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Re: lateral mosfets vs. bjts in audio amplifier design

E

Eeyore

Kevin said:
I can state without hesitation, that the idea of a mass shell enclosing this
universe, does not fit the observations. Its the actual technical details
that matttter, not some ad-hoc well maybe...

That's a shame.

I always though of the Universe as being a bit like some kind of an experiment
in a 'goldfish bowl' sitting on God's ? coffee table.

Graham
 
E

Eeyore

Kevin said:
Free will, essentially by definition, is the ability of an object, an "I" to
make a decision that "I" wants. The fact that an aspect of free will is non
predictability i.e. not determinism, does *not* imply that it must be
random. Free will is the ability to chose for oneself. If the choice is
random, than there is no choice. This is trivially obvious.

If free will doesn't exist then who's making the decisions ?

Does a God (say) WANT wars, famine and blight for example ?

Graham
 
E

Eeyore

John said:
Consider that brains that evolved as hunters and gatherers are also
capable of differential calculus, reading at 400 wpm, designing
electronics, building and flying jet planes...

The thing that fascinates me is that of all the animals on the planet only humans can
communicate as effectively as we do.

I've seen clear examples of animals *want* to communicate better but without speech they're
in trouble. I did get to understand a bit of 'cat language' but it's quite restricted it
seems. They certainly know how to say NO though !

Graham
 
E

Eeyore

I didn't want to get into it. but some speak designs start their HF
rolloff at 10KHz deliberately. Most people can't stand the tsst tsst
tsst sound of many tweeters.

They just have lousy tweeters then. My gold foil leaf tweeters (similat somewhat to a ribbon design)
are a delight to listen to, open and 'airy'.

Graham
 
E

Eeyore

John said:
Sarah is cool. We're not afraid of smart, funny, competent women here.

Who want to teach Creationism in school and believe in the ultimate battle of
Good vs Evil ?

I'd say she's a raving crackpot.

Graham
 
E

Eeyore

Jamie said:
Tea table don't you mean?

Since when did the British give up tea and start being
socialistic with coffee?

I have never drunk tea other than flower and fruit teas. It always tasted of dead
leaves to me which isn't very appealing. I'd say coffee was more popular here now.

Graham
 
J

Jamie

Eeyore said:
Kevin Aylward wrote:




That's a shame.

I always though of the Universe as being a bit like some kind of an experiment
in a 'goldfish bowl' sitting on God's ? coffee table.

Graham
Tea table don't you mean?

Since when did the British give up tea and start being
socialistic with coffee?


http://webpages.charter.net/jamie_5"
 
E

Eeyore

John said:
Where did the universe come from anyhow?

I long ago ceased worrying about it. I'm sure neither Yahweh nor Allah nor any other
deity was responsible.

You can't distinguish between good things and evil things?

Sure I can. My stepmother wanted my father to join a coven of black witches. He told
me probably because there was no-one else he could turn to on such a matter. There's
no doubt she was evil.

Then why does anything matter?

But why does she want a war 'between good and evil' when her perception of evil is
coloured by a rigidly fundamentalist religious outlook. No better than Usama bin
Laden in my book.

I'd sure rather have lunch with her than anybody else in the race. She
and McCain are genuine; Obama and Biden are fakes through and through.

I'd reckon I'd trust McCain but not with her at his side. Obama has AIUI been
criticised for weak policy statements. In a rapidly changing world that may give him
the edge, instead of being sunk by erroneous election 'committments'.

Graham
 
K

Kevin Aylward

Yes. It is an unknown.
and my hypothesis at least hints at an explanation.

It doest, as it does not agree with the actual details of observations.
Beside, I talked it over with Hal Puthoff a year or so ago, and he
liked it.

Yeah...right....

But as Richard Dawkins points out,. all opinion are *not* equal.

The probability, today, of a novice, uneducated in standard physics, having
anything relevent to say, is 0.0000000000001%. Sorry, but this is just the
way it.

