"DSK" wrote in message .. .
| | Is electricity the only thing in the universe which will
| | produce heat?
|
|
| Paladin wrote:
|
| No but it's the only thing on earth I know of that has the ability to cause a propeller attached
| to a yacht to boil water.
|
| Really? Ever heard of "fire"? It's the latest technology,
| great for producing heat.
But you can burn a boat to the waterline all day long and it will
never get the water around the propeller to boil. There's just
too much water to heat.
| And now, just to show how truly impossible it is to actually
| teach you something, I will continue to demonstrate how
| wrong you are about "boiling"!
Oh, I just can't wait for yet another display of speculation...
| | | When people who live in the mountains make their tea and/or
| | | coffee, do they boil their water or does the lower
| | | atmospheric pressure mean that they are "vaporizing" it?
| |
| |
| | Paladin wrote:
| | They are adding heat only so they are boiling it.
| |
| | What about the energy expended in carrying it up the
| | mountainside?
|
|
| What if it came down the mountain stream? Your question
| and mine are equally nonsensical as neither are part of
| the equation.
|
| What equation? So far you have insisted that whole issue can
| be explained in plain English. Efforts to introduce math &
| science have been rejected by you in favor of the dictionary
| (and it's not even THE Scrabble Dictionary). Maybe you have
| a problem with math? Anyway, I'm putting it in plain simple
| English.
The equation figurative speaking. You seem to have a real
problem with the English language. You've no imagination,
little comprehension and even less vocabulary. I suppose
I need to use simple 8th grade words so I can communicate
with you.
| Energy has been added to the water. If it "came down the
| mountain stream" then the Sun carried it up there. Either
| way, the kettle on a mountain top is at a higher energy
| state than water at atmospheric pressure at sea level.
Well, whoop-de-doo! You still need to heat the water up
in order to get it to boil.
| The lower pressure means that less *additional* energy has
| to be added to make it boil. But that energy has been added,
| or the water would never boil
Sorry, but energy is to vague a term. What if you put the
water into a container and onto a rail job and took it to
the drag strip and accelerated it to 200mph? It would have
more energy (kinetic) but it would be no closer to boiling.
Stick with "heat" as that's the word used in the definition
of boil. You're confusing yourself with your substituting
energy for heat. Heat is a form of energy but there are
lots of different kinds of energy.
| Wait a minute, let me back up a step for you. It takes a
| fixed amount of energy to raise a given amount of water a
| given temp, did you know that? Look up the term "specific
| heat" in your dictionary.
And what's this sidetrack got to do with boiling water or
more specifically the definition of boiling? If one could
put a cup of water in a rocketship and accelerate it to
99.9% of the speed of light one would be adding almost
infinite energy (E+mc2) but the water would be no closer
to boiling until one added heat. (BTUs). So please get
out of here with all this energy crap. It'll only confuse
you more...
| |
| | .... The lower
| | atmospheric pressure only means they are able to boil water
| | using fewer BTUs because the boiling point temp is lowered.
| |
| |
| | Hmm... and heat is energy... so therefore, if a propeller
| | adds energy to the water, and by doing so lowers the
| | pressure enough that the boiling point temp is lowered....
As I stated above heat is a form of energy but energy isn't
necessarily heat. You seem to equate the two.
If the definition of boil was to heat to the vaporization
point by adding energy as I stated above the cup of water
going 99.9% of the speed of light has almost infinite energy
but is no closer to boiling than it was at rest.
| Paladin wrote:
|
| Boiling temp. There's that boil word again. You're still guilty
| of using a word that means to add heat.
|
| Heat is energy. Did you know that?
Heat is a form or category of energy, yes. Since you seem to
like math equations, here's what you're saying: "Heat = energy."
Like any good math equation this can also be expressed as,
Energy = heat." WRONG! This proves the original equation is
incorrect as well. If you're gonna equate terms they'd damned
well be equal.
| .... You can combine it
| with another word but that doesn't change the meaning of
| the word boil.
|
|
| I'm not changing the meaning of the word, I am pointing out
| how it is applicable in cases where you don't think it is.
