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#111
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On 9/16/2015 5:17 PM, Spike wrote:
On 16/09/2015 18:43, wrote: In rec.radio.amateur.antenna Spike wrote: One needs to lard in some other factor. Imagine Hertz asking what use his waves could be, all he could do with them is turn them on and off. Go for it. If you succeed your Nobel is guaranteed, your name will be ranked right up there with Einstein, and you will be ushering in a whole new era of quantum physics. There are no such things as stupid questions, but there certainly are stupid answers. Indeed. -- Rick |
#112
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In rec.radio.amateur.antenna Spike wrote:
On 16/09/2015 18:43, wrote: In rec.radio.amateur.antenna Spike wrote: One needs to lard in some other factor. Imagine Hertz asking what use his waves could be, all he could do with them is turn them on and off. Go for it. If you succeed your Nobel is guaranteed, your name will be ranked right up there with Einstein, and you will be ushering in a whole new era of quantum physics. There are no such things as stupid questions, but there certainly are stupid answers. The problem is you don't understand why what I wrote is factual. No Nobel for you. -- Jim Pennino |
#113
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"Spike" wrote in message
... On 16/09/2015 18:43, wrote: In rec.radio.amateur.antenna Spike wrote: One needs to lard in some other factor. Imagine Hertz asking what use his waves could be, all he could do with them is turn them on and off. Go for it. If you succeed your Nobel is guaranteed, your name will be ranked right up there with Einstein, and you will be ushering in a whole new era of quantum physics. There are no such things as stupid questions, but there certainly are stupid answers. You have Jimmy Pendulumino down to a T, and he is very like the Kentish Duet of Reay and Cole, where both trip over themsleves in their haste to want to be abusive. |
#115
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"rickman" wrote in message
... I did a little work on sonar for TRW. I did a little work on power steering for TRW and was disturbed by their attempting to debug their software purely on the CANBus messages that came out; hardly a professional approach for such a safety-critical car component. |
#116
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On 9/16/2015 5:17 PM, Spike wrote:
On 16/09/2015 18:43, wrote: In rec.radio.amateur.antenna Spike wrote: One needs to lard in some other factor. Imagine Hertz asking what use his waves could be, all he could do with them is turn them on and off. Go for it. If you succeed your Nobel is guaranteed, your name will be ranked right up there with Einstein, and you will be ushering in a whole new era of quantum physics. There are no such things as stupid questions, but there certainly are stupid answers. I disagree. From years of corporate training, I have found exactly ONE stupid question. That is the one that is never asked. -- ================== Remove the "x" from my email address Jerry, AI0K ================== |
#117
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On 9/16/2015 5:30 PM, rickman wrote:
On 9/16/2015 4:54 PM, FBMBoomer wrote: On 9/14/2015 4:15 PM, rickman wrote: On 9/14/2015 2:59 PM, FBMBoomer wrote: On 9/9/2015 11:14 AM, gareth wrote: "Wayne" wrote in message ... "gareth" wrote in message ... 1. For those who suggest that RF transmissions are made up of photons, what is the amplitude envelope of each photon, and for how many cycles does it exist? Consider this. Waves and photons exist in visible light at any frequency. If the frequency is lowered below the visible spectrum all the way down to say, 1 MHz, at what point do the photons disappear? Or do they just get weak? Photons exist in visible light at MANY frequencies where such frequencies are generated by the transition of an electron to a lower energy orbit around an atom. What is the mechanism by which your photons at 1 MHz are created? I am not arguing with you Gareth. I think I am agreeing. I am lacking in theory. I freely admit that. I am going on common sense. Photons, light move through our atmosphere in a straight line unless reflected by air temperature layers or mirrors. EM radiation moves through our atmosphere in a more complex way. It is reflected by our ionosphere or might be absorbed by something. How is that different between light and other EM radiation? Radio waves are absorbed, refracted and reflected. Light waves are absorbed, refracted and reflected. The mistake (of many) that Gareth is making is in thinking that photons and waves are created separately and differently. *All* EM radiation can be viewed as photons or as waves depending on the nature of the observation or interaction. It does not matter how they were generated, they are just two ways of viewing the same thing. Consider the view of a train from along side the railroad tracks. It is long and moving