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I just noticed this one. "The term "greenhouse effect" is used by analogy to greenhouses but is incorrect." I parse this to mean that the term "greenhouse effect" is incorrect. I think you mean the analogy is incorrect, no? ] (]) 02:33, 9 February 2010 (UTC) | I just noticed this one. "The term "greenhouse effect" is used by analogy to greenhouses but is incorrect." I parse this to mean that the term "greenhouse effect" is incorrect. I think you mean the analogy is incorrect, no? ] (]) 02:33, 9 February 2010 (UTC) | ||
== FYI == | |||
You had already responded. ] (]) 18:59, 10 February 2010 (UTC) |
Revision as of 18:59, 10 February 2010
To speak to another with consideration, to appear before him with decency and humility, is to honour him; as signs of fear to offend. To speak to him rashly, to do anything before him obscenely, slovenly, impudently is to dishonour. Leviathan, X. User:William M. Connolley/For me/The naming of cats Googlebombing: Coton school UK
You are welcome to leave messages here. I will reply here (rather than on, say, your user page). Conversely, if I've left a message on your talk page, I'm watching it, so please reply there. In general, I prefer to conduct my discussions in public. If you have a question for me, put it here (or on the article talk, or...) rather than via email. I "archive" (i.e. delete old stuff) quite aggressively (it makes up for my untidiness in real life). If you need to pull something back from the history, please do. Once. Please leave messages about issues I'm already involved in on the talk page of the article or project page in question. My Contribs • Blocks • Protects • Deletions • Block log • Count watchers • Edit count • WikiBlame |
The Holding Pen
Ocean acidification
A reader writes:
- "Leaving aside direct biological effects, it is expected that ocean acidification in the future will lead to a significant decrease in the burial of carbonate sediments for several centuries, and even the dissolution of existing carbonate sediments. This will cause an elevation of ocean alkalinity, leading to the enhancement of the ocean as a reservoir for CO2 with moderate (and potentially beneficial) implications for climate change as more CO2 leaves the atmosphere for the ocean."
I'm not sure, but it sounds odd. You can beat me to it if you like William M. Connolley (talk) 18:09, 3 May 2009 (UTC)
- Hmm, looks like it was User:Plumbago William M. Connolley (talk) 18:27, 3 May 2009 (UTC)
- Correctly deduced. It was me. It may not be worded well, but I think that it's factually correct. Basically, as well as its other effects on living organisms in the ocean, acidification is also expected (see the references) to dissolve existing carbonate sediments in the oceans. This will increase the ocean's alkalinity inventory, which in turn increases its buffering capacity for CO2 - that is, the ocean can then store more CO2 at equilibrium than before (i.e. the "implications for climate change" alluded to). As a sidenote, it also means that palaeo scientists interested in inferring the past from carbonate sediment records will have to work fast (well, centuries) before their subject matter dissolves away! Hope this helps. --PLUMBAGO 06:08, 4 May 2009 (UTC)
Double diffusive convection
Bit surprised there is no article on DDC? Has the term gone out of fashion? It was half the course in "Buoyancy in Fluid Dynamics" when I did Part III 23 years ago. --BozMo talk 13:13, 12 May 2009 (UTC)
- I remember is was a nice demo on the fluid dynamics summer school DAMPT ran. Not sure I would still be confident of writing it up 10:05, 13 May 2009 (UTC)
- I might have to suggest it to Huppert or someone. --BozMo talk 10:23, 13 May 2009 (UTC)
- If one of you two makes a stub, I'd be willing to read up on it and make it a longer stub. Awickert (talk) 10:28, 13 May 2009 (UTC)
- What a kind offer. I have started here: Double diffusive convection--BozMo talk 10:55, 13 May 2009 (UTC)
- All right - I'll get to it (eventually). It's on my to-do list. Awickert (talk) 16:42, 13 May 2009 (UTC)
CSS site
Forgive the quick note, but I happened to notice the comments at the top about CSS, and some places to learn about it. I second the site mentioned, but also take a look at the CSS Zen Garden at ] - it's a great place to quickly see what CSS is capable of doing. Basically, it's a site where people take the exact same HMTL page, but use a different .css file, and completely change how the page looks. Ravensfire2002 (talk) 14:48, 1 July 2009 (UTC)
Current
Your ArbCom userpage comment
