.  |  from incomplete data.

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#94438 — Re: Metric vs. US/Imperial

On 2026-10-21 01:18, Charlie Gibbs wrote:
> On 2026-10-20, Carlos E.R. <robin_listas@es.invalid> wrote:
> 
>> On 2026-10-20 15:23, The Natural Philosopher wrote:
>>
>>> On 20/10/2026 09:38, Carlos E.R. wrote:
>>>
>>>> On 2026-10-20 08:39, Marc Haber wrote:
>>>>
>>>>> Nuno Silva <nunojsilva@invalid.invalid> wrote:
>>>>>
>>>>>> Do people in the USA use another numbering for CR2032 batteries? Or do
>>>>>> they just use the SI units there?
> 
> I don't think anyone knows what the "2032" part even means.
> I didn't myself until recently, when I started correlating
> it with the numbers on other sizes of batteries (plus a
> bit of work with a measuring tape).

I chanced on a summer news article that explained it, but I have 
forgotten. Something about diameter and thickness.

> 
>>>>> 3,5 Inch Floppies are actually specced as 89 mm. In the 1990ies some
>>>>> german courts fined companied for not giving the floppy size in SI
>>>>> units, which prompty led to advertisements like "Diskette 8,89 cm".
>>>>
>>>> Wow. That's a funny one.
>>>
>>> I wonder what recording tape speeds are quoted in, in Spain
>>> Or wheel rims
>>
>> I don't remember. Cassettes, in mm/s.
>>
>> Tape reels, depends on who manufactured them.
> 
> I remember seeing decks marked with both units: 7 1/2 ips / 19 cm/s,
> and 3 3/4 ips / 9.5 cm/s.  So I guess cassettes would be 4.75 cm/s.
> More or less...


I would have to google, I don't remember :-D

Was there double duration cassettes at half speed?


-- 
Cheers, Carlos.
ES🇪🇸, EU🇪🇺;

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#94452 — Re: Metric vs. US/Imperial

On 2026-10-21, Carlos E.R. <robin_listas@es.invalid> wrote:

> On 2026-10-21 01:18, Charlie Gibbs wrote:
>
>> On 2026-10-20, Carlos E.R. <robin_listas@es.invalid> wrote:
>> 
>>> On 2026-10-20 15:23, The Natural Philosopher wrote:
>>>
>>>> On 20/10/2026 09:38, Carlos E.R. wrote:
>>>>
>>>>> On 2026-10-20 08:39, Marc Haber wrote:
>>>>>
>>>>>> Nuno Silva <nunojsilva@invalid.invalid> wrote:
>>>>>>
>>>>>>> Do people in the USA use another numbering for CR2032 batteries? Or do
>>>>>>> they just use the SI units there?
>> 
>> I don't think anyone knows what the "2032" part even means.
>> I didn't myself until recently, when I started correlating
>> it with the numbers on other sizes of batteries (plus a
>> bit of work with a measuring tape).
>
> I chanced on a summer news article that explained it, but I have 
> forgotten. Something about diameter and thickness.

The first two digits are the diameter in millimeters;
the second two digits are the thickness in tenths of a millimeter.

>>>>>> 3,5 Inch Floppies are actually specced as 89 mm. In the 1990ies some
>>>>>> german courts fined companied for not giving the floppy size in SI
>>>>>> units, which prompty led to advertisements like "Diskette 8,89 cm".
>>>>>
>>>>> Wow. That's a funny one.
>>>>
>>>> I wonder what recording tape speeds are quoted in, in Spain
>>>> Or wheel rims
>>>
>>> I don't remember. Cassettes, in mm/s.
>>>
>>> Tape reels, depends on who manufactured them.
>> 
>> I remember seeing decks marked with both units: 7 1/2 ips / 19 cm/s,
>> and 3 3/4 ips / 9.5 cm/s.  So I guess cassettes would be 4.75 cm/s.
>> More or less...
>
> I would have to google, I don't remember :-D
>
> Was there double duration cassettes at half speed?