fast. The same train as viewed from in front is not long at all and instead of looking like it is moving, is getting larger. This is just an analogy of course, but it shows that the two views reveal different perspectives on the same thing. It doesn't matter how the train came to be there, just how you look at it. My receiving antenna is a shielded loop. The antenna itself is copper and then it is covered with an aluminium shield that is grounded to stop the electrical part of the EM transmission. This guarantees that I will not receive any light/photons from my antenna. I'm not sure what you are trying to say. I don't know of loop antenna that *are* sensitive to light??? It simply makes no sense to me that I am receiving any information via light. I would love to hear a simple explanation that explains to me why my inverted V on 75 meters is emitting photons/light when I put 1500 watts of power to it. I remember years ago in physics class that this discussion came up in my college classroom. The professor told us that EM transmission was completely different than the transmission of light. It had occurred to me that if we built a transmitter on a frequency of visible light that somehow light would be emitted from the antenna. He said that there would be EM transmission but no light. I accepted his opinion because he knew far more than myself. Tell me how light is emitted in waves? How is that different from transmissions of radio waves? Is light always particles? If so, how do you explain diffraction? If light can be waves, how then can it be a particle? The exact same source of light can be viewed as particles or as waves. Your professor was clearly wrong. I'm amazed he was teaching college. I have accepted that explanation since 1968 when he was teaching that class. What I hear being said here is that EM transmission is composed of photons. I always thought of it as a simple electromagnetic wave, like what we use in transformers and radio communications every day. The issue is *not* are EM waves composed of photons. The issue is do you "see" EM waves as photons or as waves? This depends on your method of observation. Microwave ovens generate radio waves. Yet they are absorbed as quanta by exciting the water molecules. Emitted as radio waves, yet absorbed as photons... Again, what I hear being said here is that radio waves are just lower frequency light waves. Really? Not looking for a flame war, just a simple answer to my question. Yes, radio, microwaves, IR, visible light, UV light, x-rays, gamma rays are all just one continuous spectrum of the exact same phenomenon, existing as both waves and photons regardless of frequency or manner of creation. Anyone who tells you differently does not understand EM radiation... including your prior professors. I believe it now Rickman. I have had two clear explanations sent my way. I cannot fault my college professor. It was 1968 and perhaps when he was educated there was a clear delineation between light and EM radiation. He was a good man and taught me a lot about astrophysics. That was something he had a good handle on. The rest of us students were struggling. I understand what you are saying. However, QM was well understood in 1968. It is mostly the advancement toward the combination of QM and gravity that has been worked on in the intervening years, with not much progress really. It's a tough job. No, QM was NOT well understood in 1968. While we have a better understanding now, physicists even now don't claim it is "well understood". There are still way too many unknowns and unproven theories. snip -- ================== Remove the "x" from my email address Jerry, AI0K ================== |
#118
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On 9/16/2015 10:30 PM, Jerry Stuckle wrote:
On 9/16/2015 5:30 PM, rickman wrote: On 9/16/2015 4:54 PM, FBMBoomer wrote: On 9/14/2015 4:15 PM, rickman wrote: On 9/14/2015 2:59 PM, FBMBoomer wrote: On 9/9/2015 11:14 AM, gareth wrote: "Wayne" wrote in message ... "gareth" wrote in message ... 1. For those who suggest that RF transmissions are made up of photons, what is the amplitude envelope of each photon, and for how many cycles does it exist? Consider this. Waves and photons exist in visible light at any frequency. If the frequency is lowered below the visible spectrum all the way down to say, 1 MHz, at what point do the photons disappear? Or do they just get weak? Photons exist in visible light at MANY frequencies where such frequencies are generated by the transition of an electron to a lower energy orbit around an atom. What is the mechanism by which your photons at 1 MHz are created? I am not arguing with you Gareth. I think I am agreeing. I am lacking in theory. I freely admit that. I am going on common sense. Photons, light move through our atmosphere in a straight line unless reflected by air temperature layers or mirrors. EM radiation moves through our atmosphere in a more complex way. It is reflected by our ionosphere or might be absorbed by