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Gentlemen of physical science.
This article is posted with a request for reviews prior to activating it on the website. All comments, corrections and alternate views are welcome. Reviews may be posted on this group or emailed. Reviews will not be posted on the web site or news groups without the reviewing author's prior permission. The links for the graphs are listed below and the graphs are currently available on the website. Io's period change graphs via Excel spreadsheet. Earth retreating from Jupiter http://home.netcom.com/~sbyers11/IoAppro.gif Earth approaching Jupiter http://home.netcom.com/~sbyers11/IoEcipChange4.gif This entire article is available on the website, but it is not yet interconnected with the other web pages. Newsgroup readers may review the complete article at the link http://home.netcom.com/~sbyers11/litespd_vs_sr.htm Shortly after the reviews have been received this content will be incorporated with the other pages on the site. Thanks in advance, Cheers Stan Byers Fremont, California Abstract This paper reviews the available speed of light (C) measurements that demonstrate speed variations of inter-planetary light as measured relative to the motion:...of planets, satellites, the solar system, and the Milky Way galaxy. The idea that light from a remote source maintains a constant speed (C) relative to all observers regardless of their differing speeds and directions, as proposed by the theory of Special Relativity, is shown to be incompatible with the characteristics of light's speed demonstrated by the data, analysis and charts of Io's eclipse timing. This paper is an extension of the work available at the web page "Radiant Pressure Model of Remote Force" . A review of the section titled "The Variable Speed of Light" may aid in perusing this article. Table of Contents Light Speed Light Speed vs Special Relativity Abstract Light's Variable Speed Special Relativity Advocates Io's Eclipse Delays Roemer's 1003 Second Delay Delay versus Transverse Motion Charts of Io's Delays Light's Moving Medium via Prime Force Radiation Summary of Light's Characteristics Light's Variable Speed Relative to Observers in Motion In our experience with the speed of sound in air and the Doppler effect we have found that the speed of sound through the air is independent of the relative speed between source and receiver. The speed of sound is constant only in relation to the homogenous medium, through which it is traveling. Sound travels as a longitudinal resonance within the physical properties of it's medium. Circa 1676 Olaf Roemer's Io eclipse timing measurements demonstrated that the speed of light is not infinite. Prior to this discovery it was a popular belief that light's speed was infinite. Using the eclipse period timing of Jupiter's moon Io, Roemer found that light took approximately 1000 seconds to cross the 300 million kilometer diameter of the earth's orbit, indicating a speed of about 300,000 Km/sec. Thereafter it was assumed that interplanetary light traveled at C through a medium of infinitesimal material particles and this all pervading medium was called the Aether (ether). The speed of light was assumed to be constant in relation to this material Aether of space, in the same manner that sound speed is constant relative to it's medium. This material Aether was visualized as pervading all planets and objects and space. Therefore it was assumed that due to the orbital speed of the Earth, that light from space would show a measurable change in speed depending on the direction of the Earth's motion through this presumed stationary material "Aether". It also seemed reasonable that the light speed perpendicular to the direction of the Earth's motion would always remain at C, ( 300,000 Km/sec ). In ~1887 Michelson and Morley performed a famous experiment comparing the speed of local light in the direction of Earth's velocity to the speed of light transverse to the Earth's motion. They found that the motion of the Earth had no effect on the velocity of local light,...relative to the Earth and within its cloak of atmosphere and secondary radiation. The surprising results of this local experiment were generally extrapolated to believe that all of light, including light from non local sources in space, also traveled at the constant C, "relative to the observing location". In parallel with this development the theory of Special Relativity was published circa 1905 with main tenets that included the concept that not only local light, but that all of light in space,... traveled at C,..." in relation to the observer",...regardless of the observers velocity. Special Relativity Advocates A quote from Matthew Chalmers' article in Physics World January 2005, "Five Papers That Shook The World" , provides another view of this Special Relativity theory. Quote: True to style, Einstein swept away the concept of the ether (which in any case had not been detected experimentally) in one audacious step. He postulated that no matter how fast you are moving, light will always appear to travel at the same velocity:-- the speed of light is a fundamental constant of nature that cannot be exceeded. Combined with the requirement that the laws of physics are identical in all "inertial" (i.e. non-accelerating) frames, Einstein built a completely new theory of motion that revealed Newtonian mechanics to be an approximation that only holds at low, everyday speeds. The theory later became known as the special