Need to finish this off |
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The following discussion has been closed. Please do not modify it. |
I haven't looked to see which arb was accused of being a "fool," but am curious how would "Stephen Bain should not be entrusted with anything more valuable than a ball of string" would be received. I'd like to know before I say that. Short Brigade Harvester Boris (talk) 14:34, 12 September 2009 (UTC) |
Misplaced Pages:Arbitration/Requests/Case/Abd-William M. Connolley
Ditto |
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The following discussion has been closed. Please do not modify it. |
This arbitration case has been closed, and the final decision is available in full at the link above. As a result of this case:
On behalf of the Arbitration Committee, Hersfold 22:58, 13 September 2009 (UTC) I'm am sorry to see that your adminship has been revoked. I believe that our circumstances are similar in a way. I too was once an admin and lost my tools mainly due to conflicts on articles related to the events surrounding the 9/11 attacks. I know that the vast majority of my content creation and all my FA's were done after I was desysopped...with that said I am hoping that we can still look forward to your wisdom and guidance in those areas you have so instrumental in and that you will continue to help us build as reliable a reference base as we can achieve. Best wishes to you!--MONGO 03:24, 14 September 2009 (UTC)
I ask that you please accept my nomination to regain your administrative rights at RFA. 99.191.73.2 (talk) 13:23, 14 September 2009 (UTC)
InterestingHardly surprising that arbcom wants to keep their mess as far from view as possible. Short Brigade Harvester Boris (talk)
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Fools and their foolishness
Yes, it needs finishing |
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The following discussion has been closed. Please do not modify it. |
Regarding , you are quite welcome to raise any of your concerns or points on my talk page. I'm quite open to constructive feedback, even if it's harsh or drastically opposed to my views or actions. I even promise not to seek a block if you call me a fool. However, if you call me Mungojerrie or make me listen to "Memory", it's war! :-) (If you prefer to keep everything together, we could easily have the same discussion at User talk:William M. Connolley/For me/Misc arbcomm-y stuff.) Vassyana (talk) 14:42, 24 September 2009 (UTC)
Thanks Bozmo. I've cut my hair recently so we may not be too far opposed on that aspect (unless you now have long hair). As to expanding the page - that will come in time. I'm glad you (V) are watching but I'm afraid I've grown rather discouraged by arbcomms ability to learn, so I won't be in a hurry. That page is mostly for me, though you are free to ask questions there if you like and I'll probbaly answer. In the meantime, on the "fools" issue, User:William_M._Connolley/For_me/On_civility#Misc_arbcomm-y_stuff refers William M. Connolley (talk) 20:11, 24 September 2009 (UTC)
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I just found this
Oh look: http://ourchangingclimate.wordpress.com/2009/10/15/web-iquette-for-climate-discussions/ Isn't that good? William M. Connolley (talk) 22:31, 15 October 2009 (UTC)
- He used web-iquette for medical discussions as a guide. That reminds me of How Doctors Think which is a great work on how brilliant, well trained, experienced people can get things wrong every day. I wonder if there is a way to do the same thing. Ignignot (talk) 13:17, 16 October 2009 (UTC)
Wondring aloud
I have to wonder if there isn't some deliberate foot dragging, given sentiments previously expressed by Arbcom and other insiders. Lt. Gen. Pedro Subramanian (talk) 22:59, 29 November 2009 (UTC)
- Um. I missed the Raul stuff in August and now feel guilty about not expressing my sympathy (literally in this case :-(). Old score settling I suspect William M. Connolley (talk) 23:05, 29 November 2009 (UTC)
- What Raul stuff in Aug? Email if you prefer. --BozMo talk 07:03, 30 November 2009 (UTC)
- Nothing secret, just not common knowledge. It is off on some arbcomm-y type page; Raul dropping CU tools; I'd find the link except someone watching can probably find it quicker William M. Connolley (talk) 09:39, 30 November 2009 (UTC)
Thermal underwear
Idealized greenhouse model, or the section below |
