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Measure the speed of light. At home

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According to the materials of the author’s articles in “TM”, No. 10, 2001, p. 53. and No. 3, 2002, p. 24. In a household fluorescent lamp, the plasma temperature is of the order of tens of thousands of degrees. This corresponds to the movement of charged particles at a speed of about 100 km / s. Photons emitted by ions flying at a speed V must have a speed C + V directed along the axis of the lamp parallel to the film, in accordance with the classical ballistic principle of velocity addition (and not with the SRT formulas). If this is the case, the spot will shift in the direction of movement of the ions emitting light. But if the second postulate of SRT is true, then the shift of the light spot will not occur. The speed of the light source V will not increase to the value of S. The course of the experiment. I use a miniature neon lamp with a glass envelope that is transparent to UV radiation. With a pressure of about 0.1 mm Hg, a distance between the electrodes of 1.7 mm and an operating voltage of 220 V, the inert gas ions are able to acquire a speed comparable to the speed of light C. Light from such a radiator passes through a narrow diaphragm (or pinhole camera) and gets on the screen located parallel to the plane of the emitter electrodes at a distance of 0.8 m. The direction of the current in the lamp can be changed using a diode. After switching on, an image of the lamp appears on the projection screen. Both electrodes and a gas discharge pillar between them are clearly visible. When the current direction changes, the image shifts towards positive ions by 11 mm with an absolute error of 0.2 mm. This means that the speed of light C is added to the speed of movement of its source V according to the classical, “ballistic” principle, and not according to the SRT formulas. One thing is that from a beam of light, outside of spectral analysis, one can calculate the speed of the radiation source, no longer in the spirit of the Theory of Relativity. The exact magnitude of the speed of movement of ions in a neon lamp is difficult to determine. According to indirect estimates, it has an order of 2000 km / s. This is in good agreement with the results of the experiment performed. From this it follows that either the second postulate of the SRT is incorrect, or its physical meaning needs some special explanations.


Used in the experiment light sources. Ultraviolet or the most common lamp 18 watts. Option – a miniature halogen light bulb.


As the saying goes, “Ein Versuch ist kein Versuch” (search-so search), and therefore I put the second experience with a neon lamp, fundamentally changing its conditions. The main element is now a glass prism, differently deflecting the rays of light with different wavelengths. If the speed of light is greater than C, the spectrum shifts to the violet side. If it is less than C, a “red shift” occurs, as when observing a receding radiation source. But, this is not the Hubble effect. I place the neon lamp so that the plane of the electrodes is perpendicular to the pinhole screen. When you turn on the lamp, a light spot appears on the screen. After the polarity is reversed, the beam shifts by 24 angular minutes. Deviation error 4 minutes. Using the known formulas, we calculate that in this case the change in the speed of light is 520 km / s., With an error of 85 km / s.


The scientists from the OPERA group in the Italian Gran Sasso, unlike the author of this article, have the opportunity to conduct truly direct measurements of the velocity of microparticles. Neutrino either does not have a rest mass, like a quantum of light, or it does. Definitely, like a photon, it rushes constantly with speed C. The speed of the source itself does not matter. At least, so considered. Using synchronized detectors, Italian physicists discover the existence of “small neutrons” moving at a speed exceeding C at 7.5 km. with. The possible error is less than such a deviation by three orders of magnitude. The publication will take place in 2011, and causes a flurry of criticism. Experimenters have an awkward excuse. (I suppose the figure is clear and without translation)


In Russia, a direct measurement based on the scheme proposed by the author was made by the masters of academic science. Of course, without reference to articles in the journal “Technology-Youth.” This is evidenced by the publication of Academician RAS E. Aleksandrov in the journal Science and Life, No. 8, 2011. The modest discharge lamp of an amateur is replaced here by a magnificent synchrotron, a cardboard screen and a camera obscura – photo sensors with high-speed oscillographs. So: “… As a pulsed light source, we used a synchrotron radiation source (SR) – the Siberia-1 electron storage ring. The SI of electrons accelerated to relativistic speeds (close to the speed of light) has a wide spectrum from the infrared and visible to the X-ray range. The radiation propagates in a narrow cone tangentially to the trajectory of electrons along the lead channel and is output through the sapphire window into the atmosphere. There the light is collected by a lens on a photocathode of a fast photo detector. A beam of light on the way in vacuum could overlap with a glass plate inserted with a magnetic drive. At the same time, according to the logic of the ballistic hypothesis, the light that had supposedly had doubled speed of 2C, after the window should have acquired the usual speed C”. … Of course, experience shows the speed of light, within the error of 0.5%, equal to the constant C. What is interesting, in the experiment of Russian academics, the question is not even raised to remove light from elementary particles moving in the opposite direction. Corpuscles rotate in the accelerator exclusively counterclockwise, at different speeds. There are no reports that the experiment was carried out with light from particles accelerated by, say, half, three-quarters of the standard speed in the synchrotron. A simple comparison of the results on the screen of a speed oscilloscope would dot all I. Probably, such an adjustment is simply impossible. The only element of the experience here is the glass plate. However, by whom and where does it say that such a deadly screen can align the speed of photons to the standard C?


This is the screen of a two-beam high-speed oscilloscope. Top – U – reference sine wave of particle revolutions inside the synchrotron (voltage, which is one and the same), SI – curve from the Cherenkov radiation sensors. The pulses are triangular in shape. This is the data obtained from the set, the package of particles. Standard values are displayed by burst poppies. Below – the screen after the glass plate gets in the way of radiation. It seems that scientists consciously move away from the question of measuring the speed of light in a direct way. Perhaps glass is an analogue of condensed ether, according to some hypotheses, enveloping the globe and so leveling the speed of light to a known constant. This is all well and interesting, but it has nothing to do with the confirmation of the well-known postulate of SR. If we talk about the disc as a substitute for ether, then, according to the opinion of S. Semikov, the Ritz ballistic theory enthusiast, the scientists of the Siberian academic campus should have used more and more dense screens. Details you can find on his (very informative) site.


If we suddenly find out that the speed of light is added to the speed of the source, saying simply: “What will we have from this?”. The first – the system of high-speed space communications. To Mars, the light (radio signal) is 12 minutes. The same back. Almost half an hour is too much to effectively control the rover or aircraft from Earth. Plasma antennas, emitting radio waves accelerated in the right direction by the particles, reduce the message time almost by half. In addition, studies that are no longer limited by the principle of SRT will surely reveal new, surprising, and demanded qualities of light.

Living science. Naturalist Comics

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