theory of relativity, - special because it applies only to non-accelerating frames - and led to the realization that space and time are intimately linked to one another. Unquote The following quote from Steven Hawking's famous book "A Brief History of Time", page 20, provides another description of the concepts contained in Einstein's Special Theory of Relativity. Quote: The fundamental postulate of the theory of relativity, as it was called, was that the laws of science should be the same for all freely moving observers, no matter what their speed. This was true for Newton's laws of motion, but now the idea was extended to include Maxwell's theory and the speed of light:...all observers should measure the same speed of light, no matter how fast they are moving. Unquote Britannica's web site provides the following quote about Special Relativity Quote Since he (Einstein) believed in (and experiment confirmed) the (extended) principle of relativity, which meant that one cannot, by any means, including the use of light waves, distinguish between two inertial frames in uniform relative motion, Einstein chose to give up the Galilean transformations and replaced them with the Lorentz Transformations. Unquote The article containing this above quote may still be available at this URL link. www.britannica.com/eb/article?tocId=9048966 The Physics FAQ found on the web provides another view listed as "Special Relativity" Quote It is a basic postulate of the theory of relativity that the speed of light is constant. This can be broken down into two parts: The speed of light is independent of the motion of the observer. The speed of light does not vary with time or place. To state that the speed of light is independent of the velocity of the observer is very counterintuitive. Some people even refuse to accept this as a logically consistent possibility, but in 1905 Einstein was able to show that it is perfectly consistent if you are prepared to give up assumptions about the absolute nature of space and time. Unquote The link for this above quote is http://math.ucr.edu/home/baez/physics/ The Stanford Linear Accelerator Center's web site http://www.slac.stanford.edu provides an educational page http://www2.slac.stanford.edu/vvc/th...elativity.html giving the following opinions regarding Special Relativity. Quote Theoretical Basis for Special Relativity Einstein's theory of special relativity results from two statements -- the two basic postulates of special relativity: The speed of light is the same for all observers, no matter what their relative speeds. The laws of physics are the same in any inertial (that is, non-accelerated) frame of reference. This means that the laws of physics observed by a hypothetical observer traveling with a relativistic particle must be the same as those observed by an observer who is stationary in the laboratory. Given these two statements, Einstein showed how definitions of momentum and energy must be refined and how quantities such as length and time must change from one observer to another in order to get consistent results for physical quantities such as particle half-life. To decide whether his postulates are a correct theory of nature, physicists test whether the predictions of Einstein's theory match observations. Indeed many such tests have been made -- and the answers Einstein gave are right every time! Unquote The book, Princeton Guide to Advanced Physics, publishes another view as: The Postulates of Special Relativity, pg 169. Quote All observers, even when in uniform relative motion, will find the same value c for the speed of light in empty space. Unquote The level of detail used in this review may seem excessive to readers familiar with this issue, but the list of quotes included above is just a small sample demonstrating the popularity of the Special Relativity theory. Notice of the existence of Universities or Government Science institutions that propose concepts refuting the above interpretations of Special Relativity will be appreciated. It is intended here to provide enough detail, data and transparency to allow those with opposing opinions to easily use this same material from the Earth/Jupiter/Io scenario to demonstrate with specificity the logic of : ~ Einstein's SR postulate,...Quote "There exists a coordinate system with respect to which every light ray propagates in vacuum with the velocity C". Unquote,.....from Einstein's 1912 SR manuscript. ~ Their reconciliation of the SR postulate with the opposite conclusions indicated by this data. ~ The changes necessary in this accounting that will bring this data into agreement with SR. In the vast world wide web and publications there may be articles that interpret Einstein's Special Relative theory in a manner that provides agreement with Roemer's data. Limited searches by this author have not revealed such information. A notice of links to such information will be appreciated. Io's Eclipse Delays An analysis of light's speed in relation to the motion of Earth is given here by reviewing Roemer's discovery and charting Io's eclipse data available from Astronomy On Line's web site. Olaf Roemer's measurements of 1676 AD demonstrated a finite value for the speed of light through interplanetary space. Roemer noticed that the eclipse event timing for Jupiter's moon Io was delayed approximately 1000 seconds when the Earth was at it's farthest point from Jupiter in comparison to the event timing measured at the closest point in Earth's orbit. With the current