And I've pointed out by my 99.9% of C (speed of light) how
wrong you are...
| If water can be boiled at a lower temp on a mountain top,
| then it can be boiled at a lower temp by a propeller,
No, it cannot because the prop doesn't boil the water. The
low pressure zone created by the prop vaporizes water.
What's happening around a prop does not meet the definition
of boil.
| unless
| your dictionary either defines a minimum possible temp or
| specifically excludes propellers. Does it?
Yes, it does exclude propellers as there is no mention of
propellers and it's been made abundantly clear that props
cannot add enough heat to the water to boil it.
| What about in a
| balloon far above the mountain top, that would be at a lower
| pressure and thus lower temp even yet.... correct?
The boiling point of the water would be lower, yes! But,
you still need to add heat to get it to boil...
| Now look at the another situation: ever hear of a cracking
| column? It is how gasoline and diesel fuel are made. The
| official name is "fractional distilling." Look it up in your
| dictionary. A cracking column has heated fluid (such as
| crude oil) pumped into it and then released into a lower
| pressure vessel. Does it boil? You better believe it does,
| if it didn't you'd be sitting in the dark instead of reading
| this!
That's because heat has been added so therefore it boils.
If no heat had been added before the pressure was lowered
it would not boil.
| ... As I argued with Gilligan, and he finally concurred
|
|
| Actually, I don't think he concurred at all. I think he
| preferred to retire from the discussion instead of showing
| your folly.
Wrong! Gilligan has a keen intellect. He was able to see my
point and could not see any way to refute it. After all this
entire discussion is about a dictionary definition. You cannot
argue with words once you accept their definition.
You cannot call vaporization of water boiling of water and
that's what your who argument is attempting to do. Boiling,
by definition, means to vaporize by adding heat and not
to vaporize by lowering pressure...
| a propeller does not add enough heat to the water to boil it. It
| only lowers pressure in some cases enough to vaporize water and
| cause cavitation, so to say a propeller boils water is just plain wrong
| according to the definition of the verb "to boil".
|
|
| Wrong
|
| Water (or any fluid) can be boiled at a wide range of temps
| & pressures. We agreed on this.
Water at sea level upon which a yacht propeller operates cannot
be boiled by a propeller. Never has never will...
| At low pressure, very little heat need be added. You agreed
| that it takes less heat to boil water at the top of a
| mountain because of the lower pressure. Now you are
| insisting that there is some definite ratio of heat added to
| pressure reduced or somehow it isn't "boiling."
We're still talking about lowering pressure and not adding heat,
or at least not enough heat to bring the water to it's boiling point
which is dependent upon the atmospheric pressure at the
propeller. Sure, there is a modicum of heat added because the
water molecules are set in higher motion than before they were
agitated by the prop but this does not make enough heat to raise
the water to its boiling point under more than an atmosphere of
pressure (the depth of the water adds a % of an atmosphere).
As long as we're talking about vaporization via low pressure
we're, by definition, not talking about boiling.
| Is that what your dictionary says? That it's only boiling if
| X amount, or greater, of heat is added?
The dictionary defines boil this way: "to heat or become heated to a temperature (boiling point) at which vapor is formed and rises
in bubbles water ~s and changes to steam..."
|
| | BTW I can think of a simple test to prove you are or are not
| | the CraptonŽ. Explain, in your own words, the term 'hull speed.'
|
| For a displacement boat, a heavy deep-keel boat, the maximum speed a given hull can attain from wind power is called "hull
speed" and is largely dependent on the waterline length of the boat. Hull speed is expressed as 1.34 X the square root of LWL, or
length of waterline. If a cruising sailboat has a waterline length of 36 feet, she should be able to sail 1.34 x 6, or approximately
eight knots.
|
http://www.sailnet.com/collections/a...leid=colgat006
|
| I think you're an imposter. The real CraptonŽ would never
| have cribbed an important definition like that.
Cribbed? I gave the link. How do you know I'm not Steve Colgate?
Paladin
|
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