Dunno, but I heard that there were half-duration cassettes at
double speed.  They didn't last too long, probably due to a
combination of Dolby coming along, plus Philips coming down
on anyone who tried to pull a Microsoft on the specs.

-- 
/~\  Charlie Gibbs                  |  In this world there are
\ /  <cgibbs@kltpzyxm.invalid>      |  two kinds of people:
 X   I'm really at ac.dekanfrus     |  1. Those who can extrapolate
/ \  if you read it the right way.  |  from incomplete data.

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#94461 — Re: Metric vs. US/Imperial

On 2026-10-21 05:22, Charlie Gibbs wrote:
> On 2026-10-21, Carlos E.R. <robin_listas@es.invalid> wrote:
>> On 2026-10-21 01:18, Charlie Gibbs wrote:
>>> On 2026-10-20, Carlos E.R. <robin_listas@es.invalid> wrote:
>>>> On 2026-10-20 15:23, The Natural Philosopher wrote:
>>>>> On 20/10/2026 09:38, Carlos E.R. wrote:
>>>>>> On 2026-10-20 08:39, Marc Haber wrote:
>>>>>>> Nuno Silva <nunojsilva@invalid.invalid> wrote:
>>>>>>>
>>>>>>>> Do people in the USA use another numbering for CR2032 batteries? Or do
>>>>>>>> they just use the SI units there?
>>>
>>> I don't think anyone knows what the "2032" part even means.
>>> I didn't myself until recently, when I started correlating
>>> it with the numbers on other sizes of batteries (plus a
>>> bit of work with a measuring tape).
>>
>> I chanced on a summer news article that explained it, but I have
>> forgotten. Something about diameter and thickness.
> 
> The first two digits are the diameter in millimeters;
> the second two digits are the thickness in tenths of a millimeter.

And the letters must be the chemistry.

> 
>>>>>>> 3,5 Inch Floppies are actually specced as 89 mm. In the 1990ies some
>>>>>>> german courts fined companied for not giving the floppy size in SI
>>>>>>> units, which prompty led to advertisements like "Diskette 8,89 cm".
>>>>>>
>>>>>> Wow. That's a funny one.
>>>>>
>>>>> I wonder what recording tape speeds are quoted in, in Spain
>>>>> Or wheel rims
>>>>
>>>> I don't remember. Cassettes, in mm/s.
>>>>
>>>> Tape reels, depends on who manufactured them.
>>>
>>> I remember seeing decks marked with both units: 7 1/2 ips / 19 cm/s,
>>> and 3 3/4 ips / 9.5 cm/s.  So I guess cassettes would be 4.75 cm/s.
>>> More or less...
>>
>> I would have to google, I don't remember :-D
>>
>> Was there double duration cassettes at half speed?
> 
> Dunno, but I heard that there were half-duration cassettes at
> double speed.  They didn't last too long, probably due to a
> combination of Dolby coming along, plus Philips coming down
> on anyone who tried to pull a Microsoft on the specs.

:-D


-- 
Cheers, Carlos.
ES🇪🇸, EU🇪🇺;

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#94487 — Re: Metric vs. US/Imperial

On Wed, 21 Oct 2026 11:19:08 +0200, Carlos E.R. wrote:

> And the letters must be the chemistry.

Yes, but how lithium manganese gets to CR is a good question.

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#94488 — Re: Metric vs. US/Imperial

In article <njrtuoF3j5uU1@mid.individual.net>,
rbowman  <bowman@montana.com> wrote:
>On Wed, 21 Oct 2026 11:19:08 +0200, Carlos E.R. wrote:
>
>> And the letters must be the chemistry.
>
>Yes, but how lithium manganese gets to CR is a good question.

I asked Alexa that question; she explains that the C in CR stands for
chromate (or something like that) and the R stands for "round".

