What is your EM crankosity?
in [Relativity]
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From: susan on 21 Sep 2009 21:58 "doug" <xx(a)xx.com> wrote in message news:6YOdnRZat8zwgCXXnZ2dnUVZ_j5i4p2d(a)posted.docknet... > > > susan wrote: > >> "Benj" <bjacoby(a)iwaynet.net> wrote in message >> news:5e383309-0232-4441-9a7e-81e9c752d378(a)f10g2000vbf.googlegroups.com... >> >>>Are you a Maxwell loon? >>>How well do you understand Maxwell's equations? >>>Ten easy questions to measure your kookosity: >>> >>>1. An electromagnetic plane wave in free vacuum consists of a >>>sinusoidal electric >>>field and a sinusoidal magnetic field at right angles to it. These >>>fields are delayed >>>90 degrees from one another such that energy oscillates between them >>>in a >>>manner similar to an LRC circuit where the energy oscillates back and >>>forth >>>between capacitor storage and inductor storage. (true, false?) >> >> >> false - no R component in EM in free vacuum. >> >> >>>2. A magnetic field changing strength in time causes an electric field >>>in space that is >>>capable of producing currents in conductors. The process is called >>>"induction" >>>and is described by Faraday's Law. (true, false?) >> >> >> close, not exact >> >> >>>3. If a conducting circuit that encloses an area under a uniform >>>magnetic field that >>>totally covers the loop is changed in shape to enclose a different >>>amount of >>>magnetic flux, an emf will always be induced in the circuit due to the >>>changed >>>amount of flux. (true, false?) >> >> >> mostly true, as wire crosses lines of flux >> >> >>>4. When instruments measuring E and B (electric and magnetic fields) >>>that are >>>stationary with respect to those fields are placed on a moving >>>reference frame >>>moving with constant velocity with respect to the fields, by >>>relativity, the meters >>>always show the same values regardless of the magnitude of the >>>(constant) >>>velocity of the frame so long as the velocity of the moving frame is >>>much slower >>>than the speed of light. (true, false?) >> >> >> there is an error term. >> >> >>>5. For a point charge moving with a non-relativistic constant velocity >>>(not >>>accelerating) past an observer, the electric field from that charge >>>will be observed >>>to be the same spherical distribution found in electrostatics for a >>>non-moving >>>charge. (true, false) >> >> >> there is an error term >> >> >> >>>6. According to Maxwell's Equations a time-changing electric field as >>>in a charging >>>or discharging capacitor creates a displacement current through that >>>capacitor and >>>that displacement current creates a magnetic field just as if the >>>capacitor were not >>>there and a wire carrying the current was producing the field. (true, >>>false?) >> >> >> how can you discharge a capacitor with it not being there? >> >> >> >>>7. It can be shown that if a line charge segment is moving past you as >>>an observer at >>>some constant velocity, that not only does the apparent length of the >>>segment >>>change to the viewer, but by Lorentz contraction at relativistic >>>speeds the actual >>>length of the line charge segment changes as well. (true, false?) >>> >> >> >> trivial >> >> >>>8. It is well known through experiment and observations that >>>electromagnetic waves >>>as predicted by Maxwell's Equations form a spectrum depending on >>>frequency >>>that runs without other changes from low frequency radio waves, up >>>through >>>microwaves, on up to sub-millimeter waves, thence to Infrared light, >>>then visible >>>light, ultraviolet light and on up into X-rays and cosmic rays. >>>(true. false) >> >> >> >> cosmic rays are various particals, not EM >> >> >>>9. All electromagnetic clocks slow by the same amount as their frame >>>velocity >>>reaches significant relativistic speeds leading to the conclusion that >>>by relativity, a >>>"dilatation" of time takes place that affects all electromagnetic >>>events and even >>>including biological ones. (true , false?) >> >> >> how can one clock effect all time? >> >> >>>10. Electromagnetic waves as described by Maxwell's Equations, >>>propagate through >>>the vacuum of empty space by relationships observed from those >>>equations that a >>>changing electric field creates a magnetic field and a changing >>>magnetic field >>>creates an electric field. These waves are unique in that they do not >>>require a >>>medium to propagate in. (true, false?) >> >> >> trivial, look at the equations. > > Be careful, you are dealing with Benj. He is a crank with > an agenda. He does not know any science but he thinks > he do do clever things. He is also a fool. figured that, looney is mixing subjects in same question, and leaves out key information. note how he deals with my answers, (which are all correct.) Obviously he is not well read, and has a poor grasp of the subject. > >> >> >> >> >>>======================= >>> >>>Hey, Uncle Al, this test's for you! Show us your stuff now so we >>>won't have to call you "idiot"! >> >>
From: Benj on 22 Sep 2009 00:39 On Sep 21, 9:58 pm, "susan" <inva...(a)invalid.com> wrote: [snip moronic non-scientific comments from "Doug"] > figured that, looney is mixing subjects in same question, and leaves out > key information. These are not PROBLEMS, susan. I'm not giving you values to calculate. Whatsamatta? Can't handle two thoughts at the same time? There is all the information you need to answer any of the questions. > note how he deals with my answers, (which are all correct.) > Obviously he is not well read, and has a poor grasp of the subject. Oh My! Now Susan has caught the name-calling virus from "Doug"! Obviously it is you who needs remedial reading. How can your answers all be "correct" when on a true-false test you answer "mostly true"? Quit hanging around with your inferiors (Doug) and start acting like you actually know what you are talking about.