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May I ask a question? I stress that I am not trying to do any original research, but only want to improve the GW article by explaining what is fundamental to the AGW hypothesis. I don't think the current article really explains it very well. My question: I did some Googling and the Stefan-Boltzmann equation (or rather a derivative of it) seems to be fundamental. But there are two versions of it, as follows:
where alpha is albedo, S0 is a constant solar radiative flux (units W/m^2), T is temp in K, and sigma is a constant. The two sides of the equation both have units W/m^2. In the first equation e is 'emissivity' which is unitless and is the ratio of energy radiated by a particular material to energy radiated by a black body at the same temperature. I think of it as an 'underpants factor'. You have a black body throbbing with radiation, which will cool unless you keep it warm. So you put some underpants on it, to keep the cold out, i.e. stop it radiating so much. Hence CO2 and water vapour are like thermal underwear to keep the earth warm (if e is 100%, the temperature is about -18 deg C, for if you solve for e with current temperature, assume 15 deg C, you find e is about 60%). I am assuming e is constant whatever the temperature for exactly the same material, is that correct? In reality e will change as the material of the atmosphere changes (more CO2, or more vapour). In the second equation G is a number, units also W/m^2, which is a measure of the influence a factor has in altering the balance of incoming and outgoing energy in the Earth-atmosphere system. If you solve for G for 15 deg C, you get about 150 W/m^2. My puzzle is whether G is also constant, if for other reasons (e.g. change in solar radiation, change in albedo) the temperature changes. Intuitively it won't be constant. Why represent it this way? Apologise if I have misunderstood, and please correct any mistakes (I am quite new to this, but it is interesting). Again, I am not trying to do any research, just finding out some facts that could be put into layman's language and hopefully into the article. I think thermal underwear is a better analogy than greenhouses, e.g. HistorianofScience (talk) 11:52, 10 January 2010 (UTC)
Fine. Writing it all out is quicker than finding it, so... simplifying, the sun shines 4S units on the uniform earth (and since the area of a circle is 1/4 the area of a corresponding sphere the 4 drops out), which is a black body (forget albedo for the moment, it makes no real difference). The atmosphere is transparent to SW, and can be considered as a single layer not in conductive contact with the surface. There is no diurnal cycle, all is averaged out, all is in equilibrium. So at the sfc (with atmosphere) we have the following equation:
(the surface is black, captures all solar SW and transforms it into LW which it re-radiates) and G is the radiation from the atmosphere. Meanwhile, in the atmosphere,
(the atmospheric layer is totally opaque to the surface LW, is itself isothermal, and being a layer radiates both up and downwards). As it happens G = r(T_a)^4 but we don't care about that for tihs analysis. Hence, S + G = 2G, hence S = G, hence T_1 = (2S/r)^0.25. Meanwhile, in the absence of the atmosphere, we clearly would have T_2 = (S/r)^0.25. T_1 > T_2 (by a factor of 2^0.25) and (T_1 - T_2) is the greenhouse effect. William M. Connolley (talk) 21:02, 10 January 2010 (UTC) Also, this and the linked also refers, but is harder William M. Connolley (talk) 21:12, 10 January 2010 (UTC)
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Blast from the past
Not to creep you out, but I was looking through old RfAs and I found this, from your second, and succesful, RfA. To the question of: How do you see Misplaced Pages in 2010 ?
OK, for what its worth, here is the rest: I see wikipedia continuing its growth and influence. The problems of scaling will continue: how to smoothly adapt current practices to a larger community. At the moment this appears to be working mostly OK. Problems exist with the gap between arbcomm level and admin level: I expect this to have to be bridged/changed someway well before 2010. I very much hope more experts - from my area of interests, particularly scientists - will contribute: at the moment all too few do. To make this work, we will have to find some way to welcome and encourage them and their contributions without damaging the wiki ethos. This isn't working terribly well at the moment. I predict that wiki will still be a benevolent dictatorship in 2010 - the problems of transition to full user sovereignty are not worth solving at this stage. William M. Connolley 20:36, 8 January 2006 (UTC).