The thing I still don't understand is that the 32 is supposed to mean the
thickness (not the diameter).  My problem with that is that CR2016 is the
same thickness as CR2032, but is smaller (in diameter/area).

-- 
Conservatives want smaller government for the same reason criminals want fewer cops.

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#94497 — Re: Metric vs. US/Imperial

Kenny McCormack wrote:

> The thing I still don't understand is that the 32 is supposed to mean the
> thickness (not the diameter). 

xx32 = 3.2mm thick

> My problem with that is that CR2016 is the
> same thickness as CR2032, but is smaller (in diameter/area).

No, they're both 20mm diameter, one is 1.6mm the other 3.2mm thickness

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#94495 — Re: Metric vs. US/Imperial

On 21/10/2026 14:44, rbowman wrote:
> On Wed, 21 Oct 2026 11:19:08 +0200, Carlos E.R. wrote:
> 
>> And the letters must be the chemistry.
> 
> Yes, but how lithium manganese gets to CR is a good question.
Coin, round

-- 
"I guess a rattlesnake ain't risponsible fer bein' a rattlesnake, but ah 
puts mah heel on um jess the same if'n I catches him around mah chillun".

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#94514 — Re: Metric vs. US/Imperial

On Wed, 21 Oct 2026 15:19:19 +0100, The Natural Philosopher wrote:

> On 21/10/2026 14:44, rbowman wrote:
>> On Wed, 21 Oct 2026 11:19:08 +0200, Carlos E.R. wrote:
>> 
>>> And the letters must be the chemistry.
>> 
>> Yes, but how lithium manganese gets to CR is a good question.
> Coin, round

I could believe that until you get to the CR123. 

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#94465 — Re: Metric vs. US/Imperial

On 21/10/2026 02:09, Carlos E.R. wrote:
> On 2026-10-21 01:18, Charlie Gibbs wrote:
>> On 2026-10-20, Carlos E.R. <robin_listas@es.invalid> wrote:
>>
>>> On 2026-10-20 15:23, The Natural Philosopher wrote:
>>>
>>>> On 20/10/2026 09:38, Carlos E.R. wrote:
>>>>
>>>>> On 2026-10-20 08:39, Marc Haber wrote:
>>>>>
>>>>>> Nuno Silva <nunojsilva@invalid.invalid> wrote:
>>>>>>
>>>>>>> Do people in the USA use another numbering for CR2032 batteries? 
>>>>>>> Or do
>>>>>>> they just use the SI units there?
>>
>> I don't think anyone knows what the "2032" part even means.
>> I didn't myself until recently, when I started correlating
>> it with the numbers on other sizes of batteries (plus a
>> bit of work with a measuring tape).
> 
> I chanced on a summer news article that explained it, but I have 
> forgotten. Something about diameter and thickness.
> 
>>
>>>>>> 3,5 Inch Floppies are actually specced as 89 mm. In the 1990ies some
>>>>>> german courts fined companied for not giving the floppy size in SI
>>>>>> units, which prompty led to advertisements like "Diskette 8,89 cm".
>>>>>
>>>>> Wow. That's a funny one.
>>>>
>>>> I wonder what recording tape speeds are quoted in, in Spain
>>>> Or wheel rims
>>>
>>> I don't remember. Cassettes, in mm/s.
>>>
>>> Tape reels, depends on who manufactured them.
>>
>> I remember seeing decks marked with both units: 7 1/2 ips / 19 cm/s,
>> and 3 3/4 ips / 9.5 cm/s.  So I guess cassettes would be 4.75 cm/s.
>> More or less...
> 
> 
> I would have to google, I don't remember :-D
> 
> Was there double duration cassettes at half speed?
> 
> 
Probably. zero quality but marginally enough for speech

-- 
  “A leader is best When people barely know he exists. Of a good leader, 
who talks little,When his work is done, his aim fulfilled,They will say, 
“We did this ourselves.”

― Lao Tzu, Tao Te Ching

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