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#561
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On Fri, 7 Dec 2007 14:53:09 -0800 (PST), art
wrote: Somebody somewhere has obviously postulated that gravitational forces are every where which puts science back in the stone ages. Hi Art, It was some schlemiel called Isaac Newton. He offered a very simple equation you probably are not familiar with: G times the Mass of Body A time the Mass of Body B divided by distance between them squared This English clown's theory was put into a cocked hat by Einstein - so you two have something in common! 73's Richard Clark, KB7QHC |
#562
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Michael Coslo wrote:
... It is a well know scientific fact the only true aphrodisiac is a man doing housework. - 73 de Mike N3LI - Hmmm, I differ, my wife will trade work for sex--but only if I do the work. I don't then an "aphrodisiac effect" is at play though ... LOL Regards, JS |
#563
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John Smith wrote:
... I don't think an "aphrodisiac effect" is at play though ... LOL ... Hmmm, the 20mg Hydrocodone has more of a "kick" than I realize. Regards, JS |
#564
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On 7 Dec, 16:46, Richard Clark wrote:
On Fri, 7 Dec 2007 14:53:09 -0800 (PST), art wrote: Somebody somewhere has obviously postulated that gravitational forces are every where which puts science back in the stone ages. Hi Art, It was some schlemiel called Isaac Newton. He offered a very simple equation you probably are not familiar with: G times the Mass of Body A time the Mass of Body B divided by distance between them squared This English clown's theory was put into a cocked hat by Einstein - so you two have something in common! 73's Richard Clark, KB7QHC I did not know that equation. Einstein said a lot of things and was often proved in error. Did he mention equilibrium or the other laws like: Every action has an equal and opposite reaction? For that matter how many laws of Newton did he put down? Any idea where I can read up on that and how he arrived at that conclusion? Seems odd that we have so many gravity centers in this universe and a neutral point never occurs.....anywhere. Some of those stationary things in the sky must be holding on to a piece of string tied to the moon No. I do not have any books on Einstein but do have Planck and I don't recall him mentioning that.Is it just called Einsteins Law of ??????? Art Oh, and another thing why are you injecting the word "clown"? Are you reverting to your old tricks or did you just slip up? |
#565
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On Dec 7, 4:09 pm, Cecil Moore wrote:
Keith Dysart wrote: So sometimes a 600 to 100 ohm discontinuity produces a 36.6 degree phase shift and sometimes it produces a 22.7 degree phase shift (and probably any value in between). Yes, of course - nobody said the phase shift wasn't a variable. Why would you expect it to be a constant? It is a variable that depends upon the phase of the component forward and reflected waves. I suggest that "work[ing] up the phasor diagrams of the component voltages (or currents) at the junction where rho = (600-100)/(600+100) = 0.7143" will not be useful for predicting the phase shift. It will be useful for reporting that particular phase shift. If other conditions change, that phase shift will change. What is unexpected about that? You implied that you were going to compute it using just rho, which would mean it would be constant for any pair of impedances. With more inputs, it might be possible to compute a number that, when added to the actual electrical lengths of the lines, will result in 90 degrees. I expect the algorithm to be fairly complicated. Of course, one can always just say it is equal to 90 minus the sum of the electrical lengths of the lines, though if there were two or more impedance discontinuities, it might be difficult to apportion the difference between them. I await the algorithm. ....Keith |
#566
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On Dec 7, 4:10 pm, Cecil Moore wrote:
Keith Dysart wrote: Sounds good, but mostly you do not examine ideal conditions because they tend to show that the models fail. I believe that is a false statement. Please prove your assertion. The best example was when you refused to discuss the reflections at the output of an amplifier with a well defined output impedance because a typical amateur transmitter does not have a well defined output impedance. The discussion was going to demolish the idea of complete re-reflection at the output of a transmitter but stalled because you refused to use the simple case to examine the issue. Using the more complicated scenario of a real transmitter it was much easier to obfuscate with the result that the discussion went nowhere. Which was sad because there was much opportunity for learning there. ....Keith |
#567
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Keith Dysart wrote:
You implied that you were going to compute it using just rho, which would mean it would be constant for any pair of impedances. No, I did not. Rho can be constant but the phase angle of the incident voltage changes with position. Therefore, the phase angle of the reflected voltage changes with position. This subject is already covered in my energy analysis article at: http://www.w5dxp.com/energy.htm -- 73, Cecil http://www.w5dxp.com |
#568
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Keith Dysart wrote:
The best example was when you refused to discuss the reflections at the output of an amplifier with a well defined output impedance because a typical amateur transmitter does not have a well defined output impedance. I tend to avoid discussions about amplifiers because I know very little about amplifiers, real or imagined. -- 73, Cecil http://www.w5dxp.com |
#569
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On Fri, 7 Dec 2007 18:14:36 -0800 (PST), art
wrote: I did not know that equation. Einstein said a lot of things and was often proved in error. Did he mention equilibrium or the other laws like: Every action has an equal and opposite reaction? Hi Arthur, Every equation describes equilibrium, by definition. For that matter how many laws of Newton did he put down? All of them. Any idea where I can read up on that and how he arrived at that conclusion? Seems odd that we have so many gravity centers in this universe and a neutral point never occurs.....anywhere. Not so. A simple example is called the "Trojan points." Some of those stationary things in the sky must be holding on to a piece of string tied to the moon Well, given the moon moves, the string must move whatever is tied to it. In short, there is nothing stationary anywhere. No. I do not have any books on Einstein but do have Planck and I don't recall him mentioning that.Is it just called Einsteins Law of ??????? General relativity. 73's Richard Clark, KB7QHC |
#570
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AI4QJ wrote:
"art" wrote in message ... In fact the law of statics is based on gravitational field which extends to what Gauss called the limits of gravitational effects. Quite a few other laws are based on similar logic Art Unwin KB9MZ.....XG(uk) What is the mass of 1 Volt/meter? Actually, you can store energy in an electrical field easily enough; ask any capacitor. And energy has a mass equivalent. It may not be much, but it isn't zero. This probably isn't what Art means, though. If you thought about his post deeply enough, and in just the right way, you'd see what he's getting at. Smart ass questions aren't helpful. Not that I'm agreeing with Art. I'm not. But if you want to understand, as opposed to just being sarcastic, you'll have to train your mind to operate the way his does. Cecil, on the other hand, wants to argue, so his posts aren't as much fun, but he does write some entertaining things on occasion, and his theories are tolerable enough as long as you realize they're all quite wrong. 73, KA6RUH |
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