DC Wave Questions

No he didn't.

Ken

Sorry, your time's up.......

Ken

Is this the five-minute argument, or the full half hour?

"Electricity is of two kinds, positive and negative. The difference is, I presume, that one comes a little more expensive, but is more durable; the other is a cheaper thing, but the moths get into it." (Stephen Leacock)

[some stuff]

Problem is, you're losing miserably... ;-P

--
The Pig Bladder from Uranus

N

So? Did anyone claim there was?

Bud's useage meets widely accepted and well known English. What *you* think about it is immaterial.

Provide some context that demonstrates it then, because it doesn't appear to be what you are now claiming.

--
Floyd L. Davidson           
Ukpeagvik (Barrow, Alaska)                         floyd@barrow.com

The only person that matters here is Don, and that he knows I didn't insult him.

Get a life.

John

--- Since, by your own admission, the boiling and freezing point temperatures of water are pressure dependent, I invite you to state what pressure would be required to be exerted on a volume of liquid water in order to cause it to boil at 0°C.

-- John Fields Professional Circuit Designer

I apparently did not make myself clear. My comment was not about Don Lancaster, nor did my post in any way allude to Don Lancaster, nor did the post I WAS commenting on refer to Don Lancaster.

Bud's post did not make a damned thing clear by screwing up and adding adding "[Don Lancaster]."

Did I make it abundantly clear?

On the other hand, it's nice to hear he did it using proper style.

Don

--
So, you miserable, troublemaking piece of shit, you've decided to take
on John Larkin? 

Big mistake.  

There's no way you can even begin to think about getting close to his
track record, let alone even get into the stadium, so why don't you
just quit before you embarrass yourself by not even being able to
leave the starting blocks?

The boiling and freezing points are pressure dependent. Not only that, a certain amount of heat must be lost or gained (latent heat, I believe, is the term) before the change of state occurs. I am simply going by memory of my old Physics classes, and I have no idea what pressure would be required to allow water to boil at 0 C. I think other substances have boiled at lower temperatures than that at STP though.

Tom

"Tom MacIntyre" wrote in message news: snipped-for-privacy@4ax.com...

Strictly speaking, the change of state occurs as the latent heat is transferred, not after.

If you peruse the phase space of water at

you will see that there is no liquid/vapor boundary at 0 oC. At a range of pressure well below standard atmospheric, it could happen near 0.01 oC.

John's challenge is a bit of a trick and appears to show he knows how to read that graph and accompanying table.

--
--Larry Brasfield
email: donotspam_larry_brasfield@hotmail.com
Above views may belong only to me.

Good one, John!

Best regards, Spehro Pefhany

--
"it's the network..."                          "The Journey is the reward"
speff@interlog.com             Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog  Info for designers:  http://www.speff.com

--
At one atmosphere of pressure, the "latent heat of vaporization" of
water is 540 calories per gram and is the amount of heat required to
change liquid water at 100°C into steam at 100°C.  That's used to
great advantage, in reverse, in steam heating systems where steam
which has been generated in a boiler is forced to condense into liquid
water in a remotely located radiator and release that heat into the
environment surrounding the radiator when it (the steam) changes
state.

Why should he or I? The error wasn't ours and I for one don't need to prove it to anyone. You are out of line for asking for it.

In other words, go research it yourself.

Don (B)

--
:-)

Are you saying that it could happen at 0.01C but not at 0.00C, because you see something in that chart which says water is liquid at 0.01C and not at 0.00C?

I don't see that in the chart at all. The chart does not have sufficient resolution. It doesn't discuss that in the text either.

Did you mean something else?

--
Floyd L. Davidson           
Ukpeagvik (Barrow, Alaska)                         floyd@barrow.com

The answer of course is: not much.

--
Floyd L. Davidson           
Ukpeagvik (Barrow, Alaska)                         floyd@barrow.com

Up the paddle without a creek? ;-}

Ed