No puzzle in there wrt SI as a sub-processor!

Inst_Valve Sizing CV series.sm (7kb) downloaded 12 time(s).

Ok. Here is an excellent example of why units should be used in engineering calculations:



Let's look at how calculations turn out if units are used.



Reynolds_Wrong_Calculus.sm (10kb) downloaded 14 time(s).

It's very easy to make pretty serious mistakes by not using units.

Best regards.
Alvaro.

Hello Elsid, we are old roosters in the barn ... Jean.

In the interest of straight communication:

I really like that Jean is keen to help and share.

Some behaviours I'd like to see self moderated are:

• Repeatedly saying that SI units are unsuitable for process control. This misunderstanding may now be sorted, but the offending posts are still there.
  
• Misusing units by overloading (ie m:=1) because of the item above. Again sorted, but the misusing posts remain.
  
• Prolific off-topic posting, (easy to do, but so is starting an new thread).

I have read it and concluded you are bending what Martin said.


What Martin said was about book writers whom not using SI units in their published calculations.
It was not about SI units are wrong or not sufficient.
Martin's complain was writers,author and publishers laziness of not writing SI units.

Your ideology is completely different however, it faulty from start.
Your not using units is not out of laziness.
You deliberately oppose using units in calculations.
I believe anybody including Martin would not condone ditching units.


I really want to see a standard paper for those invented Michelin units, used as substitute of SI units.
Or English Engineering Units. That's right, it is the proper name of what you like to use.
It is not Engineering Units, you misuse and alter its name to be proved right.

I doubt the very existence of Michelin Units, used as a replacement for SI, Imperial or English Unit systems.
Couldn't find anywhere on internet. However I am not saying they can't exist, I just want to see a proof.
You made a lot literally untrue statements in the past, and you are still making and going to make as it seems.
I have a sentiment to doubt everything you post.

Edited by user 03 May 2022 18:23:03(UTC)  | Reason: Not specified

Do not alter the words people use or nitty pick a portion of sentence.
What did I said?


I didn't say they aren't or can't use a complete different system.
I have said I don't believe until I see they completely use an other measurement system.
I don't want to see their unit system fully uncovered.
I only want to see just a mere statement written anywhere which them using a different measurement system.

You claim Michelin invented units and using them.
When asked for proof you simply say they are using in secret.
Do NASA secretly hide the truth of flat earth too?
(this is satire by the way, explaining it in case you can't understand)

And there is an another issue, even they use another unit system, they still use UNITS.
You jocosely propagate complete ditching of units in calculations.

You are the person who claimed there is no mathematical meaning of (-1)^x.
You claimed maple is successor of maxima. You claimed no one can find a curve function.
You still use dynamic viscosity in your functions. You insist units are useless on a daily basis.
You have claimed so many ridiculous things I can't even stop laughing while remembering them.

Your words coming out of your mouth has no respectful meaning.
Most of time you simply lie, decontextualise or don't know what you say.
It is completely normal for us to suspect your gibberish statements.


Why would I correct your full of error sheets? Do your own job.
BTW, did you corrected your kW/hr MISTAKE?

Jean, there is no scientific meaning of kW/hr as said to you before. (6 years ago to be precise)

Edited by user 03 May 2022 20:56:13(UTC)  | Reason: Not specified

Jean, let's finish this conversation.

I put it to you that Michelin units (like imperial units which are now defined in SI units) are just an alias for SI units.

This would be easy to check. A a good process control engineer who knows SMath could do the required units mapping in a few minutes.

I think you are that process engineer.

BTW: it is likely that Michelin units are an obfuscation to make it hard for competitors to reverse engineer the process.

It is guaranteed that Michelin don't maintain a set of 'Michelin Standards'. Their calibration will trace back to SI units. There are no 'new and mysterious' units of measurement that are not counted for within SI units.

Edited by user 04 May 2022 00:08:54(UTC)  | Reason: Not specified

Pt100 is simply a designation from EIT90 with Ω as given 1 @ 0.01 °C.
The instrument maintenance crew calibrates the XTR's reading from
expensive secondary standard lab equipment accordingly to BIPM.
Platinum wire is not infinitely ductible ... 100 times smaller cross area ?
Of same cross area now 100 times longer ?
Don't worry, those things work fine for so long.
Cheers ... Jean.

Every single topic gets spammed and hijacked by Jean's out of topic posts.
What a spammer! You would expect such an immature use of a forum from a teenager.
This forum has become a mess under his many unrelated replies, and "search" function is polluted with crap, crusades against SI or other useless/unrelated stuff.

But maybe as forum users, we should just "stop feeding the troll" and ignore him, since it appears that the recent two weeks ban was useless, and we can't expect he changes his mind today.
So my suggestion is to stop interacting.
Personally speaking I have stopped reading his stuff and downloading his documents. And I will return silent again after this reply.

I would like to add one more thing: for "non english" mother tongue users, his colloquial english is often confusing, to say the least.
It is confusing to me, at least (and I remember more than one user being puzzled, and asking to rephrase...). Colloquial and unclear statements, that's not the approach I would expect on a forum like this one.
I remember when I joined the forum some years ago, I always read his replies ten times while thinking "Damn I need to improve my english, here there is someone who is trying to teach me something and, stupid me, I'm missing the point due to my english skill".
After some months, I finally understood that my english was 10% of the problem :^P

IMHO, in his replies there is no true intention to "help" (as some may think), but only the intention to "show" (...wrongs... as we have all read recently, and as resumed by other users in this same thread).

See you.

Edited by user 04 May 2022 09:48:29(UTC)  | Reason: Not specified

Yes Uni, I understand and agree with your statement, I also think it is a waste of time to "regulate" this at an admin level.
On the other hand, since it is unlikely that we can change Jean's mind and way of thinking, I will personally stop interacting and simply ignore what happens.
Nevertheless, it should be noted that the forum will keep getting polluted and the "search" feature (which would be a very important feature of any technical forum...) is impacted.