 |
 | Home | Contact Us | FAQ | Search & Site Map | Link to Us |
 | Sign In | Join | Other 45 Sites in Network |
| HomeArticlesDiving DestinationsLearning Scuba DivingMarine LifeMiscellaneousDiscussion GroupsGeneralScuba EquipmentScuba LocationsAustralian ScubaUK ScubaDirectoryScuba Clubs |
Scuba Forum / General / January 2006Let's tap that tank of cold
A filled scuba cylinder sits at room temperature, say 70 degrees. When you open the valve air escapes and the cylinder begins to cool. Where does the cold come from? The tank and air in the tank are 70 degrees, the air in the room is 70 degrees. Where is the cold being stored? If cold is stored, why can't you feel it? Let's search hot air to get cold facts. >A filled scuba cylinder sits at room temperature, say 70 degrees. When you > open the valve air escapes and the cylinder begins to cool. Where does [quoted text clipped - 4 lines] > why > can't you feel it? Let's search hot air to get cold facts. There's no such thing as cold. It's simply the absence of heat. When you release the stored heat, cold is what is left. Lee >A filled scuba cylinder sits at room temperature, say 70 degrees. When you > open the valve air escapes and the cylinder begins to cool. Where does [quoted text clipped - 4 lines] > why > can't you feel it? Let's search hot air to get cold facts. The cold was already there, Skippy. > A filled scuba cylinder sits at room temperature, say 70 degrees. When you > open the valve air escapes and the cylinder begins to cool. Where does the > cold come from? The tank and air in the tank are 70 degrees, the air in the > room is 70 degrees. Where is the cold being stored? If cold is stored, why > can't you feel it? Let's search hot air to get cold facts. Track the BTU's from ambient, to compressed, to ambient. You'll see.  Signature"A prudent man foresees the difficulties ahead and prepares for them; the simpleton goes blindly on and suffers the consequences." - Proverbs 22:3 > > A filled scuba cylinder sits at room temperature, say 70 degrees. When you > > open the valve air escapes and the cylinder begins to cool. Where does the [quoted text clipped - 3 lines] > > > Track the BTU's from ambient, to compressed, to ambient. You'll see. And can BTUs be used to buy Marine Corps dollars? If not, then I doubt ben would have any interest in them. Dennis > A filled scuba cylinder sits at room temperature, say 70 degrees. When you > open the valve air escapes and the cylinder begins to cool. Where does the > cold come from? The tank and air in the tank are 70 degrees, the air in the > room is 70 degrees. Where is the cold being stored? If cold is stored, why > can't you feel it? Let's search hot air to get cold facts. Google Charles's Law or if you really want to know about hot air read the gun threads. Cam >> A filled scuba cylinder sits at room temperature, say 70 degrees. When >> you [quoted text clipped - 8 lines] > Google Charles's Law or if you really want to know about hot air read > the gun threads. Don't be harsh, John's doing the best he can. > A filled scuba cylinder sits at room temperature, say 70 degrees. When you > open the valve air escapes and the cylinder begins to cool. Where does the > cold come from? From inside. The tank and air in the tank are 70 degrees, the air in the > room is 70 degrees. Where is the cold being stored? Inside the tank .. If cold is stored, why > can't you feel it? Let's search hot air to get cold facts. Of course you can. All you need is to find a way to stick your finger into the open yet pressurized bottle. Matthias > A filled scuba cylinder sits at room temperature, say 70 degrees. When you > open the valve air escapes and the cylinder begins to cool. Where does the > cold come from? The tank and air in the tank are 70 degrees, the air in the > room is 70 degrees. Where is the cold being stored? If cold is stored, why > can't you feel it? Let's search hot air to get cold facts. PV=nRT... ideally > > A filled scuba cylinder sits at room temperature, say 70 degrees. When you > open the valve air escapes and the cylinder begins to cool. Where does the > cold come from? The tank and air in the tank are 70 degrees, the air in the > room is 70 degrees. Where is the cold being stored? If cold is stored, why > can't you feel it? Let's search hot air to get cold facts. As you fill the tank, all those little bitty atoms of N and O increase in number and get forced closer together by the rising pressure, and increasingly bump into each other and the tank walls. That's heat. When it sits for a while, all those little bitty atoms of N and O calm down, the bumping and jostling is reduced to just what's caused by ambient. That's stasis. As you empty the tank, all those little bitty atoms of N and O decrease in number and get spread further apart as the pressure drops, and there's less and less of them to bump into each other and the tank walls. That's cold. Conversely, as ambient temperature increases from absolute zero, the same number of those little suckers get all stirred up and bump and jostle more. That's pressure. So, Pressure = Little Suckers X Temperature, or same thing, Temperature = Pressure / Little Suckers. This was discovered and proven by loading 50 divers and snorkelers on a Key Largo cattle boat. > As you fill the tank, all those little bitty atoms of N and O Of all the people here, I'd probably have figured you as the least likely one to refer to atoms of N and O. Is it just because you thought he needed a dumbed down version? SignatureSteve The above can be construed as personal opinion in the absence of a reasonable belief that it was intended as a statement of fact. If you want a reply to reach me, remove the SPAMTRAP from the address. >> As you fill the tank, all those little bitty atoms of N and O > > Of all the people here, I'd probably have figured you as the least likely > one to refer to atoms of N and O. Is it just because you thought he needed > a dumbed down version? Just because those atoms combine to form N2 and O2 molecules does not make his statement about those little N and O atoms incorrect. Oh, no !! They're gay and lesbian atoms chosing to pair up with others of their same kind. I've been breathing gay atoms all these years. Talk about oral sex. Lee "Lee Bell" <pleebell@bellsouth.net> wrote in message news:ixjtf.31996 > Oh, no !! They're gay and lesbian atoms chosing to pair up with others of > their same kind. > > I've been breathing gay atoms all these years. Talk about oral sex. Funny! Has the family values crowd heard of this? Maybe instead of bonding we should make a law that atoms can only have "unions" > Just because those atoms combine to form N2 and O2 molecules does not make > his statement about those little N and O atoms incorrect. Either way it was a good explanation that even Kenny may have understood. I just figured that Mike has a good understanding of the science, and I'd have expected him to say molecules instead of atoms. SignatureSteve The above can be construed as personal opinion in the absence of a reasonable belief that it was intended as a statement of fact. If you want a reply to reach me, remove the SPAMTRAP from the address. |
Reply to this Message |
 Sign In
 Join
 My Latest Posts My Monitored Threads My Blog My Photo Gallery My Profile My Homepage Start New Thread Enable EMail Alerts Rate this Thread
|
©2008 Advenet LLC Privacy Policy - Terms of Use
This website includes both content owned or controlled by Advenet as well as content owned or controlled by third parties.