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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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On Sat, 18 Jun 2005 16:25:46 GMT, the opaque Gunner
spake: On Sat, 18 Jun 2005 14:38:48 GMT, "Poker Joker" wrote: "Gunner" wrote in message . .. Id much rather wrap a bicycle chain around your neck and pull till all the **** stops coming the stump terminating at your 3rd cervical vertebrea. How about doing your part in stopping the uncontrolled release of CO2? Gunner Is that a wimper I hear? I knew you were too immature to understand anything. Never been around wolves much, have you? It's much easier to plonk the trolls, Gunner. And for the Chicken Littles: http://www.washingtonpost.com/wp-dyn...2004Dec22.html (text follows) --snip-- Global Warming? Hot Air. By George F. Will Thursday, December 23, 2004; Page A23 In today's segmented America, Michael Crichton's new novel, "State of Fear," might seem to be reading just for red states. Granted, a character resembling Martin Sheen -- Crichton's character is a prototypical Hollywood liberal who plays the president in a television series -- meets an appropriately grisly fate. But blue states, too -- no, especially -- need Crichton's fable about the ecology of public opinion. "State of Fear," with a first printing of 1.5 million copies, resembles Ayn Rand's "Atlas Shrugged" -- about 6 million copies sold since 1957 -- as a political broadside woven into an entertaining story. But whereas Rand had only an idea -- a good one (capitalism is splendid), but only one -- Crichton has information. "State of Fear" is the world's first page turner that people will want to read in one gulp (a long gulp: 600 pages, counting appendices) even though it has lots of real scientific graphs, and footnotes citing journals such as Progress in Physical Geography and Transactions -- American Geophysical Union. Crichton's subject is today's fear that global warming will cause catastrophic climate change, a belief now so conventional that it seems to require no supporting data. Crichton's subject is also how conventional wisdom is manufactured in a credulous and media-drenched society. Various factions have interests -- monetary, political, even emotional -- in cultivating fears. The fears invariably seem to require more government subservience to environmentalists and more government supervision of our lives. Crichton's villains are environmental hysterics who are innocent of information but overflowing with certitudes and moral vanity. His heroes resemble Navy SEALs tenured at MIT, foiling the villains with guns and graphs. The villains are frustrated because the data do not prove that global warming is causing rising sea levels and other catastrophes. So they concoct high-tech schemes to manufacture catastrophes they can ascribe to global warming -- flash floods in the American West, the calving of an Antarctic iceberg 100 miles across, and a tsunami that would roar at 500 mph across the Pacific and smash California's coast on the last day of a Los Angeles conference on abrupt climate change. The theory of global warming -- Crichton says warming has amounted to just half a degree Celsius in 100 years -- is that "greenhouse gases," particularly carbon dioxide, trap heat on Earth, causing . . . well, no one knows what, or when. Crichton's heroic skeptics delight in noting such things as the decline of global temperatures from 1940 to 1970. And that since 1970, glaciers in Iceland have been advancing. And that Antarctica is getting colder and its ice is getting thicker. Last week Fiona Harvey, the Financial Times' environmental correspondent, fresh from yet another international confabulation on climate change, wrote that while Earth's cloud cover "is thought" to have increased recently, no one knows whether this is good or bad. Is the heat-trapping by the clouds' water vapor greater or less than the sun's heat reflected back off the clouds into space? Climate-change forecasts, Harvey writes, are like financial forecasts but involve a vastly more complex array of variables. The climate forecasts, based on computer models analyzing the past, tell us that we do not know how much warming is occurring, whether it is a transitory episode or how much warming is dangerous -- or perhaps beneficial. One of the good guys in "State of Fear" cites Montaigne's axiom: "Nothing is so firmly believed as that which least is known." Which is why 30 years ago the fashionable panic was about global cooling. The New York Times (Aug. 14, 1975) reported "many signs" that "Earth may be heading for another ice age." Science magazine (Dec. 10, 1976) warned about "extensive Northern Hemisphere glaciation." "Continued rapid cooling of the Earth" (Global Ecology, 1971) could herald "a full-blown 10,000-year ice age" (Science, March 1, 1975). The Christian Science Monitor reported (Aug. 27, 1974) that Nebraska's armadillos were retreating south from the cooling. Last week The Post reported that global warming has caused a decline in Alaska's porcupine caribou herd and has lured the golden orange prothonotary warbler back from southern wintering grounds to Richmond a day earlier for nearly two decades. Or since global cooling stopped. Maybe. Gregg Easterbrook, an acerbic student of eco-pessimism, offers a "Law of Doomsaying": Predict catastrophe no later than 10 years hence but no sooner than five years away -- soon enough to terrify, but far enough off that people will forget if you are wrong. Because Crichton remembers yesterday's discarded certitudes, millions of his readers will be wholesomely skeptical of today's. --snip-- -------------------------------------------- -- I'm in touch with my Inner Curmudgeon. -- http://diversify.com Comprehensive Website Development ================================================== ========== |
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"Gunner" wrote in message ... On 17 Jun 2005 17:55:46 -0700, "BC" wrote: How about the cosmic truth that if every family unit on the planet got a 1500 square foot split level home on an acre of land, the resulting subdivision would not fill Texas? Gunner Right - if every "family unit" had about 38 members. And what does the size of the house have to do with it? |