Thought you'd be amused. Shadowjams (talk) 07:02, 12 January 2010 (UTC)
- Hmm yes. "Prediction is hard, especially of the future" as they say William M. Connolley (talk) 08:25, 12 January 2010 (UTC)
- Ha. So they say. I'm really good at the past prediction part though. Shadowjams (talk) 08:49, 12 January 2010 (UTC)
More thermals
All at Idealized greenhouse model it seems |
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Thanks for your explanation which I am afraid I still don't really follow. I don't see how 'the earth heats the atmosphere' and 'the atmosphere heats the earth' can both be true.
| G ^ V Solar input. (4S ->) S | ---------------------------- Atmosphere. Emits G, up and down, thermal radiation. Absorbs S+G. ---------------------------- | | | V Solar straight through - atmos transparent, still S G V ^ S+G | ----------------------------- Sfc. Abs S(SW)+G(LW). Thus emits (S+G)(LW). Thus S+G = rT^4 Clear now? William M. Connolley (talk) 20:13, 12 January 2010 (UTC) Sorry, apart from the bit about not reflecting LW (that seemed picky, unless I misunderstood it), which of my claims was wrong? I said that the net outflow from earth to atmosphere has to be upwards. And that this outflow has to be exactly equal to the outflow from the atmosphere into space. Your diagram is incomprehensible. And what about Greenhouse effect where it says "Radiation is emitted both upward, with part escaping to space, and downward toward Earth's surface, making our life on earth possible." This is entirely wrong isn't it? It gives the impression that we are safe because only part of the radiation escapes to space, but the rest is trapped behind & keeps us snug and warm. The reality is that the net outflow from the earth has to be exactly balanced by the outflow at the edge of the atmosphere into space. Otherwise the atmosphere would keep on heating up until equilibrium was restored. HistorianofScience (talk) 20:31, 12 January 2010 (UTC) The unclearness of the diagram is the omission of the causality. You have the atmosphere radiating G downwards, e.g. Yes but where does the G come from? If we were to start with turning on the sun like a switch, at that instant there would be no G from the atmosphere. In which case the first thing to hit the earth would be S. Then earth would emit (not reflect) S. With no G. HistorianofScience (talk) 20:43, 12 January 2010 (UTC)
| 0 ^ V Solar input. (4S ->) S | ---------------------------- Atmosphere. At 0K. Doesn't radiate. ---------------------------- | | | V Solar straight through - atmos transparent, still S 0 V ^ 0 | ----------------------------- Sfc. Abs S(SW)+0(LW). At 0K. Doesn't radiate.
| 0 ^ V Solar input. (4S ->) S | ---------------------------- Atmosphere. At 0K. Doesn't radiate. ---------------------------- | | | V Solar straight through - atmos transparent, still S 0 V ^ G_T | ----------------------------- Sfc. Abs S(SW)+0(LW). Has warmed up somewhat, to T. Emits rT^4, call this G_T. So now the sfc has warmed up somewhat, so it is emitting G_T in the LW. Now the atmosphere isn't in balance: it is absorbing G_T but emitting nothing, since it is at 0K. So it will warm up. So it will start emitting downwards an warm further. And eventually we end up with the equilibrium solution William M. Connolley (talk) 21:47, 12 January 2010 (UTC) |
Service award update
Hello, William M. Connolley! The requirements for the service awards have been updated, and you may no longer be eligible for the award you currently display. Don't worry! Since you have already earned your award, you are free to keep displaying it. However, you may also wish to update to the current system.
