Quote:
Originally Posted by david85
Thanks for posting the billboard by the way. I was trying to avoid throwing off the web page formatting since I knew it would turn out that big. 
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Sorry ... I didn't think of that before hand ... +1 David.
I'll re-sezie and repost shortly.
Quote:
Originally Posted by david85
....but aren't changes in temperature the driver of those things (evaporation, precipitation, pressure changes, wind, etc)?
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The fundamental flaw David is that this claim in question specifically excludes all of those things from having any influence ... the way it is written no evaporation is needed for bad weather ( just the mixing and changing of temperature ) , nor is pressure , wind, etc ... the exclusivity of the statement in question does not even allow for the existence of water to be needed for bad weather like rain ... somehow the temperature mix and change by itself is it ... this written exclusivity is factually incorrect ... despite Beemer's attempts at defense of it.
As for changes in temperature being
the driver ... I would say the correct wording would be
a driver... temperature changes are not the only factor ... for example you can't have evaporation of water where there is no water to evaporate ... water evaporates at different temperatures when the pressure is different ... water evaporates differently if there are other chemicals in it ... geographic features like mountains have an influence on what type of weather results ( on the up wind side and the down wind side ) ... etc.
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Quote:
Originally Posted by Beemer
Venus' temperature is high simply because the pressure is so high. The very same way air conditioning systems work!
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Incorrect.
- Pressure doesn't make the energy that is expressed in temperature.
- Venus radiates energy away constantly ... without energy input it will eventually cool down to near absolute zero.
- A given set mass of gas changes temperature ( like those seen in an air conditioning system ) because the force of pressure concentrates the existing energy content of that gas into a smaller space ... the pressure itself does not change the energy content ... it is not the pressure itself that causes the change in temperature ... the pressure is the precursor event to the actual cause of temperature increase , which is the concentration of energy content.
Quote:
Originally Posted by Beemer
Sunlight plays a very little effect. The temperatures are mostly down to pressure.
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Not only is the energy input from sunlight the main reason Venus's radiation emissions don't result in it cooling down to near absolute zero... so your trivializing it here is incorrect.
Your previous statement in question , the one I am disagreeing with , excludes ANY effect from sunlight ... your statement here disagrees with your previous statement ... if this now means you see the error of the exclusivity of your previous statement , great ... please post your corrected version of the previous statement bellow:
Quote:
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Originally Posted by Beemer
Venus' temperature on the ground is solely due to it's atmospheric pressure of 93 bar.
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