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On Sat, 18 Jun 2005 20:23:29 GMT, "Laurie Forbes"
wrote: "Gunner" wrote in message .. . On 17 Jun 2005 17:55:46 -0700, "BC" wrote: How about the cosmic truth that if every family unit on the planet got a 1500 square foot split level home on an acre of land, the resulting subdivision would not fill Texas? Gunner Right - if every "family unit" had about 38 members. And what does the size of the house have to do with it? Work out the math again. And it means that the entire population of the planet can live in Texas, leaving the remainder of the planet to feed em. Only in the Cities of Europe and India does it look like an ant colony. Get outside of town..and there is lots of wide open space to grow stuff. Generally, its dictatorial government that tends to starve its own peoples to death. Not the lack of farming ability or resources. Gunner "Considering the events of recent years, the world has a long way to go to regain its credibility and reputation with the US." unknown |
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Gunner wrote:
On 17 Jun 2005 17:55:46 -0700, "BC" wrote: It's just a matter of understanding the true scale of things and what we humans are capable of. Google-up the history of the "passenger pigeon" -- that's a very good cautionary tale about what happens when we go about things cluelessly and make wholly naive assumptions about our impact on nature. Being environmentally conscious is not being concerned with the entire planet -- just that extremely thin coating around it that we actually live in. Here's my last trick quiz for the machinists out the according this: http://www.bca-pool.com/play/tournam...es/equip.shtml billiard balls are suppose to have a diameter of 2 1/4" +/- .005" If the earth was shrunk down to a diameter of 2 1/4," would it meet the tolerance standard for an official ball? The mean diameter of the Earth is 12,742.02 km, the highest point is 8,850 m (Everest), and the lowest is -10,911 m (Mariana Trench) Is that cosmic enough for you? -BC How about the cosmic truth that if every family unit on the planet got a 1500 square foot split level home on an acre of land, the resulting subdivision would not fill Texas? Gunner I'd say the cosmic calculator needs new batteries as Texas only has 167,624,960 acres of land. |
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"Tom" wrote in message
... Gunner wrote: On 17 Jun 2005 17:55:46 -0700, "BC" wrote: It's just a matter of understanding the true scale of things and what we humans are capable of. Google-up the history of the "passenger pigeon" -- that's a very good cautionary tale about what happens when we go about things cluelessly and make wholly naive assumptions about our impact on nature. Being environmentally conscious is not being concerned with the entire planet -- just that extremely thin coating around it that we actually live in. Here's my last trick quiz for the machinists out the according this: http://www.bca-pool.com/play/tournam...es/equip.shtml billiard balls are suppose to have a diameter of 2 1/4" +/- .005" If the earth was shrunk down to a diameter of 2 1/4," would it meet the tolerance standard for an official ball? The mean diameter of the Earth is 12,742.02 km, the highest point is 8,850 m (Everest), and the lowest is -10,911 m (Mariana Trench) Is that cosmic enough for you? -BC How about the cosmic truth that if every family unit on the planet got a 1500 square foot split level home on an acre of land, the resulting subdivision would not fill Texas? Gunner I'd say the cosmic calculator needs new batteries as Texas only has 167,624,960 acres of land. In Gunner's neck of the woods, family units tend to run big -- 38.5 people per house, apparently. Some of them are even related, in several simultaneous ways. Anyway, 38.5 people is a lot to pack into a 1500 sq. ft. (140 sq. meters) house. The bathroom lines are pretty long, but, if you stack them up three or four deep to sleep, you only have to run two shifts. -- Ed Huntress |
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Cliff wrote:
On Fri, 17 Jun 2005 12:21:59 -0400, JohnM wrote: Cliff wrote: On Thu, 16 Jun 2005 22:11:19 -0400, JohnM wrote: Besides, if you read into it a bit you'd find that the effort to tie global warming to the ozone thing is taking place. Ummm ..... in what way, exactly, are they the same thing? Cliff, work with me here. I didn't say they are the same thing, I said that the effort to tie them together is being made. Was that Gunner again? I can't speak for anyone else, I can only say what I've read on pages from, for instance, NASA where the two were mentioned together, as I said before, below. I feel that this means that someone mentioning them both in the same sentence isn't something to be confused with confusing them. The "and such" on the end of the quote is what I'm referring to, he's presenting the CFC thing as equal hogwash to the global warming hogwash. Or one of his close kin? I find that I'm still not convinced on either issue, Both are very real and have very sound and known scientific basis. Quibbles are about some of the finer details of the future but the wingers don't know that, not evengrasping what the subjects are about. Careful, you're starting to sound like a religous zealot.. I blame the educational system. although some googling I've been doing indicates that NASA is certainly convinced on the CFC thing; You can get sunburned a lot faster too. And a better tan sooner too- just one of the advances of modern society.. they present it not as a theory but as a demonstrated fact. Strange that they only consider R12 and R11 in that issue though, Those were the major things being produced and released that were making matters worse the fastest. Some of the other Freons and allied chemicals are less stable in the atmosphere and break down faster IIRC. And/or contain less Chlorine to begin with. chlorine released to the atmosphere got no consideration whatsoever, It rapidly dissolves in any moisture & comes down again in the rain & snow. It does not get to the upper atmosphere as almost inert Freons