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Post by hankslincoln on Feb 19, 2013 21:01:15 GMT
The sad part I think is that he (Hansen) does have a PhD or whatever in astronomy. He was like so many others, "trained" to be a scientist. With that in mind I challenge anyone to read Richard Feynman's essay "Cargo Cult Science" with out becoming really depressed about the current state of science in this country.
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Post by sigurdur on Feb 19, 2013 21:22:06 GMT
A PhD doesn't mean much anymore. You write a thesis that conforms to the popular belief of the day...and you get a PhD.
Used to be that you had to write one challenging the consensus. Now you have to write one confirming the consensus.
At least as it applies to climate science.
We are loosing valuable time as the potential knowledge increase is out there.
Disappointing to say the least.
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Post by sigurdur on Feb 19, 2013 21:30:58 GMT
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Post by nautonnier on Feb 20, 2013 0:10:29 GMT
They are riding the tiger and cannot dismount - can you imagine what would happen if the IPCC or any of its associated Nobel wannabes were to say: "We have checked our models against the measurements of the actual atmosphere, and we have realized we got it wrong. There may be a 1C rise over the next century but we don't expect anything catastrophic indeed the warmth and extra CO2 may increase crop production" It would be a close run thing who would tear them limb from limb first: the scamming politicians trying for world governance; the 'green industries' making a fortune out of subsidies for inefficient 'green energy'; the thousands of people in energy povery; the people who have been thrown out of jobs and seen them exported; or, the many that have seen people die due to energy poverty and the use of food for 'biofuel'. They would have so many enemies that it would be impossible for them to be too paranoid. These people now are ONLY able to forecast catastrophe, anything less and as a minimum they face world-wide opprobrium at worst they end up like Mussolini. Think about it from their point of view - they must be terrified.
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Post by sigurdur on Feb 20, 2013 1:41:30 GMT
Nautonnier:
You do have a point. Never thought of it that way. I am much more interested in the science than I am in the politics.
I most certainly can see now tho.......offfffta. No wonder the fall is so slow. If the hoard changed direction all at once.......offffffffffffffffftaaaaaaaaaaaaaaaaaa.
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Post by sigurdur on Mar 7, 2013 20:11:16 GMT
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Post by karlox on Mar 18, 2013 18:12:43 GMT
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Post by mkelter on Mar 18, 2013 18:49:23 GMT
karlox: I'm not certain that it sounds good to me or not. There isn't a lot of specifics.
I think that they are not really depending on the silicon for power, there are magnets and coils in the skirt and they say they are producing A/C power not DC. I suspect it is a solar powered generator.
Whether they can actually get a 1000 watts out of an area of 1 sq meter is another question entirely. They are magnifying the sun with lenses, at least that portion of the panel actually facing the sun at the time. They mitigate the heat generated by rotating away , and the bearing is apparently mag lev, especially to get any efficiency in rotating something as heavy as a silicone PV panel.
As far as being cheaper than conventional coal is concerned, that is easy these days with EPA regulations skewing the market cost of coal electric.
On all forms of generation, operation and maintenance costs (to include repair and replacement) is a key variable. My city buys nuke for about 5 cents a kilowatt because the plant has been paid for and the equipment is durable. There are few moving parts per kilowatt produced, and the nuke produces electricity 24/7 so there is little turn-on and shut-down waste.
Regardless of the rotation, in the V3 system half the PVs are shaded, and the hours of operation is still dependent on daylight hours. Unless the V3 system is huge, there would be a lot of moving parts per kilowatt produced, similar to the problem with wind generation. This tends to run up the O&M costs, which are often neglected by salesmen when discussing levelized costs of producing energy.
I need more information to evaluate the system.
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Post by karlox on Mar 21, 2013 20:49:08 GMT
karlox: I'm not certain that it sounds good to me or not. There isn't a lot of specifics. I think that they are not really depending on the silicon for power, there are magnets and coils in the skirt and they say they are producing A/C power not DC. I suspect it is a solar powered generator. Whether they can actually get a 1000 watts out of an area of 1 sq meter is another question entirely. They are magnifying the sun with lenses, at least that portion of the panel actually facing the sun at the time. They mitigate the heat generated by rotating away , and the bearing is apparently mag lev, especially to get any efficiency in rotating something as heavy as a silicone PV panel. As far as being cheaper than conventional coal is concerned, that is easy these days with EPA regulations skewing the market cost of coal electric. On all forms of generation, operation and maintenance costs (to include repair and replacement) is a key variable. My city buys nuke for about 5 cents a kilowatt because the plant has been paid for and the equipment is durable. There are few moving parts per kilowatt produced, and the nuke produces electricity 24/7 so there is little turn-on and shut-down waste. Regardless of the rotation, in the V3 system half the PVs are shaded, and the hours of operation is still dependent on daylight hours. Unless the V3 system is huge, there would be a lot of moving parts per kilowatt produced, similar to the problem with wind generation. This tends to run up the O&M costs, which are often neglected by salesmen when discussing levelized costs of producing energy. I need more information to evaluate the system. Thanks for your reply! That´s what we need here: people who really knows about what he is talking about, from whom to learn, and technical part is not within a layman like me, and very honest of you to say more information is needed as well Got a question, once provided Heat (for heating) is first direct energy transaction from sun to earth´s surface why aren´t more effiient or developped alike systems where Heat is mostly transferred to some liquid circuit? And using optical tech for this or whatever... And could that model be implemented on small scales? For I know there exist some large solar installations currently, but I don´t know about cost or future technology; I mean the kind of Power Solar Central concentrating round mirrors on a tower, neither know about possible side effects or impacts on fauna, flora etc... Thanks in advance! (sorry for my lack of wording on this subject)
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Post by karlox on Mar 21, 2013 20:51:38 GMT
So, I guess for the device depicted they should rather heat some liquid internal circuit and let it heat well high? Excuse my wanderins... :-;
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Post by hankslincoln on Mar 25, 2013 21:00:29 GMT
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Post by hankslincoln on Apr 2, 2013 0:06:16 GMT
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Post by sigurdur on Apr 2, 2013 3:45:43 GMT
The AGW folks know that the next few years is make or break time for them. Another couple years of no dty bulb temp warming and the whole thing totally falls apart.
Dr. Hansen has been granted enough money that he is now a 1,000,000 citizen. And who said working for the govt didn't pay well?
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Post by graywolf on Apr 2, 2013 5:47:17 GMT
I just don't know what changes your gonna require before you see them Siggy? It's a good job you have yer clothes on or we'd have a hell of a job persuadin' you that you hadn't (esp. with the number of folk here who would instantly confirm that you were dressed?)??
Arctic melt season has begun and I fully expect a continuation of the extreme record breaking behaviour of the recent N.Hemisphere summer 'weirdness'.
I'll wait for the first heat records to begin falling. in mid to late April. before I pop back in here to see how you's all doin'
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Post by sigurdur on Apr 2, 2013 7:44:05 GMT
Grey wolf. The weather as of late is not wild weather. Britain is having temps like the sixties. I think it was cutty that posted a link to a paper about sun and cold in Europe. You are having sixties temps, I am having fifties temps. Going to be a late spring here. Prob for you as well.
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