knowledge of the diameter of Earth's orbit at approximately 300 million Km, Roemer's delay of 1003 sec. indicates that light travels through space in relation to Jupiter at a speed of 299,103 Km per second (C). During Earth's orbital trip from the point nearest to Jupiter (opposition), to the farthest point (conjunction), the moon Io completes 113 eclipse cycles as timed at the near point. If this is an exact calculation then the last eclipse event image, number 113 is crossing the near point when the Earth is at the mathematical far point. This last event will not be observed in the vicinity of the far point (conjunction) for another 1003 seconds (16.7 minutes). Many books and reviewers of this phenomenon list the time for Earth's journey from the near point to the far point as 200 days and equate this to 113 Io eclipse event periods as observed at the near point. NASA's JPL Labs provides data listing a mathematical time period of 152,853.5 seconds (~1.77 days) for Io's sidereal revolution. Io's eclipse revolution time is 152,915.9 seconds , which is 62.4 seconds longer than the sidereal revolution time, due to the relative motion of the Sun line. Roemer's 1003 Second Delay In order to clarify the issues of this argument we will linearize the arithmetic by assuming to take a spacecraft trip from Earth at the near point, following the diameter to the future far point. This constant longitudinal speed will be set to equal the Earth's average longitudinal speed when retreating in relation to Jupiter. In this scenario the spacecraft will rendezvous with the Earth at the far point after 113 periods elapse (~200 days) plus the 1003 second delay. The 113th event and the spacecraft will arrive at the far point with Roemer's famous 1003 second delay. The longitudinal distance traveled relative to Jupiter is the diameter of the Earth's orbit, ...~300 million Km. Therefore Earth's retreating longitudinal trip of 300 million Km in 113 orbit periods (~200 days), requires an average speed of 17.36 Km per second in relation to Jupiter. The Earth only moves in it's orbit approximately one hundredth of a degree during the 1003 second delay. Therefore assuming that the far point and the intercept point for the 113 eclipse event are the same does not introduce any significant error. Since the diameter distance of 300 million Km is evenly divided by the constant speed of the spacecraft , the distance from the start ( near point) to the point for the first observed eclipse event will be the total distance, divided by the number of Io eclipse periods, 113. This places the point of observation, for the first eclipse observed by the spacecraft in motion,...at 2.6549 million Km from the near point. The time accounting tells us that if there are 113 Io eclipse orbits during this trip, and the last eclipse event is observed and measured to be 1003 seconds later than predicted,...therefore at the half way point in distance for the linear trip the delay must have been about 501.5 seconds. Continuing with this accounting, the first observed eclipse after leaving the near point on the linear trip, must have exhibited a delay of 8.876 seconds. This is obtained by dividing the total delay of 1003 seconds by the total 113 eclipse observations. When a light beam is interrupted by a toothed wheel, it is never assumed that the dark sections do not travel at the same speed as the light. In fact many light speed experiments use this obvious physical phenomenon to measure the speed of light. With the same reasoning it appears obvious that images transported by a light beam have to travel at the same speed as the light beam. Movie projectors provide examples of the application of this physical phenomenon. When this reasoning is applied to the images of Io's eclipse events, it does not seem possible to question the fact that the event images travel at the same speed as their constituent light. If there is a Doppler effect for the frequency of the light, there will also have to be a Doppler effect for events or digital information, ..and visa versa. It is necessary that this mutual relationship, between these two Doppler phenomena,...is clear to the reader for understanding the main argument of this paper. Now if the spacecraft leaves Earth at the near point and at the observation of an eclipse event, then the time to the next observed eclipse event will be 8.876 seconds longer than a stationary period, as calculated above. The near point and Jupiter have no relative velocity, therefore the train of light imaging Io's eclipse events is traveling at C in relation to Jupiter, the near point and the first rendezvous point. When the next eclipse event passes the near point with the speed of C, it will continue toward the rendezvous with the spacecraft, and it will take light 8.876 seconds to cover the 2.6549 million Km to reach the first rendezvous point. This, of course, is the reason for the delay observed by the spacecraft in motion. Since the light speed, C, in relation to Jupiter is 299,103 Km/s , and the spacecraft speed in relation to Jupiter is 17.361 Km/sec,...this results in an average reduced relative speed of 299,085.6 Km/sec. between the eclipse event image motion and the spacecraft motion. If the speed of the train of light and events from Jupiter was not reduced in relation to the retreating Earth, succeeding observations of eclipse events would remain in synchronism with the observations of the near point. How could a station 2.6549 million miles further from Jupiter