The field is way too technical, with way too many truly clever people
already looking at the problem 150 years ago, almost no one had a PhD in
physics, and physics didn't too know much.
I don't care much for the theatricals of the "Einstein was wrong
brigade",

but wasn't Eistein part of the "Newton was wrong" brigade in his own
way?

Einstein was a professional physicist, and Newton wasn't "wrong", he's
approximations were approximations. Conservation of momentum is still as
true today, as then.
---
You can state it without hesitation, but unless you can explain how
the _observation_ that the red shift accelerates with distance
doesn't agree with the hypothesis that a huge gravitational
attraction from an external source is the cause of the acceleration,
the statement is baseless.
---

Not at all. If I recall correctly, I already had that same daft idea, and
posted the question to the one of the physics NGs some while back, and got
an answer from a noted expert as to the folly of such a suggestion. Noting
that I am not totally ignorant of such matters in general
(http://www.kevinaylward.co.uk/gr/index.html).
---
In the end, yes, but it all starts with an ad-hoc well maybe.

Don't you think that some time elapsed between Einstein's first
inkling that matter and energy were two sides of the same coin and
his formal E = MC²?

Einstein was not the first to propose such a relation.

If you want to re-write everything that is currently consider astrophysics,
sure.

Kevin Aylward
www.kevinaylward.co.uk
 
K

Kevin Aylward

Eeyore said:
If free will doesn't exist then who's making the decisions ?

No one. the universe is a machine that undertakes actions for no purpose at
all.

There is a Darwinian Machine, that externally acts as a black box that is
conceivable, indistinguishable externally as entity that makes decisions.
That's about it.

Kevin Aylward
www.kevinaylward.co.uk
 
K

Kevin Aylward

John said:
Sarah is cool. We're not afraid of smart, funny, competent women here.

John

Oh Dear... Sarah palin is a complete and utter numpty. It is seriously
frightening to even consider that she could be the boss of the US. She is a
women that likes to shop, expensively, that's about it.

I am absolutely stunned by your view here John . Is this a wind up?

Kevin Aylward
www.kevinaylward.co.uk
 
M

MooseFET

My brother-in-law just gave me a briefing on Sarah Palin. Is she really that
dreadful ? It made my blood run cold.

She is a theocrat + Dick Cheney with breasts. She believes that the
VP has actual powers beyond breaking ties in the senate. She has
motivated that part of the republican base that wishes to centralize
all power in Washington DC and into the hands of a few elite.
 
E

Eeyore

MooseFET said:
She is a theocrat + Dick Cheney with breasts. She believes that the
VP has actual powers beyond breaking ties in the senate. She has
motivated that part of the republican base that wishes to centralize
all power in Washington DC and into the hands of a few elite.

This sounds more like what my brother-in-law was saying and with McCain's health
in question she could be President.

Graham
 
M

MooseFET

On Oct 24, 11:10 am, John Fields <[email protected]>
wrote:
[...]
The accelerating red shift with distance and the inverse square law
hints at something unbelievably massive toward which the distant
red-shifted galaxies are hurtling.

There are several other theories that also explain it. Among them are
some that I like to bring up from time to time.

(1) The Cosmic Body Odor theory
The rest of the universe really is running away from us and yes it is
personal.

(2) The Invisible Magic Unicorns theory
It is all caused by invisible magic unicorns. There will never be an
explanation of where the magic unicorns came from.

The physicists I have spoken to about it tend to prefer (1) over (2).

On the more serious side, we assume that gravity follows a simple
inverse square law mostly because it fits the data so well at small
values of "r". If that is just the first term in a much longer
series, the curve could be fit.

A wall of some sort perhaps?  But in every direction?  A bubble of some
sort?  

Why not?  

A wall wouldn't make the right curve. The acceleration from a wall
would grow too rapidly at the extreme distances and too slowly short
of that. You could sort of fit the curve by making the wall extremely
massive and extremely far away but never accurately.


