CultureCitizen
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- Jun 1, 2013
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- #261
The burner : ok , the sun's surface has a temp of 5,000 K , so yes , the Earth can't get any hotter than that. Granted.Absolutely false. The burner on your stove can produce only so much heat. That is the theoretical maximum temperature attainable. However, you lose heat to the atmosphere, and you lose heat through convection of the pan, plus the water takes X amount of heat to warm up in the first place which invariably causes some to turn to water vapor thus carrying the heat away with it etc. You are simply wrong here. All the lid does is allow the water to come to a boil faster because you are removing the outside air which lowers the overall temperature. All a pressure cooker does is concentrate the heat that is presented and make food cook faster, but it does not add heat to the equation. That is a fundamental violation of physics.
"All the lid does is allow the water to come to a boil faster because you are removing the outside air which lowers the overall temperature"
No , that is incorrect : since there is a lid , the water vapour can't escape the pan heating even more . Water vapour in a cooking pot can reach more than 250 F. In an open pan you will never get temperatures higher than 100 C , the boiling point of water.
Pressure Cooker PSI FAQ: the stuff you didn’t think to ask about pressure | hip pressure cooking
it does not add heat to the equation.
Correct , it does not add heat to the equation, it simple stops the heat from leaving the system, similar to what co2 does.
Incorrect. Water vapor has no ability to heat anything. It RETAINS heat. It doesn't generate it. The effect you are noticing with the pressure cooker is, as I said previously,a artifice of the Ideal Gas Laws. You really should look them up. Most of what the warmist "scientists" are claiming is due to AGW is due to the Gas Laws and nothing more.
"Water vapor has no ability to heat anything."
1 ) I wrote "water vapour can't escape the pan heating even more" by which I meant the water got hoter as it absorved more heat from the heat source.
2) Any hot body can pass heat to another cooler body through contact.
1. The earth is not a closed system. Using the lid on a boiling pot is a straw man analogy and has no bearing on earths convection cycle..
2. There are five known routes for IR escape from the earth. CO2 has the ability to affect (retard) just one. The others compensate for the restriction. (complex reactive system).
Still waiting for someone to show me where the man made signal is in the empirical observed unaltered data.
The system depcted is not closed either : it receives heat from the stove and heat escapes from the pot by conduction ( rather slowly) , else the pot would remain hot forever. In reality it will cool of in a couple of hours once the heat is turned off.
Of course , in the Earth there are many more variables at play, but if you want to insist that CO2 is not an effective greenhouse gas, just take a look at Venus.