Sorry for any inconvenience. — the Man in Question (in question) 10:21, 14 January 2010 (UTC) |
Argh, I hate it when these things change :-( Oh well, I'll see if the new one looks any prettier than the old :-) William M. Connolley (talk) 12:59, 14 January 2010 (UTC)
Some help with links would be appreciated
I see that you're (still) neck deep in "The Dramaz!", but when you get a chance I'd appreciate it if yourself or someone you know could take a look at Eric Rignot and try to straighten out the climatology related redlinks there. Don't worry about the link to Lew Allen Director's Award, I'll take care of that myself eventually (unless someone else wants to write a little article about the award. Don't let me stop you!). Thanks!
— V = I * R (talk to Ohms law) 15:25, 26 January 2010 (UTC)
- OK. By golly, but that is an awful photo! William M. Connolley (talk) 15:49, 26 January 2010 (UTC)
- Done a bit, others have too. You might want to pay attention to the regrettable possibility of it being a copyvio, mind William M. Connolley (talk) 19:57, 26 January 2010 (UTC)
- Thanks for the assist, I appreciate it.
— V = I * R (talk to Ohms law) 10:23, 27 January 2010 (UTC)
- Thanks for the assist, I appreciate it.
On refactoring and a higher standard of civility
- User:William M. Connolley is required to refrain until 2010-07-27 from editing others' talkpage posts in pages subject to this probation even in cases where the talk page guidelines would otherwise indicate that it could or should be done; he is further warned to refrain from using septic and similar derogatory terms, and to promptly refactor any unintentional typos.
The area of probation is to be interpreted to include anywhere that a topic related to or a dispute stemming from climate change is being discussed, including but not limited to articletalk, usertalk, and WP and WT namespaces. Editing others' posts explicitly includes adding {{cot}}, {{discussion top}}, and similar templates used to close discussions; an exception is made for archiving discussions which have received no posts for at least one week. Your right to point out cases where refactoring should occur is in no wise restricted. Please be careful when throwing around terms that might be interpreted to refer to your fellow volunteers - even if a subtle dig falls within the letter of WP:Civility, it can still sting and contribute to the level of dysfunction at those pages. - 2/0 (cont.) 21:33, 27 January 2010 (UTC)
- This is silly and a victory for the yahoo
's; unfortunately you've succumbed to the mob. Ah well William M. Connolley (talk) 21:48, 27 January 2010 (UTC)
- Following discussion with the other admins who commented on the original discussion, the above restriction has been clarified: removing whole comments from this page is fine. - 2/0 (cont.) 14:24, 2 February 2010 (UTC)
Code fragments found
Just thouht you might be interested in this news item about code fragments being found. It came to my attention as it was next to this story which has a pretty decent subheading. I don't have access to more than the abstract, doubtless this will lead to interesting discussions. Perhaps a bit offtopic at the moment, but something to look forward to. . . dave souza, talk 17:59, 29 January 2010 (UTC)
- Re: the water vapor, email me and you will get a PDF. (Re: Roman law - very cool.) Awickert (talk) 18:06, 29 January 2010 (UTC)
- was due to an increase in water vapour in the high atmosphere - odd, the version I heard was stratospheric *drying*. Yes, pdf please William M. Connolley (talk) 18:09, 29 January 2010 (UTC)
- From my limited understanding, the point is increase = warmer climate, subsequent drying = recent lack of warming predicted by some models, outcome possible solution to puzzle and improved modelling. All very interesting. . . dave souza, talk 19:18, 29 January 2010 (UTC)
- Apologies to all: my subscription doesn't work until it appears in print (e.g., until it stops being a "Science Express" article). Shoot. Sorry. You'll all get it once I can access it. I will send emails to friends at other institutions and see if they can get it though. Awickert (talk) 19:47, 29 January 2010 (UTC)
- I don't have this page watchlisted anymore. I am willing to provide copies for papers behind paywalls within reason. -Atmoz (talk) 17:35, 3 February 2010 (UTC)
- Apologies to all: my subscription doesn't work until it appears in print (e.g., until it stops being a "Science Express" article). Shoot. Sorry. You'll all get it once I can access it. I will send emails to friends at other institutions and see if they can get it though. Awickert (talk) 19:47, 29 January 2010 (UTC)
- From my limited understanding, the point is increase = warmer climate, subsequent drying = recent lack of warming predicted by some models, outcome possible solution to puzzle and improved modelling. All very interesting. . . dave souza, talk 19:18, 29 January 2010 (UTC)
- was due to an increase in water vapour in the high atmosphere - odd, the version I heard was stratospheric *drying*. Yes, pdf please William M. Connolley (talk) 18:09, 29 January 2010 (UTC)
British Antarctic Territory
William, I have a few simple questions for you. I see that you once worked at a British base in the Antarctic. I have been slowly engaging in a project on both monetary unions and the history of currency in the British Empire. I have been concentrating on one region at a time, and eventually I will create a summary article for the whole Empire.