Imagine an infinitely or nearly infinitely dense Universe which has
always been there and in which are exerted forces which from time to
time cause a cavitation-like event to occur which creates a bubble into
which outgasses material from the Universe and forms our little bubble
universe, which wasn't there before, all at once.

I assume this is some force other than gravity. The field of gravity
from masses in two directions cancels producing no effect at the mid
point between them. This would not "cause the outgassing".

In quantum physics something the size of the universe could come into
existence all on its own for no reason. The odds are extremely low
but we would only exist to ask the question in the one place where it
happened so to us the odds would be 100%.

Also, since we don't know what rules govern the Universe, who's to say
it isn't heaven?

Or God?

Or the invisible magic unicorns.
 
M

MooseFET

The Sziklai pair is one of my faves. I only just discovered it had a nameto
it.http://en.wikipedia.org/wiki/Sziklai_pair

I've often wondered what a triple of that configuration might perform like.
Speed problems possibly ?

I have used the triple version. The first transistor was a 2N4402,
the second a TIP-35 and the third was an array of TIP-36s. The
TIP-35/6 are so much slower than the 2N4402 that the speed of it
doesn't come into it.
 
E

Eeyore

MooseFET said:
I have used the triple version. The first transistor was a 2N4402,
the second a TIP-35 and the third was an array of TIP-36s. The
TIP-35/6 are so much slower than the 2N4402 that the speed of it
doesn't come into it.

Well a 4402 is somewhat faster ! I'm no fan of TIPs for their sloth.

What was your opinion of the performance ? And indeed what was the application ?

Graham
 
E

Eeyore

MooseFET said:
On Oct 24, 11:10 am, John Fields <[email protected]>
wrote:
[...]
The accelerating red shift with distance and the inverse square law
hints at something unbelievably massive toward which the distant
red-shifted galaxies are hurtling.

There are several other theories that also explain it. Among them are
some that I like to bring up from time to time.

(1) The Cosmic Body Odor theory
The rest of the universe really is running away from us and yes it is
personal.

(2) The Invisible Magic Unicorns theory
It is all caused by invisible magic unicorns. There will never be an
explanation of where the magic unicorns came from.

The physicists I have spoken to about it tend to prefer (1) over (2).

On the more serious side, we assume that gravity follows a simple
inverse square law mostly because it fits the data so well at small
values of "r". If that is just the first term in a much longer
series, the curve could be fit.
A wall of some sort perhaps? But in every direction? A bubble of some
sort?

Why not?

A wall wouldn't make the right curve. The acceleration from a wall
would grow too rapidly at the extreme distances and too slowly short
of that. You could sort of fit the curve by making the wall extremely
massive and extremely far away but never accurately.
Imagine an infinitely or nearly infinitely dense Universe which has
always been there and in which are exerted forces which from time to
time cause a cavitation-like event to occur which creates a bubble into
which outgasses material from the Universe and forms our little bubble
universe, which wasn't there before, all at once.

I assume this is some force other than gravity. The field of gravity
from masses in two directions cancels producing no effect at the mid
point between them. This would not "cause the outgassing".

In quantum physics something the size of the universe could come into
existence all on its own for no reason. The odds are extremely low
but we would only exist to ask the question in the one place where it
happened so to us the odds would be 100%.
Also, since we don't know what rules govern the Universe, who's to say
it isn't heaven?

Or God?

Or the invisible magic unicorns.

You forgot the Flying Spaghetti Monster !
http://en.wikipedia.org/wiki/Flying_Spaghetti_Monster

Graham
 
K

Kevin Aylward

Why did you not answer the above? What makes *you* *more* quailified to
dream up some comic book explanation that is more valid?

It most certainly does not.
since there is no other rational explanation
for the acceleration of the red shift with distance other than an
external gravitational source.

No. Other masses cannot explain the acceleration.You need to give credit
where credit is due, like, what university did you get you phd in
astrophysics at?

All you have here is a vague idea, of well, err..mass attracts things, so
there must be mass attracting our universe to make the universe mass move
faster. It don't work like this. You need to show that this idea actual
accounts for the facts in detail.

