Let's Take A Vote...

Thanks, but I'm pretty sure they aren't in the public domain. They aren't that expensive anyway.

Cheers

Phil Hobbs

John Fields said precisely that, which was what started this whole series.

John

They can be a measure of proof that force was applied, and that can be quantified with certain devices, such as capacitors. You lose, again.

And you said...

"From: John Larkin Newsgroups: sci.electronics.design Subject: Re: Inverse Marx generator Date: Wed, 07 Jul 2010 08:50:50 -0700 Message-ID: [snip]

Right. If you dump all the energy from one charged cap into another, discharged, cap of a different value, and do it efficiently, charge is not conserved.

John"

You're a village idiot and a bloviator. How do you prove yourself different? You don't. You obfuscate and bloviate... INCESSANTLY!

What dose of Lithium are you on? ...Jim Thompson

how

Word salad, again.

John

John "The Bloviator" Larkin obfuscates yet again. Where's the "meat", John? You can't deliver, so you bloviate.

Anyone here EVER seen real numbers from John "The Bloviator" Larkin?

Speak up if you think you have. ...Jim Thompson

how

same.

I'm an engineer. EngineerScientist. Incommensurable units again.

I didn't say that charges don't cause forces. I said that charges can generate force, many times now, including just above. I said that chargs IS NOT force, and that a coulomb is not a measure of force.

What's wrong about that?

One beauty of dimensional analysis is this: if force is measured in newtons, and you have coumombs, the requirement that equated things have commensurable units means you have to go out and scrounge more measurements before you have enough to compute force, and dimensional analysis suggests what other things you need to measure. If you haven't measured enough other things to make the units align, you KNOW that any calculated result is bogus.

Of course, you can still maks a dimensionless scalar error; DA doesn't protect against that.

Would you report the computed distance in amps? That should generate a chuckle or two.

Nope, just an engineer who wants to get the numbers right. They taught us dimensional analysis our first semister in EE school, before anybody even mentioned electricity, because they knew how important it would be for the rest of our careers. JT might have learned about DA at MIT, but he may have forgotten by now.

How many people here have/haven't been taught dimensional analysis?

I guess you didn't read the wiki article. I pointed you at the easiest part.

John

We were tought it in one of the first lectures (physics degree, not EE).

I agree, it is a simple technique and extremely useful. After manipulating some long formula, you can quickly check the result by making sure the units come out right. Basically you make sure to always carry the units along with the parameter values, as you evaluate the formula.

And no, I would not say that charge is "a measure" of force. Yes, I suppose one can construct a scenario where one uses a charge to measure a force. But that is true for absolutely any two quanties no matter how unrelated. If anything can be "a measure" of anything else, then surely the phrase is meaningless.

Oh, give it a rest Jim.

Of course, many times. He frequently posts circuit measurements for but one example.

Larkin can "give it a rest" simply by withdrawing his asinine statement. But he won't... ever. John "The Bloviator" Larkin is totally incapable of admitting error.

On components. When has John "The Bloviator" Larkin ever presented a circuit with values AND performance specified? ...Jim Thompson

Tiresome. Very tiresome. I'd really hate to have to killfile you, Jim, but I'm getting close.

Cheers

Phil Hobbs

:-)

Maybe when you charged the comb - to x coulombs, or y volts, or z follicle emptying units - the force pulled the hair to the comb and stuck it there as you used it during the more useful follicle filled days.

Ed

Go ahead.

Did not John err in his "charge is not conserved" statement?

But I guess you're not interested in _factual_ discussions, just BS ones ?? ...Jim Thompson

You won't catch this trout with that wilted bit of bait.

Not the whitelist, the kill file. A small select group--even Mr. Many Nyms isn't in it.

Sayonara.

Phil Hobbs

I wish I knew then what I know now...

mike

You won't be missed. ...Jim Thompson

Ha! In twenty years (give or take), you'll wish you knew now what you knew then..... :)

(I staying well clear of this argument!)