I will now imminently be dealing with the remote region in the South Atlantic that covers, the Falklands, South Georgia, St. Helena, Ascension Island, and British Antarctic Territory. In some respects, this region is very straight forward in comparison to say British India or the British West Indies. But there are nevertheless complications due to its very remoteness. I do already hold alot of information on this subject, including a letter from Sir Rex Hunt, but there is nothing like hearing it directly from somebody who has been there.
Basically, I know that sterling is the official currency of British Antarctic Territory, but that the law and practice are not necessarily the same thing. I doubt if the workers on the bases of the other countries actually use sterling.
Anyway, would the sterling coins and notes in use on the British bases have been all of the UK variety, or would it have been intermixed with the Falkland and St. Helena varieties?
And how did banking work there during the six winter months? Were there ATM's there, and if so, which banks operated them? David Tombe (talk) 02:47, 1 February 2010 (UTC)
- I used to work at BAS, but I've never been to the BAT. I think people tended to run up bar tabs - there isn't really a lot else to spend money on. There are occaisional tourist ships (on the Peninsula) that spend money - but in what currency, I don't know. Sterling most likely. Mail me, and I'll find you someone still at BAS to email William M. Connolley (talk) 08:19, 1 February 2010 (UTC)
William, Thanks for that information. As requested, I have e-mailed you. Let me know if you don't receive it. David Tombe (talk) 14:40, 1 February 2010 (UTC)
- William, I would strongly guess that the retail outlets that deal with the tourist ships would be trading in a broad base of major hard currencies and that there would be a list of exchange rates on the wall behind the counter. And that would be irrespective of the fact that sterling is the official currency in the territory. David Tombe (talk) 07:14, 2 February 2010 (UTC)
- "retail outlets" is a rather grand term; it is more like craft work from over winter, if I recall the tales correctly William M. Connolley (talk) 08:48, 2 February 2010 (UTC)
OK Thanks. Did you get the e-mail that I sent? Hopefully your contact down there will be able to supply all the accurate details. David Tombe (talk) 11:21, 2 February 2010 (UTC)
- Yes, received and passed on. I'll let you know William M. Connolley (talk) 11:35, 2 February 2010 (UTC)
OK. Thanks alot. David Tombe (talk) 12:40, 2 February 2010 (UTC)
Notification
--BozMo talk 15:37, 2 February 2010 (UTC)
- You appear to have fallen victim to the false balance meme William M. Connolley (talk) 19:41, 2 February 2010 (UTC)
- Er, in this case I have also. The edit warring was unfortunate, and you know that you have to suffer fools gladly here. Hipocrite (talk) 19:43, 2 February 2010 (UTC)
- See t:GW please William M. Connolley (talk) 20:08, 2 February 2010 (UTC)
Barbecue lid, not underwear
HI again. I looked at Idealized greenhouse model which gives a more detailed explanation of how it works. I also checked out this on which it seems to be based. It's a shame no one has linked to that article because it explains it better than anything else on the net.