If there is a distribution of mass outside, pulling the mass of our
universe, it will have (approximately) say, 1/R gravitational potential
acting on our universe (or someother depening on the distribution). Our
galaxies are all at different distances from this net external potential,
hence the relative effect that this external potential should on each galaxy
can be quantified. The specific, different, accelerations experienced by,
and measured for, our galaxies can not be accounted for by any assumption
that there is any distribution of mass outside our universe. Its that
simple.

Now, what you are doing here is stepping out of your area of any expertise
that you may have, i.e. electronics. If you can convince me that you
understand the math and theory I have here,
http://www.kevinaylward.co.uk/gr/index.html, then it may be possible to
explain to you the calculations. However, I know as fact that you don't. If
you did, you would already know the correct answer to this issue, that is,
external mass cannot be the source of the acceleration, when you plug in the
*actual numbers*.

Look, physicists use general purposes simulation programs. It is simple for
them to plug in mass distributions, and compare with observations. Trust me
dude, its already been done. Exotic matter is the thing invented when all
the other alternative explanations failed. The idea that a non specialist
like you, with all due respect, can have an idea in physics that contradicts
the experts, and has value, is essentially, zero. Maybe 200 years ago, but
today, the subject is way to sophisticated now for any non specialist to
have any relevance.
If you know about anything that could be causing it, how about letting
us know about it?
---

I don't know what is causing it, other than it aint external matter, because
that is ruled out by observations, as noted above.

You missed my point. I now see that you think I was dubting that you talked
with Hal Puthoff. My comment was that I care a %^&* about Hal Puthoff crank
brained err. so called theories. That is, "yeah... right,... Hal is a person
that is like.. credible in physics?".

http://en.wikipedia.org/wiki/Harold_E._Puthoff - "Puthoff joined the Church
of Scientology in the late 1960s"

"In a study of the alleged psychic abilities of Uri Geller, Ingo Swann, Pat
Price, Joseph McMoneagle and others. Both Puthoff and Russell Targ became
convinced Geller and Swann had genuine psychic powers.[1] More conventional
explanations for the alleged abilities have also been advanced."

The list is endless. Puthoff is a fruit case.


Oooops sorry, I missed a 0.



No. I understand just what is actually involved. I understand why physics is
the way it is. Amateurs, usually don't. all they get is the thin edge of
wedge as to why.

Yes, it is sad when people really don't know when they are out of their
depth, and I mean this generally, not specifically applied to you.

The reality is, is that it is a fact, that some people are simply not
qualified to make opinions on certain matters.
"2 Gravitational fields are generated by a mass."

If that's true, (and observation does seem to indicate that it is)
then for mass to be accelerating there must be a gravitational field
attracting it.

There can be an entity that has effectivly, negative mass-energy.

http://en.wikipedia.org/wiki/Negative_mass#Negative_mass

In the case of distant galaxies, observation of their red shifts
indicates that the galaxies are receding, and that the more distant
the galaxy the higher its velocity of recession.

The exact numbers are very important. Not just "they are accelerating".
That, in turn, indicates that those galaxies are accelerating toward
what _must_ be a mass which is generating the gravitational field.

No. See above. Calculations (simulations) show that the specific
accelerations actually observed are not consistent with any hypothetical
external mass. If it were so, these physicists doing the simulations would
have put this forward this as the explanation. Dah... This is truly obvious.
Why would they not do so? Do you believe that they are that daft or
deceitful?
Since we see this acceleration everywhere we look, the mass must be
surrounding us at a distance greater than the galaxies receding the
fastest and, since our universe is mostly empty, that makes our
universe essentially a bubble surrounded by a mass capable of
attracting galaxies to itself.

Please present your detailed calculation showing that such a distribution of
mass can actually produce the actual accelerations measured.

You need to give credit to the 10,000s of way better qualified experts than
you, that disagree with you. They do so for a qualified reason.


Kevin Aylward
www.kevinaylward.co.uk
 
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