observe an eclipse event at the same time that it is observed at the near point? The only way there could exist an absence of an observed delay during motion,...would be if the light speed was infinite. There would be no delays during the 200 day retreating movement, and the accumulation of 113 individual delays to equal the total 1003 second delay would not occur. Therefore there would not be a 1003 second delay to be manifested at the far point. Since Roemer's 1003 second delay of 1676 AD exists,... and is still measurable today,... it is demonstrating that light from Jupiter exhibits a reduced speed in relation to the retreating motion of Earth. On Earth's return trip a proportionately higher relative light speed will be exhibited as Earth approaches Jupiter. Upon returning to the near point,... Io's observed events will again be in phase synchronism with the previous eclipse events at the near point. With the light and the space craft racing to the same point at their different speeds,...how is it possible to subscribe to the concept of Special Relativity (SR) that states that the relative light speed does not decrease with changing motion. Furthermore, on Earth's return trip the relative speed will be greater than the upper limit and the constant speed of light as postulated by SR. Delay versus Transverse Motion. There exists an argument that attributes the period changes which occur during Earth's orbit to the changing line of sight angle for viewing the eclipse events. If this argument were true the maximum changes in the length of the observed period would occur during the orbital positions when the Earth's motion is transverse to the line of sight to Jupiter. The following graphs plot the changing delay time from actual eclipse data recorded for a retreating and approaching orbital trip. It is seen from the following graphs that the maximum changes in the length of the observed period occur during the orbital positions that provide the highest relative longitudinal velocity between the two planets. When the Earth is nearest to Jupiter during Earth's orbital trip,... Earth's motion is transverse to the line of sight to Jupiter. At this point of Earth's orbital travel, it is observed that the orbital period of Jupiter's moon Io is essentially the same as the JPL's published eclipse revolution period of 152,915.9758 seconds. Since there is no relative longitudinal motion between the two planets at this near point in Earth's orbit, the speed of the eclipse light train periods is taken to be 300,000 Km/sec, C, in relation to both planets. If the Earth could remain at this nearest point for a few orbits of Io it would be found that each succeeding eclipse event would occur with the same predictable period. As the Earth continues in it's orbit and leaves this point nearest to Jupiter there arises an increasing longitudinal velocity between the two planets. As the light train speed is reduced relative to the retreating Earth, and remains at C in relation to Jupiter, there will be a measurable increasing delay in the events as observed from Earth. The following graphs display the changes in event timing (changing period) in relation to the changing longitudinal velocity as the Earth retreats from and approaches toward Jupiter. When the Earth retreats from Jupiter the relative longitudinal speed increases to it's maximum which is approximately the orbital speed of Earth (29.79 Km/sec). This maximum occurs when Earth has traveled through approximately one quarter of it's orbit. Since this velocity is nearly one hundredth of one percent (1 X 10^-4) of the speed light,...the light train traveling past the moving Earth will appear slower by this same percentage. Since the relative light speed is slower it follows that the apparent time period between eclipse events will necessarily be longer by the same percentage. Taking one hundredth of one percent of the eclipse period of 152,916 seconds gives the period a maximum elongation of 15.29 seconds. The charts of eclipse period elongations and reductions are given below. These charts were derived from the eclipse event observation records provided on the web by Astronomy On-Line at the URL http://www.eso.org/outreach/spec-pro...skills302.html When this Earth/Jupiter/Io scenario is analyzed with the concept of Special Relativity in mind, it is obvious that the light train leaving Jupiter does not arrive at a retreating Earth with a constant speed of C in relation to Earth. However once a light beam from Jupiter enters the Earth's cloak of atmosphere and secondary radiation,... it's locally measured speed between two points becomes C in relation to Earth. This has no influence on the Doppler frequency changes and the Doppler period changes which are caused by the relative speed changes due to Earth's orbital velocity referenced to Jupiter and the eclipse light train. If our atmosphere exhibited a light speed radically different then C, Roemer's delay would still be evident. Io's period change graphs via Excel spreadsheet. Earth retreating from Jupiter http://home.netcom.com/~sbyers11/IoAppro.gif Earth approaching Jupiter http://home.netcom.com/~sbyers11/IoEcipChange4.gif When reviewing these charts it must be recognized that only the shape of the curve is needed to demonstrate the main point:...the maximum timing change occurs during Earths maximum longitudinal speed in relation to Jupiter. These charts are generated by producing a moving average of an incomplete set of eclipse events. A complete record