by azutjw » Fri Sep 28, 2007 9:21 pm
OK, I can see some apologies are in order, and maybe a clarification or two. If I came across as a bit high-handed out of the gate, that was not my intent. I am an engineer, and when someone cuts me short with what I see as an over-simplistic answer, I take umbrage. Apparently I was expecting far too much acceptance far too quickly. I'm sorry; I am elderly, and a bit impatient. I did not, do not, and will not intend to offend. That being said, there are some responses in order.
Andy Wade: I did not imply that I felt your - or anybody's - primary purpose was to entertain me. Further, I am entertained by intellectual discussion, especially those that foster thinking in new ways about old things. Also, we need to reach agreement on the usage of "condescending". My intent was the secondary (or tertiary) definition, exhibiting a patronizing or superior attitude. I fail to see how you can impute that to me. Or perhaps this paragraph is an example? You, sir, are far too sensitive. And please keep the opinions of your "ar5e" out of it, secret or otherwise. If you consider taking an instant dislike to someone a reasonable action to save time, commend me, you have inspired me.
Chris Peterson: Thank you for a reasonably clear and explanatory response. I have only done a little work with optics, I know my understanding is minimal. Why do they have to be point sources? Or is that just a relative term? Why do you say a gravitational lens is so different from an ordinary one? The light is bent due to a relationship between entry and exit angle, with the amount of warping being dependent on the nature of the lens medium. Also, I did not restrict the cause to black holes only, I included neutron stars, hopefully allowing the consideration of any object of sufficient density. Regarding the known examples and their generation by super-galactic distances and masses, does that mean it couldn't possibly happen on a near and smaller scale? With my admittedly limited understanding of astrophysics, I think it is a reasonable - though certainly more rare - possibility.
Galactic Groove: Thank you also, for a response more on a par with my intentions; you reassure me - perhaps the fault is not entirely mine - just mostly, something I can accept. However, I do not see why the entire ring must be originating from 1 star. Wouldn't it be more likely that a number a stars were scattered along the visual axis, with slight but varying normal offsets? I seem to remember seeing similar effects generated by 'ordinary' lenses. Not exact, but similar. And thanks ever so much for the links to APOD examples, they have joined my collection in a folder I have titled "Astronomalies". Lastly, I have a hard time buying into "can't". In my experience, there are occasions when it's true, but usually it's a cop-out. And especial thanks for the applause - considering the majority of the rest of this thread, it warms me.
jimmysnyder: Apparently the history lesson was wasted. The "imagine" quote is from Sir Arthur Eddington, and I wholly agree with him. I am sorry I don't have the time to draw for you a simple 2/3-D sketch offering the fruits of my imagination. Again, I am not suggesting a single star as the source of the entire - what, circulipse? Again, I consider ALL 'constellations' to be asterisms by strict definition. My first thought was that something this small and this clear just might be something else. Finally, you have a rather restricted idea of how science is done. If you can state a clear question, it's science. If you can find a clear answer, it's science. If you spend time and energy looking at various possibilities trying to find a clear answer, it's science. Even if all you find is more questions, it's still science. Also, engineering is science, although I wouldn't expect a software person to understand that. I am working now at a company that is developing an experimental aircraft, planned to do things that have not been able to be done previously. The swiftest make the most mistakes. "Slow and steady wins the race." When a thing hasn't been done before, it's always because someone wasn't trying the right combinations.
To all: Remembering what was done and said to Copernicus, Galileo, Columbus, Colt, Steward, Fulton, Ford, Tesla - and let us not forget DaVinci - my confidence in 'accepted knowledge' is marginal. I believe any question at all is a good one, and I am entertained by seeking answers.
If this has been far too verbose - - sue me.
OK, I can see some apologies are in order, and maybe a clarification or two. If I came across as a bit high-handed out of the gate, that was not my intent. I am an engineer, and when someone cuts me short with what I see as an over-simplistic answer, [i]I[/i] take umbrage. Apparently I was expecting far too much acceptance far too quickly. I'm sorry; I am elderly, and a bit impatient. I did not, do not, and will not intend to offend. That being said, there are some responses in order.
Andy Wade: I did not imply that I felt your - or anybody's - primary purpose was to entertain me. Further, [u]I[/u] am entertained by intellectual discussion, especially those that foster thinking in new ways about old things. Also, we need to reach agreement on the usage of "condescending". My intent was the secondary (or tertiary) definition, exhibiting a patronizing or superior attitude. I fail to see how you can impute that to me. Or perhaps this paragraph is an example? You, sir, are far too sensitive. And please keep the opinions of your "ar5e" out of it, secret or otherwise. If you consider taking an instant dislike to someone a reasonable action to save time, commend me, you have inspired me.
Chris Peterson: Thank you for a reasonably clear and explanatory response. I have only done a little work with optics, I know my understanding is minimal. Why do they have to be point sources? Or is that just a relative term? Why do you say a gravitational lens is so different from an ordinary one? The light is bent due to a relationship between entry and exit angle, with the amount of warping being dependent on the nature of the lens medium. Also, I did not restrict the cause to black holes only, I included neutron stars, hopefully allowing the consideration of any object of sufficient density. Regarding the known examples and their generation by super-galactic distances and masses, does that mean it couldn't possibly happen on a near and smaller scale? With my admittedly limited understanding of astrophysics, I think it is a reasonable - though certainly more rare - possibility.
Galactic Groove: Thank you also, for a response more on a par with my intentions; you reassure me - perhaps the fault is not entirely mine - just mostly, something I can accept. However, I do not see why the entire ring must be originating from 1 star. Wouldn't it be more likely that a number a stars were scattered along the visual axis, with slight but varying normal offsets? I seem to remember seeing similar effects generated by 'ordinary' lenses. Not exact, but similar. And thanks ever so much for the links to APOD examples, they have joined my collection in a folder I have titled "Astronomalies". Lastly, I have a hard time buying into "can't". In my experience, there are occasions when it's true, but usually it's a cop-out. And especial thanks for the applause - considering the majority of the rest of this thread, it warms me.
jimmysnyder: Apparently the history lesson was wasted. The "imagine" quote is from Sir Arthur Eddington, and I wholly agree with him. I am sorry I don't have the time to draw for you a simple 2/3-D sketch offering the fruits of my imagination. Again, I am not suggesting a single star as the source of the entire - what, circulipse? Again, I consider ALL 'constellations' to be asterisms by strict definition. My first thought was that something this small and this clear just [i]might[/i] be something else. Finally, you have a rather restricted idea of how science is done. If you can state a clear question, it's science. If you can find a clear answer, it's science. If you spend time and energy looking at various possibilities trying to find a clear answer, it's science. Even if all you find is more questions, it's still science. Also, engineering [u]is[/u] science, although I wouldn't expect a software person to understand that. I am working now at a company that is developing an experimental aircraft, planned to do things that have not been able to be done previously. The swiftest make the most mistakes. "Slow and steady wins the race." When a thing hasn't been done before, it's [u]always[/u] because someone wasn't trying the right combinations.
To all: Remembering what was done and said to Copernicus, Galileo, Columbus, Colt, Steward, Fulton, Ford, Tesla - and let us not forget DaVinci - my confidence in 'accepted knowledge' is marginal. I believe any question at all is a good one, and I am entertained by seeking answers.
If this has been far too verbose - - sue me.