do to be broken down there by the UV. This is possible. although I did manage to find one page where they did admit that volcanoes *are* a goodly source of what bothers them. Sometimes. Not much that can be done. And, IIRC, they send the stuff high at times .... but a bit later it all comes back down .... Where the two are being tied together is in "atmospheric waves", allegedly a product of global warming and, supposedly, a factor in the temperature of the stratosphere during the polar winters. You'll have to look it up for a better explanation.. I seem to recall something but ... ? Memory fades ... I'm gonna remember that.. Re; global warming.. I read some thoughts on the issue and the one that stuck with is was "If the climate is changing, we better hope it's warming and not cooling, 'cause warming is something we can do something about". I think that makes sense- do you? We can cut CO2. Hard to get more heat for crops if it's too cold ..... Indeed.. is there something on which we agree? John |
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On Sun, 19 Jun 2005 01:17:44 GMT, Gunner
wrote: On Sat, 18 Jun 2005 20:23:29 GMT, "Laurie Forbes" wrote: "Gunner" wrote in message . .. On 17 Jun 2005 17:55:46 -0700, "BC" wrote: How about the cosmic truth that if every family unit on the planet got a 1500 square foot split level home on an acre of land, the resulting subdivision would not fill Texas? Gunner Right - if every "family unit" had about 38 members. And what does the size of the house have to do with it? Work out the math again. And it means that the entire population of the planet can live in Texas, leaving the remainder of the planet to feed em. Only in the Cities of Europe and India does it look like an ant colony. Get outside of town..and there is lots of wide open space to grow stuff. Generally, its dictatorial government that tends to starve its own peoples to death. Not the lack of farming ability or resources. Gunner "Considering the events of recent years, the world has a long way to go to regain its credibility and reputation with the US." unknown Gunner just had a nasty dream about that many wingers crowded together ... and most of us know what rats do in such circumstances .... -- Cliff |
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On Sun, 19 Jun 2005 03:54:41 -0400, JohnM wrote:
Cliff wrote: On Fri, 17 Jun 2005 12:21:59 -0400, JohnM wrote: Cliff wrote: On Thu, 16 Jun 2005 22:11:19 -0400, JohnM wrote: Besides, if you read into it a bit you'd find that the effort to tie global warming to the ozone thing is taking place. Ummm ..... in what way, exactly, are they the same thing? Cliff, work with me here. I didn't say they are the same thing, I said that the effort to tie them together is being made. Was that Gunner again? I can't speak for anyone else, I can only say what I've read on pages from, for instance, NASA where the two were mentioned together, as I said before, below. Oak trees and rocks. There. I've mentioned two things together. If I plant rocks do I get oak trees? I feel that this means that someone mentioning them both in the same sentence isn't something to be confused with confusing them. The "and such" on the end of the quote is what I'm referring to, he's presenting the CFC thing as equal hogwash to the global warming hogwash. Or one of his close kin? I find that I'm still not convinced on either issue, Both are very real and have very sound and known scientific basis. Quibbles are about some of the finer details of the future but the wingers don't know that, not evengrasping what the subjects are about. Careful, you're starting to sound like a religous zealot.. Not I. Like I said, small quibbles about real effects (or rather, their long term effects in some of the finer details). I blame the educational system. although some googling I've been doing indicates that NASA is certainly convinced on the CFC thing; You can get sunburned a lot faster too. And a better tan sooner too- just one of the advances of modern society.. Many don't have sunscreen. It impacts cancer rates, animal populations, plants, building degradation, rubber, Ozone, smog, etc. they present it not as a theory but as a demonstrated fact. Strange that they only consider R12 and R11 in that issue though, Those were the major things being produced and released that were making matters worse the fastest. Some of the other Freons and allied chemicals are less stable in the atmosphere and break down faster IIRC. And/or contain less Chlorine to begin with. chlorine released to the atmosphere got no consideration whatsoever, It rapidly dissolves in any moisture & comes down again in the rain & snow. It does not get to the upper atmosphere as almost inert Freons do to be broken down there by the UV. This is possible. Fact. It's why salt from sea spray is no problem, as an example. although I did manage to find one page where they did admit that volcanoes *are* a goodly source of what bothers them. Sometimes. Not much that can be done. And, IIRC, they send the stuff high at times .... but a bit later it all comes back down .... Where the two are being tied together is in "atmospheric waves", allegedly a product of global warming and, supposedly, a factor in the temperature of the stratosphere during the polar winters. You'll have to look it up for a better explanation.. I seem to recall something but ... ? Memory fades ... I'm gonna remember that.. What? No essay? Re; global warming.. I read some thoughts on the issue and the one that stuck with is was "If the climate is changing, we better hope it's warming and not cooling, 'cause warming is something we can do something about". I think that makes sense- do you? We can cut CO2. Hard to get more heat for crops if it's too cold ..... Indeed.. is there something on which we agree? Off & on, probably. John -- Cliff |
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Cliff wrote:
