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Invisiblegiza
Male
Registered: 08/25/09
Posts: 2,089
Re: Some simple questions. [Re: ChuangTzu]
    #14915801 - 08/13/11 12:54 PM (12 years, 9 months ago)

If an object breaks down at 100 degrees, couldn't the object be thought of as -100 degrees?

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OfflineChuangTzu
starvingphysicist
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Re: Some simple questions. [Re: giza]
    #14917231 - 08/13/11 06:54 PM (12 years, 9 months ago)

Quote:

giza said:
If an object breaks down at 100 degrees, couldn't the object be thought of as -100 degrees?




What do you mean by "breaks down", and why do you think a temperature scale should be defined relative to this?

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Invisiblejohnm214
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Re: Some simple questions. [Re: giza]
    #14917316 - 08/13/11 07:16 PM (12 years, 9 months ago)

giza: your questions are often unclear and often are phrased such that they contain incorrect presuppositions preventing the question from being answered.

If your curious it would be better to read up on the basics of the field your interested in and then ask specific questions informed by that understanding you've gained.  This way you won't be asking impossible questions or reinforcing incorrect beliefs.

Your welcome to ask questions here, just try and clearly communicate what your asking and don't include premises that are incorrect (that you don't know to be correct).

as an example:  "
So denser materials can be thought of having a very low degree, or even negative?
"

A degree doesn't denote a particular unit and hence has no intrinsic meaning.  Asking about the degrees something has is like asking about the happy it has: no particular physical relevance.  Of those quantities described in degrees, I can not think of any appropriate to your question.

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Invisiblegiza
Male
Registered: 08/25/09
Posts: 2,089
Re: Some simple questions. [Re: ChuangTzu]
    #14917357 - 08/13/11 07:27 PM (12 years, 9 months ago)

Ah, sorry. I'll try and better my questions from now on.
The problem is I'm interested in all fields, hah, I was thinking that maybe we cannot find answers to things that have been questioned for a long time because the actual train of thought in the subject was off, or that possibly the outlook is off.
Also to explain why I'm so vague most of the time is because I believe that a lot of things can be figured out by pure observation from the things around us, so that's what I've been testing.
I believe that texts have already been well thought out, so I'm trying to take a different outlook on things to see if something is missing. Sorry if I wasted your time.

Edited by giza (08/13/11 07:40 PM)

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Invisiblekoraks
Registered: 06/02/03
Posts: 26,729
Re: Some simple questions. [Re: giza]
    #14925051 - 08/15/11 09:52 AM (12 years, 9 months ago)

Quote:

giza said:
The problem is I'm interested in all fields, hah, I was thinking that maybe we cannot find answers to things that have been questioned for a long time because the actual train of thought in the subject was off, or that possibly the outlook is off.



When traveling from Paris to Rome, it is conceivable that you'll find a quicker route by ignoring all the signs and existing roads, but the chances that you'll do much better by ignoring what millions of others have done before you are very, very slim.

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Invisiblegiza
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Registered: 08/25/09
Posts: 2,089
Re: Some simple questions. [Re: koraks]
    #14928639 - 08/15/11 09:23 PM (12 years, 9 months ago)

Could possibly all we need for a source of energy be in the clouds above us? If the gasoline is burnt and pushed out and turned into a gaseous state wouldn't we be able to extract it from the air around us?
Since nothing is ever destroyed, only seperated?

And wouldn't gravity keep anything of any mass from escaping?

Edited by giza (08/15/11 09:54 PM)

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InvisibleDiploidM
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Re: Some simple questions. [Re: ChuangTzu]
    #14938564 - 08/17/11 05:29 PM (12 years, 8 months ago)

Molten sodium salts are being used more and more to store thermal heat nowadays

This application is common in seagoing nuclear reactors. It can run hotter than pressurized water with reasonably-sized pipes so it's more thermodynamically efficient and there's no chance of a radioactive steam explosion.


--------------------
Republican Values:

1) You can't get married to your spouse who is the same sex as you.
2) You can't have an abortion no matter how much you don't want a child.
3) You can't have a certain plant in your possession or you'll get locked up with a rapist and a murderer.

4) We need a smaller, less-intrusive government.

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Invisiblegiza
Male
Registered: 08/25/09
Posts: 2,089
Re: Some simple questions. [Re: Diploid]
    #14961622 - 08/22/11 03:06 PM (12 years, 8 months ago)

Have they already tried to extract clouds with some type of larger scale vacuum?

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InvisibleDiploidM
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Re: Some simple questions. [Re: giza]
    #14962122 - 08/22/11 04:55 PM (12 years, 8 months ago)

I'm not sure what you mean by "extract clouds". But the waste products of a chemical burning are generally not themselves combustible.

Imagine burning a log of wood to get heat energy. When you're done, there's just ashes left. The wood is gone. You couldn't then burn the ashes to get more energy.

The reason the wood burns is because the molecules it's composed of can be thought of as a bunch of rubber balls (atoms) very tightly compressed together with rubber bands. Burning breaks the rubber bands so everything goes PING! and flies apart (or gets combined in other compounds that don't burn). That's the energy being released. Once that happens, there are no more molecules of wood left. They broke apart into pieces that themselves are not wood any more (and generally not combustible either). To put them back together into wood again would take at least a little more energy then was released by burning in the first place, so you lose energy overall if you try to reconstruct the wood. The reason trees can assemble wood molecules is because they use solar energy through photosynthesis in their leaves to stretch the rubber bands and assemble the molecules.

In other words, once the burning is done, all you have left is uncompressed (no energy) rubber balls. You can't make them fly any more by extracting the energy that used to compress them because, well, they're not compressed any more; the rubber bands were broken to release the energy.

In the case of actual burning molecules, the energy is stored largely in the electric and magnetic fields around each atom instead of rubber bands, but it's the same idea.

Does that answer your question?


--------------------
Republican Values:

1) You can't get married to your spouse who is the same sex as you.
2) You can't have an abortion no matter how much you don't want a child.
3) You can't have a certain plant in your possession or you'll get locked up with a rapist and a murderer.

4) We need a smaller, less-intrusive government.

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Invisiblegiza
Male
Registered: 08/25/09
Posts: 2,089
Re: Some simple questions. [Re: Diploid]
    #14962221 - 08/22/11 05:17 PM (12 years, 8 months ago)

Pretty much, thanks for your time.

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