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View Poll Results: Do you think Global Warming is caused by Mankinds burning of fossil fuels?
Yes, it is caused by fossil fuels 184 32.45%
Not sure 72 12.70%
No it is not cause by fossil fuels 311 54.85%
Voters: 567. You may not vote on this poll

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Old Today, 11:45 AM
Figure Nine Champ
madsci_guy's Avatar
North Texas
Joined Nov 2002
1,270 Posts
Quote:
Originally Posted by Montag DP View Post
The confusion lies in what the precise definition of heat is.
Heat is defined as energy. Not all energy shows up as heat, but heat is energy, pure and simple.

Quote:
But either way, the point remains that the statement "only greenhouse gases absorb heat" is false.
Yup. any physical body will absorb heat. The whole "Greenhouse Effect" is due to the fact that the earth absorbs EM radiation from the sun, including the wavelengths identified as heat, and re-radiates it.
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Old Today, 12:09 PM
Drifting off the reservation..
JumpySticks's Avatar
USA, LA, Broussard
Joined Jan 2011
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Quote:
Originally Posted by Montag DP View Post
I think you may want to read it over again. The bolded is exactly what he was saying is false. Electromagnetic radiation is not heat, it is light. It is a vehicle of heat transfer, because it is emitted by molecules that have heat and is in turn absorbed by other molecules to heat them up. But it is only one form of heat transfer, and to say that only greenhouse gases absorb heat is patently false.
Space is loaded with EM, but it is not considered warm. It is near zero because there are few molecules to vibrate and collide. Only when radiation strikes an object is there heat generated. A spacewalking astronaut's suit experiences extreme heat on the sunny side and extreme cold on the shadow side. A network of liquid in tubes moderates and distributes heat evenly, and dissipates excess heat.

It's a real engineering problem with stresses generated by expansion on the sunny side and contraction on the shadow side. Where possible, the constant rotation of the object is the solution to dissipation of heat. A telescope pointed at a stellar object for a long time will essentially rotate once each orbit (90 minutes more or less depending upon altitude) but the temperature differential still must be dealt with using some radiation scheme.
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Old Today, 12:20 PM
Drifting off the reservation..
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USA, LA, Broussard
Joined Jan 2011
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Understanding heat and radiation is essential if one is to discuss global warming properly. Not many of the warmists (non-scientists) have a good grasp of the difference. Surely the scientists do but certain segments of medai seem to take advantage of the layman's ignorance when they propogate their hysteria.

The size of a planet and it's proximity to the emitter (sun) is a major factor in how much radiation will be absorbed. If the body is large enough to hold an atmosphere and to absorb enough radiation, an atmosphere will form where water is present.

It's interesting to imagine a solar system as a centrifuge, where denser rocky objects tend to accrete closer to the central star, and where gaseous objects tend to accrete further away. That is basically how our solar system came to be the way it is. Luckily, this rocky planet wound up with the proper velocity and mass to orbit at the right distance and of a size capable of absorbing enough radiation to keep the water in three states.

IMHO, when such conditions occur, life will emerge spontaneously and propogate over billions of years.
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Old Today, 01:13 PM
Ultra Violet
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Joined Feb 2013
2,012 Posts
Quote:
Originally Posted by Electromagnetic View Post
Did someone call me? Do you want me to propagate some Science, Logic and Reason?

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Originally Posted by madsci_guy View Post
If you would be so kind.

Please list all the different forms of energy that you know, and the SI units associated with them?
No problem, my favorite is Honey Crunch SI #7
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Old Today, 01:17 PM
Figure Nine Champ
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North Texas
Joined Nov 2002
1,270 Posts
Yes, I expected as much. Your post achieves the same low standard that we've come to expect. So much for "Science, reason, and logic"
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Old Today, 01:18 PM
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mikefast's Avatar
Houston Intercont, Texas, United States
Joined Jun 2001
122 Posts
Quote:
Originally Posted by Electromagnetic View Post
No problem, my favorite is Honey Crunch SI #7
Now this post I believe. This is the only energy you know. There is a whole lot more out there Pete.
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Old Today, 01:20 PM
Registered User
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Houston Intercont, Texas, United States
Joined Jun 2001
122 Posts
Quote:
Originally Posted by madsci_guy View Post
Yes, I expected as much. Your post achieves the same low standard that we've come to expect. So much for "Science, reason, and logic"
You have to admit that the question you asked wasn't going to give you more than that. You asked for all the different forms of energy he knew. So, he told you what he knew. I guess that is his idea of science logic and reason.
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Old Today, 04:42 PM
Registered User
Joined Jan 2008
1,153 Posts
http://www.sciencedaily.com/releases...0724141612.htm

Here is a report of a paleoclimate warming tipping point, when the Atlantic and Pacific oceans got cordinated. Whether global warming has reached a tipping point already, may do so, or not do so. in the future, etc. is a matter of lively discussion.
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Old Today, 05:52 PM
Drifting off the reservation..
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USA, LA, Broussard
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Quote:
Originally Posted by Jim Thomerson View Post
http://www.sciencedaily.com/releases...0724141612.htm

Here is a report of a paleoclimate warming tipping point, when the Atlantic and Pacific oceans got cordinated. Whether global warming has reached a tipping point already, may do so, or not do so. in the future, etc. is a matter of lively discussion.
Indeed!
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