On Sun, 19 Jun 2005 03:54:41 -0400, JohnM wrote: Cliff wrote: On Fri, 17 Jun 2005 12:21:59 -0400, JohnM wrote: Cliff wrote: On Thu, 16 Jun 2005 22:11:19 -0400, JohnM wrote: Besides, if you read into it a bit you'd find that the effort to tie global warming to the ozone thing is taking place. Ummm ..... in what way, exactly, are they the same thing? Cliff, work with me here. I didn't say they are the same thing, I said that the effort to tie them together is being made. Was that Gunner again? I can't speak for anyone else, I can only say what I've read on pages from, for instance, NASA where the two were mentioned together, as I said before, below. Oak trees and rocks. There. I've mentioned two things together. If I plant rocks do I get oak trees? I suppose that depends on your reasoning. I'm not saying that the ozone thing and the global warming thing are interconnected, I'm simply stating that some apparently responsible people are saying that it's at least possible. If those two issues are rocks and oak trees to you then you're going to have trouble getting me to dispute the issue with you. I have been known to take any side on an issue, just to dispute it, but I'm not going to on this one. I feel that this means that someone mentioning them both in the same sentence isn't something to be confused with confusing them. The "and such" on the end of the quote is what I'm referring to, he's presenting the CFC thing as equal hogwash to the global warming hogwash. Or one of his close kin? I find that I'm still not convinced on either issue, Both are very real and have very sound and known scientific basis. Quibbles are about some of the finer details of the future but the wingers don't know that, not evengrasping what the subjects are about. Careful, you're starting to sound like a religous zealot.. Not I. Like I said, small quibbles about real effects (or rather, their long term effects in some of the finer details). No, the "wingers don't know that" statement was what I was referring to. It's as much a matter of belief as knowlege, and it's also a matter of whether or not one finds it to be important.. I'm curious- what label do you assign to yourself to distinguish yourself from "wingers"? I blame the educational system. although some googling I've been doing indicates that NASA is certainly convinced on the CFC thing; You can get sunburned a lot faster too. And a better tan sooner too- just one of the advances of modern society.. Many don't have sunscreen. It impacts cancer rates, animal populations, plants, building degradation, rubber, Ozone, smog, etc. I guess you have to pick your issues.. here's one I came across on another group: Did you know that: "Trace quantities of uranium in coal range from less than 1 part per million (ppm) in some samples to around 10 ppm in others. Generally, the amount of thorium contained in coal is about 2.5 times greater than the amount of uranium." http://www.ornl.gov/info/ornlreview/...t/colmain.html Did you know that: "total world consumption of coal in 2001, at 5.26 billion short tons" http://www.eia.doe.gov/oiaf/ieo/pdf/coal.pdf Doing the math shows that between 5.26 thousand and 52.6 thousand *TONS* or uranium were dumped into the environment in just that single YEAR, as by-products of coal-burning. Multiply by 2.5 for thorium... There's one assumption in there that I don't believe is perfect, but it's a very interesting issue.. among many. they present it not as a theory but as a demonstrated fact. Strange that they only consider R12 and R11 in that issue though, Those were the major things being produced and released that were making matters worse the fastest. Some of the other Freons and allied chemicals are less stable in the atmosphere and break down faster IIRC. And/or contain less Chlorine to begin with. chlorine released to the atmosphere got no consideration whatsoever, It rapidly dissolves in any moisture & comes down again in the rain & snow. It does not get to the upper atmosphere as almost inert Freons do to be broken down there by the UV. This is possible. Fact. It's why salt from sea spray is no problem, as an example. although I did manage to find one page where they did admit that volcanoes *are* a goodly source of what bothers them. Sometimes. Not much that can be done. And, IIRC, they send the stuff high at times .... but a bit later it all comes back down .... Where the two are being tied together is in "atmospheric waves", allegedly a product of global warming and, supposedly, a factor in the temperature of the stratosphere during the polar winters. You'll have to look it up for a better explanation.. I seem to recall something but ... ? Memory fades ... I'm gonna remember that.. What? No essay? No. No essay. Hope I didn't disappoint.. I'm sure there's one building up somewhere though, watch for it. Re; global warming.. I read some thoughts on the issue and the one that stuck with is was "If the climate is changing, we better hope it's warming and not cooling, 'cause warming is something we can do something about". I think that makes sense- do you? We can cut CO2. Hard to get more heat for crops if it's too cold ..... Indeed.. is there something on which we agree? Off & on, probably. Strange, ain't it.. John John |
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On Fri, 17 Jun 2005 18:47:51 -0500, John Scheldroup wrote:
.... Lets keep in mind that technology alone is not the only great criteria that makes a civilization advanced, a life philosophy like knowing the ten commandments are not commands but a philosophy of life to live by, later on us humans might be the perfect models which other advanced civilizations will hope to make contact with, sometime soon we both hope G You have to redeem your inner devils. I think when enough people heal, we'll learn how to levitate and stuff: http://www.godchannel.com/redemption.html -- Love, Rich for further information, please visit http://www.godchannel.com |
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yourname wrote: to Munich, technology so far that means catch-up to Detroit. Hydrogen is a farce. All it does is move pollution/CO2 to somewhere else. Unless you know a non electric way of producing hydrogen. How funny is burning coal to make hydrogen? John I'm still voting for ethanol Same argument. How much tractor fuel is spent planting, growing, fertilizing, and harvesting the biomass to make the alcohol? I think the ultimate answer, do-able today, is nuclear electric and electric cars, perhaps hybrids for trips. Yes, I know about the fuel disposal issues, but those are solvable with enough attention given. I expect at some point we will be sending our non-recycleable radioactive wastes into space, toward the sun perhaps. Way too expensive now, but the delta will narrow as the footprint grows. |
