Re: fast tires

On Thu, 19 Jun 2025 16:19:19 -0700, Jeff Liebermann <jeffl@cruzio.com>
wrote:

On Thu, 19 Jun 2025 17:47:33 -0400, Catrike Ryder
<Soloman@old.bikers.org> wrote:
>

On Thu, 19 Jun 2025 14:31:35 -0700, Jeff Liebermann <jeffl@cruzio.com>
wrote:
>

On Thu, 19 Jun 2025 16:53:00 -0400, Catrike Ryder
<Soloman@old.bikers.org> wrote:
>

On Thu, 19 Jun 2025 16:27:01 -0400, Radey Shouman
<shouman@comcast.net> wrote:
>

Catrike Ryder <Soloman@old.bikers.org> writes:
>

On Thu, 19 Jun 2025 12:48:26 -0700, Jeff Liebermann <jeffl@cruzio.com>
wrote:
>

On Thu, 19 Jun 2025 14:46:09 -0400, Catrike Ryder
<Soloman@old.bikers.org> wrote:
>

On Thu, 19 Jun 2025 14:20:34 -0400, Radey Shouman
<shouman@comcast.net> wrote:
>

Catrike Ryder <Soloman@old.bikers.org> writes:
>

On Wed, 18 Jun 2025 12:58:56 -0400, Frank Krygowski
<frkrygow@sbcglobal.net> wrote:

(...)

IOW if you turn an object loose with only its weight acting on its mass,
it accelerates downward at one "gee."

>
Count me unimpressed by Krygowski's cut and paste.

>
I'm reasonably sure that was written extemporaneously.  Any engineering
professor should be able to do the same.  Any practicing engineer will
have gone through the same reasoning many times.

>
I'm reasonably sure he copied out of a book.

>
To impress you, must one now memorize all the proofs and calculations?
That seems a bit excessive.  Do you memorize everything?  I don't,
mostly because my memory is not as good as when I was young.
Secondarily, because I don't like distributing potentially wrong
proofs and calculations.  If you have memorized everything, I too
would be very impressed.

>
I don't learn things by rote, I learn by knowing how things work.

>
If only you knew how force, mass, and acceleration worked you could
also write out an explanation similar to that of Prof. Krygowski.

>
>
And I'd probably get it wrong. I'd say, "Who cares?"

>
I care.  I don't like half baked explanations.  The problem is all
such explanations are half baked because they don't take into
consideration forces, masses and accelerations that only are important
in unique situations.  Newtonian mechanics worked quite well, until
scientists discovered relativistic and quantum effects.  It's really
hard to claim something is right or wrong when all the calculations
result in probabilities instead of fixed numbers.
>

Krygowski would
have to very sure he got all the commas and brackets exactly right.

>
Why?  Nobody else does that.  Most people do their best and hope they
got it right.  Very few people provide rigorous proofs and copious
citations that agree with their conclusions.  I do my best to provide
URL's from sources that either agree with my assertions or offer more
detail on a topic that might help someone understand the topic.  If
people only posted things that they knew and could prove were
absolutely correct, we would have nothing posted in rec.bicycles.tech.
I've certainly produced my share of wrong information, incorrect
analysis, bad conclusions and arithmetic errors.  I do not consider
these to be problems if I correct my mistakes (and apologize to the
group).  They are problems if the author goes into defensive mode and
performs damage control using contrived facts and data.
>
At this point, the usual solution is to ask an expert.  However, that
doesn't work very well:
<https://www.learnbydestroying.com/jeffl/crud/Premature-Judgement.txt>

>
Like I said, I don't care..  I assume people know what I meant even if
I spelled it wrong and left out a word...  and if they don't, I don't
care about that either.

>
Oh.  I didn't know that I was expected to read between the lines
instead of your one-line replies.  Some quotes from RBT for 2025:
<https://www.novabbs.com/tech/search.php>
"I don't care much for any any organised religion."
"I don't care what you believe."
"I don't care what you do and say unless your posts are dripping with
narcissism."
"I don't know and I don't care."
"I don't care if you remain astonished"
"My position is that I don't care what other adults do regarding
bicycle helmets"
"Funny thing, I don't care that you don't care whether I value your
opinions."
"I don;t knoe and I don't care who wrote it."
"I don't care about the moon rocket"
>
Not bad.  9 "I don't care's" in 5.5 months is easily tolerated.  It
does make me wonder if you care about anything.  However, that doesn't
matter because I don't care.
>

On the other hand, Krygowski has to know he got every punctuation mark
just right.

>
I can't speak for Frank, but I spend the extra few seconds it takes to
feed my rants to a spelling checker.  That's because few people bother
to read the opinions from someone who makes reading more difficult for
them.  If I posted my first draft of everything I write, I would
probably be considered illiterate, insane or terminally sloppy.  I
still make plenty of mistakes but I also use all the tools available
to reduce the number of errors to a tolerable level.
>

I do that, with great difficulty in my books, but in casual
conversions, it just doesn't matter to me.  If a person doesn't
understand and needs to know, they can ask, but mostly they don't care
either.

>
If they cared enough to read your books or engage with you in casual
conversation, you could at least make an effort to reciprocate.  If
someone engages in a casual discussion with me, and mentions that they
don't care, I usually walk away and find someone else who doesn't
waste my time.

Casual discusions are for me, generally, themselves a waste of time if
they go for more than a few minutes. That's about all the time one
needs to pass on the information and after that, it's just gossip.
After I've said what I want to say, and hear what I want to hear, I
loose interest.  I'm a much better listener than I am a talker, as are
most extreme introverts. While I'm listening I'm sorting and analysing
what's being said if it interests me. If I'm not interested, I'll look
for someting else to do.

--
C'est bon
Soloman