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#61
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Richard Henry wrote:
Being an electrical engineer, I want to know if electrons will become positive. I've never had anything but positive experiances with electrons. They're just a bit glommy for my taste. -klaus |
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#62
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"Mary Malmros" wrote in message news:wOHRf.4222$Vb.248@trndny02... Bob wrote: "Mary Malmros" wrote in message news:BKqRf.1607 OK, smartass, will east and west switch too? Does it rotate or flip? Well, your existing compass can't flip, because it's made the way it is. If I understand right, while the north end of the needle now points to Ellesmere Island, now the south end will. But you know what? It ain't no big deal. Right now, you line up the north-marked end of the needle with north on the dial; if it reverses, you just line up the south-marked end of the needle with north on the dial, and bingo, you're pointed at Ellesmere Island the way you used to be. East is still east and west is still west and never the two shall meet. And how is it that you know where the magnetic pole will end up? It was the use of the word "reverse" that twigged me. Presuming that it was a correct usage, logically, what I wrote should correctly describe how a compass behaves, post-_reversal_. I certainly don't presume to know that. I'd say it's highly unlikely. You'd say _what_ is highly unlikely? That "reverse" means what the dictionary says it means? That magnetic "reversal" of the poles would result in them exactly reversing. That's just not likely to be the case. The poles move by nature even when not "reversing". The dictionary is not much help in this case. Bob |
#63
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Bob wrote: "Mary Malmros" wrote in message news:wOHRf.4222$Vb.248@trndny02... Bob wrote: "Mary Malmros" wrote in message news:BKqRf.1607 OK, smartass, will east and west switch too? Does it rotate or flip? Well, your existing compass can't flip, because it's made the way it is. If I understand right, while the north end of the needle now points to Ellesmere Island, now the south end will. But you know what? It ain't no big deal. Right now, you line up the north-marked end of the needle with north on the dial; if it reverses, you just line up the south-marked end of the needle with north on the dial, and bingo, you're pointed at Ellesmere Island the way you used to be. East is still east and west is still west and never the two shall meet. And how is it that you know where the magnetic pole will end up? It was the use of the word "reverse" that twigged me. Presuming that it was a correct usage, logically, what I wrote should correctly describe how a compass behaves, post-_reversal_. I certainly don't presume to know that. I'd say it's highly unlikely. You'd say _what_ is highly unlikely? That "reverse" means what the dictionary says it means? That magnetic "reversal" of the poles would result in them exactly reversing. That's just not likely to be the case. The poles move by nature even when not "reversing". The dictionary is not much help in this case. So that's why I asked (much earlier; did you go on vacation or something?) what exactly would happen in the case of this hypothetical "reversal". Apparently nobody knew then, and it seems nobody knows now. If the coiners of the phrase "polar reversal" are humpty-dumptying and decided to pick one word instead of the more accurate, "it moves around somewhere and we have no idea where," then perhaps someone (yourself?) could chime in and say so. |
#64
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"Mary Malmros" wrote in message news:ivxTf.2903 Well, your existing compass can't flip, because it's made the way it is. If I understand right, while the north end of the needle now points to Ellesmere Island, now the south end will. But you know what? It ain't no big deal. Right now, you line up the north-marked end of the needle with north on the dial; if it reverses, you just line up the south-marked end of the needle with north on the dial, and bingo, you're pointed at Ellesmere Island the way you used to be. East is still east and west is still west and never the two shall meet. And how is it that you know where the magnetic pole will end up? It was the use of the word "reverse" that twigged me. Presuming that it was a correct usage, logically, what I wrote should correctly describe how a compass behaves, post-_reversal_. I certainly don't presume to know that. I'd say it's highly unlikely. You'd say _what_ is highly unlikely? That "reverse" means what the dictionary says it means? That magnetic "reversal" of the poles would result in them exactly reversing. That's just not likely to be the case. The poles move by nature even when not "reversing". The dictionary is not much help in this case. So that's why I asked (much earlier; did you go on vacation or something?) what exactly would happen in the case of this hypothetical "reversal". Apparently nobody knew then, and it seems nobody knows now. If the coiners of the phrase "polar reversal" are humpty-dumptying and decided to pick one word instead of the more accurate, "it moves around somewhere and we have no idea where," then perhaps someone (yourself?) could chime in and say so. Vacation. Schweitzer for a week. Constant snow. Ahhhh! My understanding is that the magnetic poles are dependent on the flow of magma within the earth. The poles do seem to switch occasionally due to changes in that flow. They also gradually drift, probably due to smaller changes. The geologic records suggest that a "reversal" occurs, but probably not the accuracy of the reversal. I am no geologist however. Bob |
