General Questions

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Cools when expanded. That's why an aerosol can gets cold if you spray it long enough.
 
Actually... the aerosol can gets cold because the propellant is changing from a pressurized liquid to a gas. That's what provides the spray pressure. This phase change requires energy... which comes from heat in the surrounding air. That's why the can (and anything you spray) becomes cold.

When you cool air, you're removing heat energy from it, which compresses it. That heat goes into whatever medium you use to cool the air. When it expands again, it's absorbing heat from the environment.

When you don't change the temperature, but instead compress something, you're changing the kinetic energy of air molecules into heat... more pressure equals less kinetic energy as molecular motion becomes restrained... which is why compression generates heat.
 
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Expansion cools air as well, not just the state change from liquid to gas. If you compress air in a tank, allow it to return to ambient temperature, and then release it, you can measure that the expanding air is cooler than ambient.
 
And all of this is why I do not order ice when I get a carbonated drink from a fountain machine. It comes out cold.

Some machines have built in coolers, but not all. Either way they all come out cold. I can't count the number of times I have tried to explain that the compressed air used to carbonate the soft drink makes it cold when it decompresses to people.

It goes like this:
"No ice, but don't you want a cold drink?"
"Yeah, I do. But science already took care of it. And I also have twice the drink you do in the same size cup."
 
And all of this is why I do not order ice when I get a carbonated drink from a fountain machine. It comes out cold.

*snip*

And I also have twice the drink you do in the same size cup."
Finally someone who shares my feelings about ice! As long as it's colder than 65°, I'm good. That and I despise watered-down drinks and I equally despise chugging a drink just to avoid said watered-downness.
 
1,000,000 internet points for whoever can tell me the answer to this:

WHY are they constantly playing "Scotland The Brave" at the Beijing Olympics opening ceremony?!? :confused: :lol: It's beyond super-random...
 
1,000,000 internet points for whoever can tell me the answer to this:

WHY are they constantly playing "Scotland The Brave" at the Beijing Olympics opening ceremony?!? :confused: :lol: It's beyond super-random...

I think daan could probably answer that for you!
 
It's not just Scotland The Brave, either... but assorted bagpipe-related Scottishness. What next? Will the official Olympic soft drink be Irn-Bru?
 
It's not just Scotland The Brave, either... but assorted bagpipe-related Scottishness. What next? Will the official Olympic soft drink be Irn-Bru?

Next thing you know the athletes will start going commando!
 
It's not just Scotland The Brave, either... but assorted bagpipe-related Scottishness. What next? Will the official Olympic soft drink be Irn-Bru?

Because I'm sure the crazy Chinese need more sugar, TM! ;)
 
Must be because bagpipes were invented by the Chinese, and Scotland the Brave is one of the few tunes that bagpipes can play?

Or maybe there are more Chinese restaurants in Scotland than there are in China (per head of population)

Oh, and tossing the caber is now an Olympic sport.
 
1,000,000 internet points for whoever can tell me the answer to this:

WHY are they constantly playing "Scotland The Brave" at the Beijing Olympics opening ceremony?!? :confused: :lol: It's beyond super-random...

The commentary said that the Director heard bag-pipes being played when he was on holiday and thought their sound was appropriate.
 
One of my aunt's coworkers has one I guess... ? I figured it had to be aftermarket or parts since I've never heard of Porsche producing a G3.
 
And all of this is why I do not order ice when I get a carbonated drink from a fountain machine. It comes out cold.

Some machines have built in coolers, but not all. Either way they all come out cold. I can't count the number of times I have tried to explain that the compressed air used to carbonate the soft drink makes it cold when it decompresses to people.

It goes like this:
"No ice, but don't you want a cold drink?"
"Yeah, I do. But science already took care of it. And I also have twice the drink you do in the same size cup."

As I do understand what you mean and I too understand that putting more ice in the cup gives you less liquid but I still do put a small amount of ice in there. It's to keep the liquid cool throughout. I usually take a while to finish my drink so the ice keeps it at a cool temperature and I know the difference because I've put no ice in a cup and it was warm by the time I was finished.
 
I have always wanted to find out the name of an alarm, but searching on google and youtube is bringing me nothing but frustration.

I can't find a video clip with the sound in it, so i'll have to try my best to describe it. It goes boooooooooop beep, has a pause, then repeats. I've heard it in movies before during self destruct sequences and in submarines.

Any help would be greatly appreciated, it's driving me nuts not being able to find it.
 