something. How is that different between light and other EM radiation? Radio waves are absorbed, refracted and reflected. Light waves are absorbed, refracted and reflected. The mistake (of many) that Gareth is making is in thinking that photons and waves are created separately and differently. *All* EM radiation can be viewed as photons or as waves depending on the nature of the observation or interaction. It does not matter how they were generated, they are just two ways of viewing the same thing. Consider the view of a train from along side the railroad tracks. It is long and moving fast. The same train as viewed from in front is not long at all and instead of looking like it is moving, is getting larger. This is just an analogy of course, but it shows that the two views reveal different perspectives on the same thing. It doesn't matter how the train came to be there, just how you look at it. My receiving antenna is a shielded loop. The antenna itself is copper and then it is covered with an aluminium shield that is grounded to stop the electrical part of the EM transmission. This guarantees that I will not receive any light/photons from my antenna. I'm not sure what you are trying to say. I don't know of loop antenna that *are* sensitive to light??? It simply makes no sense to me that I am receiving any information via light. I would love to hear a simple explanation that explains to me why my inverted V on 75 meters is emitting photons/light when I put 1500 watts of power to it. I remember years ago in physics class that this discussion came up in my college classroom. The professor told us that EM transmission was completely different than the transmission of light. It had occurred to me that if we built a transmitter on a frequency of visible light that somehow light would be emitted from the antenna. He said that there would be EM transmission but no light. I accepted his opinion because he knew far more than myself. Tell me how light is emitted in waves? How is that different from transmissions of radio waves? Is light always particles? If so, how do you explain diffraction? If light can be waves, how then can it be a particle? The exact same source of light can be viewed as particles or as waves. Your professor was clearly wrong. I'm amazed he was teaching college. I have accepted that explanation since 1968 when he was teaching that class. What I hear being said here is that EM transmission is composed of photons. I always thought of it as a simple electromagnetic wave, like what we use in transformers and radio communications every day. The issue is *not* are EM waves composed of photons. The issue is do you "see" EM waves as photons or as waves? This depends on your method of observation. Microwave ovens generate radio waves. Yet they are absorbed as quanta by exciting the water molecules. Emitted as radio waves, yet absorbed as photons... Again, what I hear being said here is that radio waves are just lower frequency light waves. Really? Not looking for a flame war, just a simple answer to my question. Yes, radio, microwaves, IR, visible light, UV light, x-rays, gamma rays are all just one continuous spectrum of the exact same phenomenon, existing as both waves and photons regardless of frequency or manner of creation. Anyone who tells you differently does not understand EM radiation... including your prior professors. I believe it now Rickman. I have had two clear explanations sent my way. I cannot fault my college professor. It was 1968 and perhaps when he was educated there was a clear delineation between light and EM radiation. He was a good man and taught me a lot about astrophysics. That was something he had a good handle on. The rest of us students were struggling. I understand what you are saying. However, QM was well understood in 1968. It is mostly the advancement toward the combination of QM and gravity that has been worked on in the intervening years, with not much progress really. It's a tough job. No, QM was NOT well understood in 1968. While we have a better understanding now, physicists even now don't claim it is "well understood". There are still way too many unknowns and unproven theories. Really? What parts of QM that relate to photons vs. waves are not well understood or even not well understood in '68? -- Rick |
#119
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Spike wrote:
On 16/09/2015 18:43, wrote: In rec.radio.amateur.antenna Spike wrote: One needs to lard in some other factor. Imagine Hertz asking what use his waves could be, all he could do with them is turn them on and off. Go for it. If you succeed your Nobel is guaranteed, your name will be ranked right up there with Einstein, and you will be ushering in a whole new era of quantum physics. There are no such things as stupid questions, but there certainly are stupid answers. I'm not sure that your statement would survive the Gareth Test. -- STC // M0TEY // twitter.com/ukradioamateur |
#120
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