- Their fig 2.7 is my picture above William M. Connolley (talk) 19:47, 2 February 2010 (UTC)
But I return to the question of how to explain this in words - I know you like maths and pictures but at the end of the day this is an encyclopedia for people who probably understand words better. So is a barbecue a better analogy than thermal underwear? We can ignore the SW stuff and pretend each square metre of the earth has a barbecue with glowing coals on it. Then we put the lid on and (if it's like my barbecue) the lid gradually gets very hot and inside it's even hotter. The atmosphere is like the barbecue lid. Is that right? HistorianofScience (talk) 18:57, 2 February 2010 (UTC)
- No, because this is the same problem as the greenhouse analogy (as youre pdf notes): the barbeque warms because of the trapping of heat that would otherwise convect away; the radiative aspect is likely minor, though I'm only guessing. The simple one-sentence explanation for the GHE is "the earth is warmer with an atmosphere because it is heated by radiation from both the sun and the atmosphere". These are simple words and they should be easy to understand; for some reason many people's brains are resistant to hearing these words William M. Connolley (talk) 19:47, 2 February 2010 (UTC)
- Also, please be careful what you edit on top of on the GW page; it suffers frequent vandalism and POV pushing, e.g. . There is a danger that such POV pushing will be missed if respected editors edit on top William M. Connolley (talk) 20:01, 2 February 2010 (UTC)
- No to you:o) The explanation you give is simple I agree but it does not distinguish two cases (1) a vast electric blanket encircling the earth which has its own source of power and 'heats the earth' (2) a wrapping round the earth which is not self-powered but which uses the derivative heat from the earth which warms it up and then causes it to emit heat back to the earth. The first sense of 'heating the earth' is a true one, for it is per se. The second is merely a derivative one. And I really don't understand why the barbecue analogy (or the greenhouse one) is not good. Let's conduct another thought experiment. Suppose we are one the surface of the moon with no air. I put some heat source inside the barbecue. Then I put it to you that the surface of the heat source is hotter with the lid on, than with the lid off, even without the complication of the air. In fact I don't see why the analogy of barbecue-on-moon differs from the simple idealized model. HistorianofScience (talk) 20:03, 2 February 2010 (UTC)
- If you don't know why the GH analogy isn't a good one, then you need to read the page. It is all there, or on GHE, I forget. Your barbeque-on-moon analogy is tolerable, on first inspection; it is essentially a realisation of my model. So you could use that, perhaps. But not the one on earth William M. Connolley (talk) 20:08, 2 February 2010 (UTC)
- And on the radiative aspect of the barbecue being minor. Anyone familiar with barbecues knows that the 'oven' effect only starts to work when the lid gets hot - so hot you can't put your hand on it without serious pain. That heat must be going back somehow. Also, why shouldn't the mathematical models that explain the idealised greenhouse be true of the barbecue plus lid? HistorianofScience (talk) 20:09, 2 February 2010 (UTC)
<----- I read again the explanation in the greenhouse article and it is completely impenetrable. E.g. "It has also been demonstrated experimentally (R. W. Wood, 1909) that a "greenhouse" with a cover of rock salt heats up an enclosure similarly to one with a glass cover." How is that an explanation? Presumably the fact it is rock salt is somehow important, but this is not explained. The rock salt is mentioned again lower down - perhaps the paragraphs got mixed up, this being Misplaced Pages. That section could do with a lot of work. HistorianofScience (talk) 20:19, 2 February 2010 (UTC)
PS I see that the sentence containing the key to the mystery 'When a rock salt window which transmits infrared...' got detached from the sentence about Wood. It would be clear if read in that order. HistorianofScience (talk) 20:22, 2 February 2010 (UTC)
- I've fixed that up William M. Connolley (talk) 21:29, 2 February 2010 (UTC)
- It seems to me that both analogies have the same defect, namely the heat source for the climatic system is external where in the analogies it is internal (coals, body's caloric engine). Isn't the key idea that the earth's radiant heat, due to solar heating of the surface, occurs at a different frequency (wavelength) than the impinging solar energy and that the atmosphere, while transparent to solar wavelengths are opaque to the earth's radiant energy? I agree an analogy would be helpful in this article but it seems to me neither thermal underwear nor bbq's captures this essential idea. JPatterson (talk) 17:54, 3 February 2010 (UTC)