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The real kicker is that the same enviro-nuts who are screaming about
global warming and greenhouse gases... are fighting every proposal to do something about the problem. We have environmentalists here fighting a wind farm because it will be too close to a marshland... and they stopped a proposed ethanol plant just down the road because of "potential environmental dangers". The "environmental movement" is showing it's true colors... they don't have any intention of solving the perceived problems; they just want to prevent anybody else from making a living off the land! If the "government" was going to build the wind farm or ethanol plant at a huge cost to the taxpayers... that would be fine; but since some private firm actually stands to make some money while reducing our dependence on foreign oil... these clowns fight them tooth & nail. "Kirk Gordon" wrote in message news:1119355653.77eb1281c3c0cd113bf5c64522c28485@t eranews... Edw wrote: Has it occurred to you that the biosphere has evolved in a climate that has remained relatively stable for tens of thousands of years? It hasn't. Earth's climate varies all over the map, even on relatively short time frames. And "tens of thousands of years" isn't much in terms of evolution. You're worried about things that aren't even true. There are crops and fauna that would not survive such a change. There are ALWAYS plants and animals that live on the edge of extinction. And they fall off the edge every day, for reasons that have nothing to do with humans burning fossil fuels. Come to think of it, where do you imagine that those fossil fuels came from in the first place? Extinctions happen constantly, in response to every little change in anything about the Earth, the sun, the passing of a comet, or just about any other factor. Species are born, and species die. If they didn't, evolution wouldn't happen. Areas that are now productive would shift elsewhere, without respect to national frontiers. Supplies of fresh, potable water would also shift, as rainfall patterns, permafrost and snowfall amounts shifted toward the new temperate zones. Do you know how many wars have been fought over access to water? You mean areas like the Northern half of the US, which was once covered by glaciers, and was an ocean before that; but which now produces enough food for a significant fraction of the whole world? Or are you thinking about the Sub-Sahara regions in Africa, which once were an ideal place for primates to evolve into people, but which are now hostile and hard to live in? Nature giveth, and Nature taketh away. That's the rules; and we all have to live (or not) with them. Are you fimiliar with the shift in patterns of dangerous weather - tornadoes, tropical storms, flooding and drought? Or the increased incidence of tidal bores? Are you familiar with how complex the Earth really is, and how little science really knows about how and why things work the way they do? Has it occurred to you that maybe even the most catastrophic changes are actually nothing more than Earth getting back to normal after having been unusually friendly for a while? Little teeny bits of carelessly selected information are NOT a good way to plan the survival of an entire species. KG |
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Cliff wrote:
On Sun, 19 Jun 2005 01:17:44 GMT, Gunner wrote: On Sat, 18 Jun 2005 20:23:29 GMT, "Laurie Forbes" wrote: "Gunner" wrote in message ... On 17 Jun 2005 17:55:46 -0700, "BC" wrote: How about the cosmic truth that if every family unit on the planet got a 1500 square foot split level home on an acre of land, the resulting subdivision would not fill Texas? Gunner Right - if every "family unit" had about 38 members. And what does the size of the house have to do with it? Work out the math again. And it means that the entire population of the planet can live in Texas, leaving the remainder of the planet to feed em. Only in the Cities of Europe and India does it look like an ant colony. Get outside of town..and there is lots of wide open space to grow stuff. Generally, its dictatorial government that tends to starve its own peoples to death. Not the lack of farming ability or resources. Gunner "Considering the events of recent years, the world has a long way to go to regain its credibility and reputation with the US." unknown Gunner just had a nasty dream about that many wingers crowded together ... and most of us know what rats do in such circumstances .... Heh.. they turn into liberals.. Yup, that's a nasty ol' nightmare. John |
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So in other words, desperate times require
people to stop being lazy and dumb? -BC |
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On Mon, 20 Jun 2005 13:39:37 -0400, JohnM wrote:
Not I. Like I said, small quibbles about real effects (or rather, their long term effects in some of the finer details). No, the "wingers don't know that" statement was what I was referring to. It's as much a matter of belief as knowlege, and it's also a matter of whether or not one finds it to be important.. Ummm ... but we know about CO2 & the greenhouse effect .... it all goes back to the IR properties of CO2 & can be rather well deduced & calculated from there for a given quantity of CO2 in the atmosphere. What remains a bit fuzzy is not that the planet takes in more heat than it radiates now (hence the "warming") but rather where all the CO2 that's produced goes (much dissolves in the oceans which may release it later as they warm up) and some of the fine details of the measurements of where all the heat is going (now & in the future) and how precisely we can measure & *predict* the effects. Wingers tend to be a bit faith based G. And uneducated. -- Cliff |
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On Mon, 20 Jun 2005 13:39:37 -0400, JohnM wrote:
I guess you have to pick your issues.. here's one I came across on another group: Did you know that: "Trace quantities of uranium in coal range from less than 1 part per million (ppm) in some samples to around 10 ppm in others. Generally, the amount of thorium contained in coal is about 2.5 times greater than the amount of uranium." http://www.ornl.gov/info/ornlreview/...t/colmain.html Did you know that: "total world consumption of coal in 2001, at 5.26 billion short tons" http://www.eia.doe.gov/oiaf/ieo/pdf/coal.pdf Doing the math shows that between 5.26 thousand and 52.6 thousand *TONS* or uranium were dumped into the environment in just that single YEAR, as by-products of coal-burning. Multiply by 2.5 for thorium... There's one assumption in there that I don't believe is perfect, but it's a very interesting issue.. among many. You may wish to do some fact & math checking --- I don't have the time today ..... http://www.mindfully.org/Energy/Coal...-CCW1jul93.htm [ Total U.S. releases in 1982 (from 154 typical plants) amounted to 801 tons of uranium (containing 11,371 pounds of uranium-235) and 1971 tons of thorium. These figures account for only 74% of releases from combustion of coal from all sources. Releases in 1982 from worldwide combustion of 2800 million tons of coal totaled 3640 tons of uranium (containing 51,700 pounds of uranium-235) and 8960 tons of thorium. ] 99.5% + of this is locked in the fly ash I think. -- Cliff |
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Ed Huntress wrote:
However, the energy consumed in manufacturing a vehicle, as we said above, is a miniscule part of the total life-cycle energy consumption of any vehicle. There's an interesting, easy-to-read white paper that will show you what the trends a A number of years ago a LLNL study put the manufacturing portion of total life cycle energy consumption of an automobile at close to 50%. Increased use of plastics, thinner/recycled steel, and greater lifespans have reduced this somewhat, but it is still in the same order of magnitude with roughly 1/3 of the total life cycle energy being used just to build a car. Not what I would call minuscule, but headed in the right direction. -- jeff |
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"jeff" wrote in message
news:P4hue.2132$G4.2010@trnddc09... Ed Huntress wrote: However, the energy consumed in manufacturing a vehicle, as we said above, is a miniscule part of the total life-cycle energy consumption of any vehicle. There's an interesting, easy-to-read white paper that will show you what the trends a A number of years ago a LLNL study put the manufacturing portion of total life cycle energy consumption of an automobile at close to 50%. Increased use of plastics, thinner/recycled steel, and greater lifespans have reduced this somewhat, but it is still in the same order of magnitude with roughly 1/3 of the total life cycle energy being used just to build a car. Not what I would call minuscule, but headed in the right direction. Manufacturing has never been over 5%. Where did you get that data? It's expected to go up, with increased use of lightweight materials, but total life-cycle energy consumption will go down. -- Ed Huntress |
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Cliff wrote:
On Mon, 20 Jun 2005 13:39:37 -0400, JohnM wrote: I guess you have to pick your issues.. here's one I came across on another group: Did you know that: "Trace quantities of uranium in coal range from less than 1 part per million (ppm) in some samples to around 10 ppm in others. Generally, the amount of thorium contained in coal is about 2.5 times greater than the amount of uranium." http://www.ornl.gov/info/ornlreview/...t/colmain.html Did you know that: "total world consumption of coal in 2001, at 5.26 billion short tons" http://www.eia.doe.gov/oiaf/ieo/pdf/coal.pdf Doing the math shows that between 5.26 thousand and 52.6 thousand *TONS* or uranium were dumped into the environment in just that single YEAR, as by-products of coal-burning. Multiply by 2.5 for thorium... There's one assumption in there that I don't believe is perfect, but it's a very interesting issue.. among many. You may wish to do some fact & math checking --- I don't have the time today ..... http://www.mindfully.org/Energy/Coal...-CCW1jul93.htm [ Total U.S. releases in 1982 (from 154 typical plants) amounted to 801 tons of uranium (containing 11,371 pounds of uranium-235) and 1971 tons of thorium. These figures account for only 74% of releases from combustion of coal from all sources. Releases in 1982 from worldwide combustion of 2800 million tons of coal totaled 3640 tons of uranium (containing 51,700 pounds of uranium-235) and 8960 tons of thorium. ] 99.5% + of this is locked in the fly ash I think. That's entirely possible. I was simply pointing out that there's more issues than one in the world and we each have to chose which concerns us. John |
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On Thu, 23 Jun 2005 01:31:56 -0400, the opaque JohnM
spake: --snip-- combustion of coal from all sources. Releases in 1982 from worldwide combustion of 2800 million tons of coal totaled 3640 tons of uranium (containing 51,700 pounds of uranium-235) and 8960 tons of thorium. ] 99.5% + of this is locked in the fly ash I think. That's entirely possible. I was simply pointing out that there's more issues than one in the world and we each have to chose which concerns us. Causes? Issues? I have this quote on my wall in the office: To change one's self is sufficient. It's the idiots who want to change the world who are causing all the trouble. --Anonymous ----- = Dain Bramaged...but having lots of fun! = http://www.diversify.com Comprehensive Website Development |
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Ed Huntress wrote:
"jeff" wrote in message news:P4hue.2132$G4.2010@trnddc09... Ed Huntress wrote: However, the energy consumed in manufacturing a vehicle, as we said above, is a miniscule part of the total life-cycle energy consumption of any vehicle. There's an interesting, easy-to-read white paper that will show you what the trends a A number of years ago a LLNL study put the manufacturing portion of total life cycle energy consumption of an automobile at close to 50%. Increased use of plastics, thinner/recycled steel, and greater lifespans have reduced this somewhat, but it is still in the same order of magnitude with roughly 1/3 of the total life cycle energy being used just to build a car. Not what I would call minuscule, but headed in the right direction. Manufacturing has never been over 5%. Where did you get that data? It's expected to go up, with increased use of lightweight materials, but total life-cycle energy consumption will go down. -- Ed Huntress The "close to 50%" was from a casual conversation some 15 years ago with an engineer in the precision engineering lab at Livermore when I was out there on a CRADA. It was in large measure based on the 80000 mile throw away Detroit junk of the late 70s. I haven't been able to lay my hands on them, but ANL did a lot life cycle modeling of work in that era as well. Most of the current analysis I see is based around "green" vehicles. Here's one that gets it down to 10% by claiming a 14 year life cycle for a 1990 Taurus: http://www.ilea.org/lcas/macleanlave1998.html Here is one that puts it at 30% http://www.co-design.co.uk/green.htm Here is one that runs about 20%: http://www.autosteel.org/pdfs/avc_20...t_analyses.pdf Where is your less than 5% from, because it flies in the face of everything I've seen in the past 25 years?. -- jeff |
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On Thu, 23 Jun 2005 13:50:46 GMT, jeff
wrote: The "close to 50%" was from a casual conversation some 15 years ago with an engineer in the precision engineering lab at Livermore when I was out there on a CRADA. It was in large measure based on the 80000 mile throw away Detroit junk of the late 70s. I haven't been able to lay my hands on them, but ANL did a lot life cycle modeling of work in that era as well. Most of the current analysis I see is based around "green" vehicles. Here's one that gets it down to 10% by claiming a 14 year life cycle for a 1990 Taurus: http://www.ilea.org/lcas/macleanlave1998.html Here is one that puts it at 30% http://www.co-design.co.uk/green.htm Here is one that runs about 20%: http://www.autosteel.org/pdfs/avc_20...t_analyses.pdf Where is your less than 5% from, because it flies in the face of everything I've seen in the past 25 years?. -- My 1995 Mazda/Ford pickup has 366,000 miles on the odometer. That should tend to squew the amortization. Same engine as the Taurus btw. Gunner "Pax Americana is a philosophy. Hardly an empire. Making sure other people play nice and dont kill each other (and us) off in job lots is hardly empire building, particularly when you give them self determination under "play nice" rules. Think of it as having your older brother knock the **** out of you for torturing the cat." Gunner |
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"jeff" wrote in message
news:W6zue.2318$HU.623@trnddc03... The "close to 50%" was from a casual conversation some 15 years ago with an engineer in the precision engineering lab at Livermore when I was out there on a CRADA. It was in large measure based on the 80000 mile throw away Detroit junk of the late 70s. I haven't been able to lay my hands on them, but ANL did a lot life cycle modeling of work in that era as well. Most of the current analysis I see is based around "green" vehicles. Here's one that gets it down to 10% by claiming a 14 year life cycle for a 1990 Taurus: http://www.ilea.org/lcas/macleanlave1998.html The "14 year life cycle" assumes consumption of only 6,700 gallons (878 thousand megajoules at 130 megajoules/US gallon of gasoline), so it's in line with the others: an assumption of a 120,000-mile life. MIT uses a figure of 300,000 kilometers. I don't remember what SAE used as the "life" of a car, for their life-cycle analyses. When I was materials editor at AM, the SAE and AISI (not to mention the aluminum and plastic makers) flooded us with statistics on life-cycle costs of cars, both current and hypothetical. That was in the '70s and early '80s. SAE was saying then that the energy cost of manufacture and materials was around 4.5%. AISI said it was less. I reported the SAE figures. d8-) The PDF I pointed to in an earlier message shows some graphs that come in around those old SAE figures, but it appears the independent, scholarly analyses have moved up to around 8%, by opening the range of upstream activities they're counting in the total energy audit. I just spent some time reading the extensive analysis that MIT did a few years ago, "ON THE ROAD IN 2020: A life-cycle analysis of new automobile technologies." It's 160 pages that lay the subject out in detail. They include a 1996 Toyota Camry for comparison with the new technologies (it's not their "baseline" vehicle, which actually is one that hasn't been built yet). There is much of a chapter devoted to how difficult it is to pin the figures down, because you have to make a lot of assumptions no matter how you do the analysis. Their bottom line, however, is around 8% (page 113). Unfortunately the two examples you posted that I looked at don't explain how they did their accounting, but the "couple of percent" comment at the co-design site, regarding the energy recovered from recycling, should make you suspicious. The example I posted a day or two ago (http://eerc.ra.utk.edu/ccpct/pdfs/2000-01-0595.pdf -- an SAE paper from the Center for Clean Technologies project at U of Tenn.) goes into more detail on the accounting. They have graphs but no numbers; still, take a look at it. But the MIT paper is the motherlode: http://lfee.mit.edu/public/el00-003.pdf. For anyone interested in this subject, as well as projections of where the trends are headed, it's worth downloading it. Look at Chapter 4, especially pages (in the PDF) 110 - 113. Happy reading. If you want to discuss the accounting, I hope you find someone who also reads the MIT report. I have a load of work to catch up on and have to drop it here. -- Ed Huntress |
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"Why" wrote in message
