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#1
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Cecil Moore wrote:
... At 1 MHz, a photon has an energy level of 4x10^-9 eV while a gamma ray photon might have an energy level of 4x10^+9 eV or higher. So, do I get you right here? Like a high power hunting rifle, the energy that the photon is "shot" from the antenna at guarantees a far and straight course of projection (at vhf+ freqs)--as opposed to the lowly bb gun where the bb with low energy is forced to fall to the forces of gravity (on in the photons case, the earths magnetosphere) and come to earth much sooner? JS -- http://assemblywizard.tekcities.com |
#2
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John Smith I wrote:
Cecil Moore wrote: ... At 1 MHz, a photon has an energy level of 4x10^-9 eV while a gamma ray photon might have an energy level of 4x10^+9 eV or higher. So, do I get you right here? Like a high power hunting rifle, the energy that the photon is "shot" from the antenna at guarantees a far and straight course of projection (at vhf+ freqs)--as opposed to the lowly bb gun where the bb with low energy is forced to fall to the forces of gravity (on in the photons case, the earths magnetosphere) and come to earth much sooner? JS The above is meant to be a bit "humorous", but you are stating HF is much more prone to obey magnetic forces in the magnetosphere as opposed to high freqs where photons are endowed with much more "kinetic energy" in the form of the voltage(E) charge they have? Since the law of conservation of energy exists, I am assuming you consider some relationship of E/I to have changed in the VHF photon as opposed to the HF photon--since there is no way for the 5 watts HF to have different power levels than 5 watts VHF? JS -- http://assemblywizard.tekcities.com |
#3
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John Smith I wrote:
Since the law of conservation of energy exists, I am assuming you consider some relationship of E/I to have changed in the VHF photon as opposed to the HF photon--since there is no way for the 5 watts HF to have different power levels than 5 watts VHF? Five joules of HF (10 MHz) requires ten times as many photons as five joules of VHF (100 MHz). What HF photons lack in energy, they make up for in quantity. I get ~7.553x10^28 photons in 5 joules of 10 MHz RF energy and ~7.553x10^27 photons in 5 joules of 100 MHz RF energy. The E-field/B-field ratio is the same for both in free space. -- 73, Cecil http://www.w5dxp.com |
#4
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Cecil Moore wrote:
... Five joules of HF (10 MHz) requires ten times as many photons as five joules of VHF (100 MHz). What HF photons lack in energy, they make up for in quantity. ... Like I said, my original post in response to you was just "a joke", of course the velocity of all photons is assumed constant. However, the fact we fire a shotguy (HF) or a single bullet (VHF) makes the photons in HF assume different charastistics than that of the fewer photons of VHF? I mean, I may be rather dense here, but I am attempting to put the model you are presenting here together--obviously, I am missing something ... Regards, JS -- http://assemblywizard.tekcities.com |
#5
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John Smith I wrote:
... However, the fact we fire a shotguy (HF) or a single bullet (VHF) makes ... Of course, in the above, "shotguy" = shotgun! JS -- http://assemblywizard.tekcities.com |
#6
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John Smith I wrote:
--obviously, I am missing something ... Maybe cause and effect? Cause and effect is indeed missing in a lot of QED stuff. Not only do some virtual particles move faster than the speed of light but also apparently necessarily jump backwards in time. -- 73, Cecil http://www.w5dxp.com |
#7
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On Sat, 10 Mar 2007 11:34:36 -0600, Cecil Moore
wrote: Maybe cause and effect? Cause and effect is indeed missing in a lot of QED stuff. Not only do some virtual particles move faster than the speed of light but also apparently necessarily jump backwards in time. So-called Feynman diagrams represent antimatter particles (positrons, anti-quarks, etc) as the corresponding "matter" particles going backward in time. Of course no physicist actually takes this interpretation seriously. Nor do I believe particle theorists take virtual particles seriously. They are just a convenient representation of the terms in a perturbation expansion. It is unclear to me that virtual particles play a role in non-perturbative theories. --John |
#8
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John E. Davis wrote:
It is unclear to me that virtual particles play a role in non-perturbative theories. How about the static magnetic field from a permanent magnet? -- 73, Cecil http://www.w5dxp.com |
#9
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John Smith I wrote:
Like a high power hunting rifle, the energy that the photon is "shot" from the antenna at guarantees a far and straight course of projection (at vhf+ freqs)--as opposed to the lowly bb gun where the bb with low energy is forced to fall to the forces of gravity (on in the photons case, the earths magnetosphere) and come to earth much sooner? Not exactly. All photons, regardless of energy content, travel at the speed of light (modified by VF, of course). Your above example assumes most of the difference in energy level is associated with the square of different velocities. -- 73, Cecil http://www.w5dxp.com |
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