#65
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Bob wrote: "Mary Malmros" wrote in message news:ivxTf.2903 Well, your existing compass can't flip, because it's made the way it is. If I understand right, while the north end of the needle now points to Ellesmere Island, now the south end will. But you know what? It ain't no big deal. Right now, you line up the north-marked end of the needle with north on the dial; if it reverses, you just line up the south-marked end of the needle with north on the dial, and bingo, you're pointed at Ellesmere Island the way you used to be. East is still east and west is still west and never the two shall meet. And how is it that you know where the magnetic pole will end up? It was the use of the word "reverse" that twigged me. Presuming that it was a correct usage, logically, what I wrote should correctly describe how a compass behaves, post-_reversal_. I certainly don't presume to know that. I'd say it's highly unlikely. You'd say _what_ is highly unlikely? That "reverse" means what the dictionary says it means? That magnetic "reversal" of the poles would result in them exactly reversing. That's just not likely to be the case. The poles move by nature even when not "reversing". The dictionary is not much help in this case. So that's why I asked (much earlier; did you go on vacation or something?) what exactly would happen in the case of this hypothetical "reversal". Apparently nobody knew then, and it seems nobody knows now. If the coiners of the phrase "polar reversal" are humpty-dumptying and decided to pick one word instead of the more accurate, "it moves around somewhere and we have no idea where," then perhaps someone (yourself?) could chime in and say so. Vacation. Schweitzer for a week. Constant snow. Ahhhh! Bite Me. My understanding is that the magnetic poles are dependent on the flow of magma within the earth. The poles do seem to switch occasionally due to changes in that flow. They also gradually drift, probably due to smaller changes. The geologic records suggest that a "reversal" occurs, but probably not the accuracy of the reversal. I am no geologist however. I should probably stop bugging you with this, then, but I'll ask one mo at what point do us map-and-compass times need to reconsider our magnetic declination? |
#66
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On Mon, 20 Mar 2006 23:27:01 GMT, Mary Malmros
wrote: Bob wrote: "Mary Malmros" wrote in message news:ivxTf.2903 Well, your existing compass can't flip, because it's made the way it is. If I understand right, while the north end of the needle now points to Ellesmere Island, now the south end will. But you know what? It ain't no big deal. Right now, you line up the north-marked end of the needle with north on the dial; if it reverses, you just line up the south-marked end of the needle with north on the dial, and bingo, you're pointed at Ellesmere Island the way you used to be. East is still east and west is still west and never the two shall meet. And how is it that you know where the magnetic pole will end up? It was the use of the word "reverse" that twigged me. Presuming that it was a correct usage, logically, what I wrote should correctly describe how a compass behaves, post-_reversal_. I certainly don't presume to know that. I'd say it's highly unlikely. You'd say _what_ is highly unlikely? That "reverse" means what the dictionary says it means? That magnetic "reversal" of the poles would result in them exactly reversing. That's just not likely to be the case. The poles move by nature even when not "reversing". The dictionary is not much help in this case. So that's why I asked (much earlier; did you go on vacation or something?) what exactly would happen in the case of this hypothetical "reversal". Apparently nobody knew then, and it seems nobody knows now. If the coiners of the phrase "polar reversal" are humpty-dumptying and decided to pick one word instead of the more accurate, "it moves around somewhere and we have no idea where," then perhaps someone (yourself?) could chime in and say so. Vacation. Schweitzer for a week. Constant snow. Ahhhh! Bite Me. Yeah, me too! I only got to ski four of it last week! It was sweeeeeeeet. Dave M My understanding is that the magnetic poles are dependent on the flow of magma within the earth. The poles do seem to switch occasionally due to changes in that flow. They also gradually drift, probably due to smaller changes. The geologic records suggest that a "reversal" occurs, but probably not the accuracy of the reversal. I am no geologist however. I should probably stop bugging you with this, then, but I'll ask one mo at what point do us map-and-compass times need to reconsider our magnetic declination? |
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