... Got you beat Gunner I have 1 1964 El camino, 1 1966 El camino & 1 1966 Chevelle, that's all the cars I own, but then old cars last forever VBG. Let's see 41 yrs & 39 yrs... Fix them with normal tools.. Pretty soon, the percentage of energy that went into building those cars, versus the percentage you've used idling them in your driveway, will disappear to statistical insignificance. However, when you pull those things into a gas station, they probably make you turn them off. Not because running them while they're filling your tank is dangerous, but because you're gaining on them. d8-) (I'd like to have the Chevelle...) -- Ed Huntress |
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On Thu, 23 Jun 2005 23:52:33 -0400, "Ed Huntress"
wrote: I just spent some time reading the extensive analysis Consider how much gasoline it takes to totally demolish a car in an accident, reforming all of that sheet metal. Consider how much energy it took to form that sheetmetal in the first place .... they have to compare a bit G. -- Cliff |
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On Fri, 24 Jun 2005 14:53:49 -0400, Cliff wrote:
On Thu, 23 Jun 2005 23:52:33 -0400, "Ed Huntress" wrote: I just spent some time reading the extensive analysis Consider how much gasoline it takes to totally demolish a car in an accident, reforming all of that sheet metal. Have you ever seen a car explode following an accident? I've been to hundreds of 'em, in a dozen years as a firefighter and EMT, and exactly none of 'em have exploded. They only do that in the movies. (checks headers) Ah. That's the "cliff" entity people have been talking to. Usually it crossposts more widely. Ah well, easy enough to fix. |
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On 24 Jun 2005 19:50:05 GMT, Dave Hinz wrote:
On Fri, 24 Jun 2005 14:53:49 -0400, Cliff wrote: On Thu, 23 Jun 2005 23:52:33 -0400, "Ed Huntress" wrote: I just spent some time reading the extensive analysis Consider how much gasoline it takes to totally demolish a car in an accident, reforming all of that sheet metal. Have you ever seen a car explode following an accident? Umm .. mechanical deformation was the subject. I've been to hundreds of 'em, in a dozen years as a firefighter and EMT, and exactly none of 'em have exploded. They only do that in the movies. Always amusing to see a plane do that when it crashes due to running out of fuel as well G. (checks headers) Ah. That's the "cliff" entity people have been talking to. Usually it crossposts more widely. Ah well, easy enough to fix. -- Cliff |
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"Cliff" wrote in message
... On Thu, 23 Jun 2005 23:52:33 -0400, "Ed Huntress" wrote: I just spent some time reading the extensive analysis Consider how much gasoline it takes to totally demolish a car in an accident, reforming all of that sheet metal. Consider how much energy it took to form that sheetmetal in the first place .... they have to compare a bit G. -- Cliff That's actually a high-school physics problem: 4,000 pounds of stuff going from 60 mph to zero...how many gallons of gasoline is that equivalent to? You can use 130 mJ (or 125,000 Btu) as a round number for the energy in a gallon of gasoline. And the number is...[c'mon, we're waiting g] -- Ed Huntress |
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On Fri, 24 Jun 2005 22:15:39 -0400, "Ed Huntress"
wrote: That's actually a high-school physics problem: Exercise left to the student G. Where are BB & Shu when you need them? -- Cliff |
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We are still exiting a cold ice age. The fact is the fact.
Stuff popping out of the arctic circle and the glaciers giving up more is just some of that fact. It is also a proved fact that a single volcano - e.g. the one that ran the US off the Phillopines bases - is far more dangerous to the world than what man (or woman) (or both) and all of the animals and plants (decay is bad) put together. The tons and tons of chlorine and many other chemicals changes the earths land as well as the oceans. With luck, we get a constant supply of fresh water delivered from outer space in the form of the car size ice 'balls' that fall into the polar regions. Most that come in below that are vaporized. The physical pollution made by the earth is massive. Dig down dozens of feet and you might find something that was on the surface a thousand years ago. Constant dusting from outer space as well as from eruptions and storms bury the world and in some cases pollute what man is trying to live on. Yes man does its share but nothing like in recent years and NOTHING like the current going on in China, and the south east Asia. Those areas as well as India and parts of Africa are really backwards and not thinking. The people are to poor to do for themselves but alternatives are not provided by their governments. Martin -- Martin Eastburn @ home at Lion's Lair with our computer lionslair at consolidated dot net NRA LOH, NRA Life NRA Second Amendment Task Force Charter Founder ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- |
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Let the record show that Gunner wrote back on Sat,
18 Jun 2005 09:04:07 GMT in rec.crafts.metalworking : On Fri, 17 Jun 2005 16:25:46 -0700, Ken Davey wrote: So if it ultimately is determined that there is "global warming" and is naturally occurring, will all the Greens commit sepuku right after paying me back for the costs we had to incure in changing from CFCs and such? Gunner I think you are a little confused here Gunner. CFCs have to do with the ozone layer; not global warming. Regards. Ken. Of course. And the ozone hole was destroyed in 1967 when a Nash Rambler hit a deer head on and the R12 in the air conditioner escaped from a busted radiator. What Ozone hole was that again? [insert ozone video link] http://www.koreus.com/files/200407/lego-zone.html tschus pyotr -- pyotr filipivich. as an explaination for the decline in the US's tech edge, James Niccol wrote "It used to be that the USA was pretty good at producing stuff teenaged boys could lose a finger or two playing with." |
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What was the name of that Catholic priest that helped establish the "Big
Bang" theory? Guy Consolomagno? |
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