| 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.
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"!
| | 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.
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.
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
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.
|
|
| .... The lower
| atmospheric pressure only means they are able to boil water
| usling fewer BTUs because the boiling point temp is lowered.
|
|
| Hmm... and heat is energy... so therefor, if a propellor
| adds energy to the water, and by doing so lowers the
| pressure enough that the boiling point temp is lowered....
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?
.... 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.
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, unless
your dictionary either defines a minimum possible temp or
specifically excludes propellors. Does 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?
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!
... 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.
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.
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."
Is that what your dictionary says? That it's only boiling if
X amount, or greater, of heat is added?
| 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.
DSK