From: Don Kelly on 22 Sep 2009 00:43 -- "susan" <invalid(a)invalid.com> wrote in message news:h9968d$slc$1(a)news.albasani.net... > > "Benj" <bjacoby(a)iwaynet.net> wrote in message > news:5e383309-0232-4441-9a7e-81e9c752d378(a)f10g2000vbf.googlegroups.com... >> Are you a Maxwell loon? >> How well do you understand Maxwell's equations? >> Ten easy questions to measure your kookosity: >> >> 1. An electromagnetic plane wave in free vacuum consists of a >> sinusoidal electric >> field and a sinusoidal magnetic field at right angles to it. These >> fields are delayed >> 90 degrees from one another such that energy oscillates between them >> in a >> manner similar to an LRC circuit where the energy oscillates back and >> forth >> between capacitor storage and inductor storage. (true, false?) > > false - no R component in EM in free vacuum. > >> >> 2. A magnetic field changing strength in time causes an electric field >> in space that is >> capable of producing currents in conductors. The process is called >> "induction" >> and is described by Faraday's Law. (true, false?) > > close, not exact > >> >> 3. If a conducting circuit that encloses an area under a uniform >> magnetic field that >> totally covers the loop is changed in shape to enclose a different >> amount of >> magnetic flux, an emf will always be induced in the circuit due to the >> changed >> amount of flux. (true, false?) > > mostly true, as wire crosses lines of flux > >> >> 4. When instruments measuring E and B (electric and magnetic fields) >> that are >> stationary with respect to those fields are placed on a moving >> reference frame >> moving with constant velocity with respect to the fields, by >> relativity, the meters >> always show the same values regardless of the magnitude of the >> (constant) >> velocity of the frame so long as the velocity of the moving frame is >> much slower >> than the speed of light. (true, false?) > > there is an error term. > >> >> 5. For a point charge moving with a non-relativistic constant velocity >> (not >> accelerating) past an observer, the electric field from that charge >> will be observed >> to be the same spherical distribution found in electrostatics for a >> non-moving >> charge. (true, false) > > there is an error term > > >> >> 6. According to Maxwell's Equations a time-changing electric field as >> in a charging >> or discharging capacitor creates a displacement current through that >> capacitor and >> that displacement current creates a magnetic field just as if the >> capacitor were not >> there and a wire carrying the current was producing the field. (true, >> false?) > > how can you discharge a capacitor with it not being there? > > >> >> 7. It can be shown that if a line charge segment is moving past you as >> an observer at >> some constant velocity, that not only does the apparent length of the >> segment >> change to the viewer, but by Lorentz contraction at relativistic >> speeds the actual >> length of the line charge segment changes as well. (true, false?) >> > > trivial > >> 8. It is well known through experiment and observations that >> electromagnetic waves >> as predicted by Maxwell's Equations form a spectrum depending on >> frequency >> that runs without other changes from low frequency radio waves, up >> through >> microwaves, on up to sub-millimeter waves, thence to Infrared light, >> then visible >> light, ultraviolet light and on up into X-rays and cosmic rays. >> (true. false) > > > cosmic rays are various particals, not EM > >> >> 9. All electromagnetic clocks slow by the same amount as their frame >> velocity >> reaches significant relativistic speeds leading to the conclusion that >> by relativity, a >> "dilatation" of time takes place that affects all electromagnetic >> events and even >> including biological ones. (true , false?) > > how can one clock effect all time? > >> >> 10. Electromagnetic waves as described by Maxwell's Equations, >> propagate through >> the vacuum of empty space by relationships observed from those >> equations that a >> changing electric field creates a magnetic field and a changing >> magnetic field >> creates an electric field. These waves are unique in that they do not >> require a >> medium to propagate in. (true, false?) > > trivial, look at the equations. > ----- Good on you , Susan- you have again shown that you are one sharp cookie. -- Don Kelly dhky(a)shawcross.ca remove the x to reply
From: Benj on 22 Sep 2009 01:51 On Sep 22, 12:43 am, "Don Kelly" <d...(a)shawcross.ca> wrote: > "susan" <inva...(a)invalid.com> wrote in message > > trivial, look at the equations. > ----- > Good on you , Susan- you have again shown that you are one sharp cookie. Hey Don, what are your answers? Unlike Susan, carefully read the questions (words actually have meanings) and answer "true" or "false" for each one. Good luck! Waddya think? Is Susan saying the answer to # 10. is "Trivial true" or "Trivial false"? Saying that the answer to something is easy, is not the same as actually giving an answer. And it's the same non-answer she gave for # 7.
From: Benj on 22 Sep 2009 16:25
On Sep 22, 12:28 pm, doug <x...(a)xx.com> wrote: > Benj wrote: > > You are worse than a fool. You are a politician! > > This is what passes for a scientific argument from benj. Yawn. Same old. Still waiting for YOUR "expert" "educated" "Intelligent" answers to the questions, "Doug"! <Benj picks his teeth> |