Re: Food Prices topic drift to TIME

On Wed, 04 Jun 2025 12:37:22 -0400, Catrike Ryder
<Soloman@old.bikers.org> wrote:
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On Wed, 04 Jun 2025 09:01:06 -0700, Jeff Liebermann <jeffl@cruzio.com>
wrote:
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On Wed, 04 Jun 2025 04:39:47 -0400, Catrike Ryder
<Soloman@old.bikers.org> wrote:
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On Tue, 03 Jun 2025 19:41:10 -0700, Jeff Liebermann <jeffl@cruzio.com>
wrote:
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On Tue, 03 Jun 2025 03:26:28 -0400, Catrike Ryder
<Soloman@old.bikers.org> wrote:
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On Mon, 02 Jun 2025 23:59:13 -0700, Jeff Liebermann <jeffl@cruzio.com>
wrote:
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On Mon, 2 Jun 2025 23:04:27 -0400, Frank Krygowski
<frkrygow@sbcglobal.net> wrote:
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On 6/2/2025 12:02 PM, pH wrote:

<snip food price postings>

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I opted for digital watches when my job required that I think in 24
hour time with minute to minute acccuracy, which is much harder and
slower to do with an analong timepiece. I have several watches and all
but my old Scuba Dive watch are on digital 24 hour time, because once
you use 24 hour time, you see how ridiculous 12 hour timekeeping is in
today's world. It is, however, hard to convince people who've used the
12 hour time all their lives.
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I understand why 12 hour time first came into being. It was, of
course, long before digital clocks and watches. An analog 24 hour
timepiece is harder and slower to read accurately than a 12 hour one.
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The later system operations control rooms I worked in had both analog
and a digital 24 hour clocks, but nobody paid any attention to the
analog clocks.
>
--
C'est bon
Soloman

 
And I wonder whey we have these weird 12 hour sixty minute times.
Babylonians?
 
I would have thought that when the MKS system came along they would have
instituted
10 hour days
100 minutes per hour and
100 seconds per minute
 
to go along with meters, kilograms and seconds....
 
But I think the societal re-tooling would be far too great a task....
 
(cue Jeff L's fabulous research skills...)

It may be too easy for Jeff.
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https://en.wikipedia.org/wiki/Decimal_time

>
Thanks.  I forgot to look. 
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Notice that Decimal Analog Clocks and watches are available:
<https://www.google.com/search?q=%22decimal%22%20clock&num=10&udm=2>
<https://svalbard24.com/DECIMAL-WATCHES-c137983753>

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I don't see any advantrage to using decimal time.

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Advantages of using decimal time
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I asked ChatGPT 3.5(free).  It produced a rather longish answer:
<https://chatgpt.com/share/683fb02e-7b2c-800c-9d5f-39e7daf40701>
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I've never been able to tell time anything.  Time does what it wants
to do without my help.

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That answer has errors.  Computers do not "favor" decimal arithmatic.

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I beg to differ.  Most CPU's support IEEE 754-2008 Decimal
Floating-Point Arithmetic.
<https://www.intel.com/content/www/us/en/developer/articles/tool/intel-decimal-floating-point-math-library.html>
"Software implementation of the IEEE 754-2008 Decimal Floating-Point
Arithmetic specification, aimed at financial applications, especially
in cases where legal requirements make it necessary to use decimal,
and not binary floating-point arithmetic (as computation performed
with binary floating-point operations may introduce small, but
unacceptable errors)."
>
There was a short time, in the 1960's, when I was receiving interest
payments from my bank, with rounding errors.
>
"IEEE-754 Floating Point Converter"
<https://www.h-schmidt.net/FloatConverter/IEEE754.html>
>
Rounding errors, when going from binary to floating point, is a common
problem found in calculations that extend to a large number of decimal
digits, such as weather calculations.  See the part about weather
calculations:
<https://www.investopedia.com/terms/r/rounding-error.asp>

>
I'm sure you know that all computers function in variations of binary.
They have to convert to decimal for humans.

>
Not all computers.  Today's home and SBC (small business computers)
use an ALU (arithmetic logic unit) to perform bit wise arithmetic on
integer binary numbers.  They also include an FPU (floating point
unit) which operates on floating point numbers (per IEEE 754-2008).

Then, there is quantum computing.  It uses qubits, which can be 0, 1,
or both at the same time.  I'll pretend to understand how it works.

There's also tri state logic:
<https://en.wikipedia.org/wiki/Three-state_logic>