I have always wanted to find out the name of an alarm, but searching on google and youtube is bringing me nothing but frustration.

I can't find a video clip with the sound in it, so i'll have to try my best to describe it. It goes boooooooooop beep, has a pause, then repeats. I've heard it in movies before during self destruct sequences and in submarines.

Any help would be greatly appreciated, it's driving me nuts not being able to find it.

Sounds like a self-destructing Submarine Alarm to me!
 
Hard to say. Basically, media with a "liberal" viewpoint tends to take the more "liberal" side on issues: the side asking for reform in regards to free trade, industrialization, environmental policy... while a more "conservative" media takes the side of big business or the conservative faction in government... typically... of course, from what I see of media, most simply latch onto whatever makes the best sound bites... except in the US, where there's a more clear delineation between more wildly "liberal" (uhmmm... New York Times) and more obviously "conservative" (Fox) news channels.

Of course, "liberalism" generally asks for the protection of civil liberties and freedom from "big government". The "Free Market" is a liberalist idea.

But some of the news and agendas on so-called "liberal" channels don't fit that... eco-politics and health politics on everything from tail-pipe emissions to smoking bans are not issues of civil liberty, but of dictating to people how to live (granted, freedom from death is a freedom... but where does the freedom to choose how we die come into this? We have the right to choose our sins! I'm serious on this... and I'm not in favor of banning, say, transfatty acids on the flimsy grounds that it's bad for us... because even too much water can kill a man.) In other words, these agendas aren't for liberty at all, but for the regulation of human activity by government "for their own good".

Conservatism technically means the move to preserve the status quo... but then again, modern conservatism is slightly different. It frowns upon big government interfering in the liberties of people and business... argues for self-regulation for business, and is of the mind that changing the established government on a whim is bad for things... in other words, leave the government as it is, and let people decide on their course of action in other things (in other words, let people decide if smoking, fat, etcetera is bad for them... of course, I don't rightly know if it's the liberal side or the conservative side of the argument pushing for marijuana legalization... :lol: )

I have no idea how the increased monitoring of citizens by government, warrantless arrests and detainment, and the invasion of other countries, etcetera, since 9/11 fit in with this viewpoint... but that's a government thing... (and yes, some of the Dems also voted in favor of Iraq)... and possibly not a "conservative" thing per se.

----

Many outlets worldwide just parrot whatever press release comes their way, from whatever source, and don't seem to have the same strength of bias, except where the news may affect their parent company... which is why there's a lot of restrictions in place against a monopoly of multiple media sources by one company... we've often argued here about whether media has a liberal or conservative slant... and a lot of people have evidence to prove both for a number of US sources... but I suppose that's because those sources are all closer to the news in particular and are affected directly by the events involved due to corporate interestsor due to political agendas of their corporate parents... which affects their neutrality. From outside, both points of view receive equal reporting... well, equal only when the sound bites are newsworthy... :lol: ...obviously, "liberal" issues are newsworthy because they're often complaints about the state of the world. Printing or broadcasting news saying that everything is "hunky dory" just won't cut it.
 
How do I share a PDF file on a website? Do I need to find a file hosting site just like an ImageShack?
 
That did work but it murdered the quality of the pdf scan that I uploaded.

Maybe I can mess with some settings to clear it up. Thanks 👍
 
Of course, "liberalism" generally asks for the protection of civil liberties and freedom from "big government". The "Free Market" is a liberalist idea.

Although niky makes and excellent post, I have to clarify the statement above.

"Liberalist" in this case refers to classical Liberalism, which is an almost non-existant concept in the modern world. Very few philosophies and even fewer politicians actually support this view any more. About the only remaining bastions of this viewpoint are the Objectivists and the Libertarians (I happen to be both; like numerous others on this forum).

"Liberal" in the modern sense does still mean that a person or entity supports the protection of civil liberties but it definitely does NOT support freedom from big government. On the contrary, modern liberals are much in favor of big government, in the form of social welfare, strict regulation of business and economy, and the general idea of the State as nanny to its citizens.

Modern Conservatism would actually be closer to classical Liberalism, except that most modern Conservatives fail to grasp (or actively dislike) the important concept of civil liberties and therefore strive to control people's personal freedoms (anti-drug laws, anti-homosexuality laws, anti-choice laws).

In general, for whatever variety of reasons, the news media historically favors the modern liberal political viewpoint. With a few notable exceptions (Fox News as mentioned above), news stories are frequently portrayed as shedding a positive light on liberal causes and a negative light on conservative ones.
 
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