- The heat source indeed looks external, but in the idealised model it is effectively internal, because the only role solar plays is to be absorbed at the sfc - so it cannot be distinguished from sfc heating. This only works because the atmos is transparent at SW but effectively opaque in the LW. Since the BBQ analogy disguises that, it might just confuse people William M. Connolley (talk) 18:23, 3 February 2010 (UTC)
- I see. It might make the article more accessible to the layperson if that point was made explicit. Just a thought. JPatterson (talk) 19:21, 3 February 2010 (UTC)
- I think the maths/picture is the clearest way to understand this, so am probably not the best person to try to add any clarification. However if anyone else cares to have a go I'll review it William M. Connolley (talk) 19:23, 3 February 2010 (UTC)
- Just for fun, I took at it. Short and sweet. Please let me know what you think. JPatterson (talk) 21:11, 3 February 2010 (UTC)
- I decided to be bold and the section in the article. I'll revert if I you disagree. JPatterson (talk) 19:54, 4 February 2010 (UTC)
- I rather doubt that hacking quite that much out is a good idea William M. Connolley (talk) 20:01, 4 February 2010 (UTC)
- I decided to be bold and the section in the article. I'll revert if I you disagree. JPatterson (talk) 19:54, 4 February 2010 (UTC)
- Just for fun, I took at it. Short and sweet. Please let me know what you think. JPatterson (talk) 21:11, 3 February 2010 (UTC)
? I've added back in the technical discussion of radiative balance. I don't get what the whole rock salt discussions adds. It certainly is distracting to the central point of the section. Seems to me we shouldn't have to provide proof of the principles on which a greenhouse operates but rather stick to making the distinctions necessary to explain why "greenhouse effect" is a bit of a misnomer. JPatterson (talk) 20:31, 4 February 2010 (UTC)
- OK, I didn't like it. Sorry. I've just done a major hack of several bits of that article, much of which is now simpler and more accurate. I'll add a section to the talk page; this isn't just a personal discussion and people may not know to come here William M. Connolley (talk) 21:43, 4 February 2010 (UTC)
Outcome of Misplaced Pages:General sanctions/Climate change probation/Requests for enforcement#TheGoodLocust, MarkNutley, WMC
- William M. Connolley is restricted until 2010-05-03 from making more than one revert to any article in the probation area in any 24 hour period.
- William M. Connolley is required until 2010-08-03 to initiate or participate in discussion at the relevant talkpage any time he makes a revert to any article in the probation area, excepting to revert blatant, obvious vandalism.
- 2/0 (cont.) 04:01, 4 February 2010 (UTC)
Sensible heat
Your edit summary was absolutely right - I had never heard the term, and I actually work with thermally driven phase transitions. It is a big world, out there. - 2/0 (cont.) 02:43, 5 February 2010 (UTC)
- Nice job. Its been more years than I care to recall since my undergrad thermo class but I was pretty sure I remembered sensible heat to simply mean detectable (with a thermometer) thermal energy. After reading the original definition, I was momentarily aghast at the thought that I had somehow managed to survive all these years with such a misshapen notion rattling around in my noggin :>)JPatterson (talk) 02:56, 5 February 2010 (UTC)
Correction of "Greenhouse effect"
I reestablished the old version of "Greenhouse effect": the heating of earth's surface is part natural and part human, and maybe the increase of Greenhouse effect is not natural,... but the greenhouse effect is only natural. —Preceding unsigned comment added by Chicco3 (talk • contribs) 18:39, 8 February 2010 (UTC)
- You're wrong. And I'm not sure why you think you're right William M. Connolley (talk) 22:00, 8 February 2010 (UTC)
I just noticed this one. "The term "greenhouse effect" is used by analogy to greenhouses but is incorrect." I parse this to mean that the term "greenhouse effect" is incorrect. I think you mean the analogy is incorrect, no? JPatterson (talk) 02:33, 9 February 2010 (UTC)
FYI
I decided there was no point. You had already responded. ATren (talk) 18:59, 10 February 2010 (UTC)