of a set of 113 eclipse events is not available. The moving average is obtained with the trend line sub-program available in the MS Excel spreadsheet program. The chart lines would not be offset and would intercept the zero second delay line at the near and far points, except for the absence of data points and the averaging characteristic of the sub-program. The absolute values shown on the changing delay chart should not be used for precise representations of the actual delays corresponding to Earth's actual orbital positions. The data points were not recorded to the second, so this necessitated the use of a moving average plot to obtain the actual trend. The data sets used from Astronomy On Line were checked against the scattered data points available from the Galilean Satellite Eclipse Timing Data. The citation for this data is "Galilean Satellite Eclipse Timing Data by A. Mallama, P. Nelson, J. Park, D. Collins, and B. Krobusek, 2003, http://www.amsmeteors.org/mallama/galilean/timings.html No discrepancies were found between the two data sources. Citations and links to the supporting data sources have been included in order to encourage and aid other researchers to replicate this article. If any researchers wish to obtain the Excel files containing the data and charts used to produce this article, please email a request to . . All reviews, alternate views, and comments are welcome. Approximately 100 years have passed since the theory of Special Relativity (SR) appeared in 1905. The SR postulate that the velocity of light is constant in all inertial systems implied the necessity to revise the ideas of length, time and simultaneity. The data provided here indicates that this postulate is not compatible with the actual characteristics of light. This empirical data demonstrates that the speed of emitted light is isotropic and at C in relation to the source, and the observed light speed will be modified depending on the relative motion of the observer and the source. Newton's, Faraday's and Maxwell's concepts of physical systems, length, time, simultaneity, radiation and energy remain unchanged when the system of light (EM) transportation is recognized to function as the above data demonstrates. Light's Moving Medium via Prime Force Radiation. In reviewing the data demonstrating that emitted light is isotropic from a moving source, it becomes necessary to propose a medium that moves with the source. This requirement eliminates the possibility of a material medium consisting of ultra mundane particles. The non EM Prime Force background radiation (Pf) as described in the article "Radiant Pressure Model of Remote Force" provides the transport medium for inertia and light. EM radiation, including light, is propagated as a resonance within the non EM Prime Force radiation. Our total Solar system has a motion referenced to sidereal space (star background) due to the rotation with the Milky Way. Due to the different Solar system orbits speeds of Earth and Jupiter, there will be times when Jupiter leads Earth and times when Earth leads Jupiter relative to the direction of our sidereal motion. In spite of our system's Milky Way sidereal motion,... the light from Jupiter remains at C in relation to Jupiter. If this were not so we would measure different speeds for light depending on the line of sight orientation with the Milky Way motion. Consequently the light emanating from a non accelerating source object is at C, and isotropic in relation to the source,...regardless of the speed and direction of the source in relation to other systems. A second example of this isotropic velocity phenomenon is the Earth Moon system. Whether the Moon is leading or trailing the Earth in it's orbit, the same velocity of Earth shine light will exist arriving at the Moon. This fact disputes the intuitive and SR concept that light must travel through a medium and have a constant speed relative to this medium. It appears that for light to exist as a phenomenon of a background medium, each planet and Sun must have a medium that moves with it. This appears like an impossibility for a material medium,... however it is a reasonable concept for a Prime Force (Pf) radiation medium with a broad frequency spectrum. Summary of Light's Characteristics In summary, this review of available data demonstrates that these characteristics for light exist when it is acknowledged that the Doppler effect for light cannot be independent of the Doppler effect for the event images which are propagated with the light. ~ Light speed is isotropic and at C only relative to it's non-accelerating source. ~ There is no known speed limit for light relative to space or remote objects. These characteristics are in direct opposition to the apparent concept from Einstein's 1912 manuscript for Special Relativity: Quote "There exists a coordinate system with respect to which every light ray propagates in vacuum with the velocity C". Unquote. The use of the universally recognized term "Inertial Space" demonstrates that we already accept the fact that the medium which supports inertial force is present, regardless of an objects speed or direction in relation to sidereal space and Newton's inertial space. A review of this web site's section on inertia may lead to a better understanding of how this model demonstrates the unity of matter and Prime Force radiation (Pf), and how it allows light to exhibit a constant speed in relation to it's source. *** |
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