Hark back to the old topic - the speed of light
Key words: the speed of light, magnetic conductivity, dielectric constant, time, space, inertial system author: Wu Xingguang（中国吴兴广）
The speed of light, including: 1, related to vacuum magnetic permeability and dielectric constant, the change of electromagnetic field the speed of the change of the electromagnetic field around space to C; 2, the spread of light in a vacuum or medium, every change there is no displacement of the electromagnetic field. Every change of the speed of the electromagnetic field is zero. If every change of electromagnetic field in the space velocity, then there will be this time is the speed of light travels at a speed of C with every change of velocity vector and the electromagnetic field. The speed of light by the speed of light propagation C together with every change of electromagnetic field the speed of the decision.
Field has the nature of relative movement
Material field, such as electronic produce electric field, magnetic fields, with the movement of electrons or magnet movement. Another situation is electronics, magnet or movement that electric field magnetic field movement, rest, the frame of reference movement, then look in the frame of reference, electric field magnetic field is movement. We call the above two kinds of sports are relative motion, because whether the electromagnetic field exercise, or frame of reference movement, we say that the electromagnetic field of exercise is the movement of the reference frame and electromagnetic field is poor, not the motion of an object, is associated with the movement of two objects. So out of the field of material, whether passive field have relative motion? Passive field such as light waves on the electromagnetic field. Whether light on the changes of the electromagnetic field have relative motion? I think the change of electromagnetic field in space motion, has the relative motion. This is according to the facts, the following is said.
In this way, the movement of light is divided into two kinds, : 1, the transmission of light waves; 2, the change of electromagnetic field movement.
2 changes in the movement of the electromagnetic field in electromagnetic field can be itself in the movement of the space, also can be a reference frame of the movement, in the frame of reference is the movement of the electromagnetic field. Due to the frame of reference description of space frame of reference is the fixed point in space, the space and the frame of reference static space motion to say each other, then look in the frame of reference is electromagnetic field in the frame of reference description of motion in the space. 1 light wave or movement, is the speed of light C, decided by the magnetic permeability and dielectric constant. We should distinguish between these two kinds of sports. Frame of reference or the movement of the observer can change the movement of the electromagnetic field, the changes between electromagnetic field and the frame of reference or observer sport changed, changed from static to sports, from the speed to the speed, but the frame of reference or observer cannot change the velocity of light is the speed of light C.
Then produce a spotlight of the question, when we exercise the spotlight at the speed of light, we see? If the speed of light C as 2 change the movement of the electromagnetic field, so we will get to see swings back electromagnetic fields at this time. In fact, this conclusion is wrong. Because, don't see is observer swings back emf. Electromagnetic field is in itself volatile's faltering, wave velocity is just the movement of the waveform, the wave on the electromagnetic field does not move forward. When we at the speed of light sports spotlight, see is a static electromagnetic field in the space, constant electromagnetic field, at the same time, the speed of light in the opposite direction C movement, constant light around constantly, different electromagnetic field. Away from the light source (for example, the observer, between light source and the observer's light.)
Light movement including the movement of light wave and electromagnetic field changes, the speed of light is the speed of light C and electromagnetic speed or speed.
Since the maxwell predicted the electromagnetic nature of light and the speed of electromagnetic field, a physicist at thinking, which one the speed is relative to the reference frame say? There is a special frame of reference? Isn't. So the speed of light C relative to who said that?
Binary phenomenon shows that the movement of light has no effect on the speed of light. This is because the light source, medium without movement, change of electromagnetic field with no light together. In the observer, it seems, electromagnetic field do not move forward (hereafter referred to as "the fixed electromagnetic field), the speed of light is C to the velocity of light. So we conclude that the source of the movement has no effect on the speed of light. The movement of light has no effect on the speed of light, this sentence is relative to the observer says, so for the light source? In observers as a wavelength of the wave, in the light source, light source and light source description of space is still mutually, light from light source, so a shorter wavelength, according to the amount of total time are all moving objects that is T = s1 / v1 = s2 / v2 = s3 / v3 = s4 / v4 =... , it is concluded that cycle is constant, according to the wave velocity V = lambda/T wave velocity of the change. Light movement, in the direction of the light wave propagation speed of light for light source. The speed of light relative Yu Guangyuan of wave speed with the speed of electromagnetic field movement speed. Shorter wavelength, it is because 1 (to light) electromagnetic field toward a light source, 2, and the movement of the electromagnetic field has no effect on the speed of light C, the speed of light is C, 1 and 2 of sports is the shorter wavelength of the wave velocity decreases. At this time of the wave velocity is the speed.
Here the electromagnetic field does not affect the movement of light wave velocity C.
In aberration phenomenon, the speed of light C remains unchanged, due to the motion of the earth, the earth seems to be electromagnetic fields to the earth movement, so the time of exercise is the transmission of light with the light on the electromagnetic field to earth movement or movement, in the earth's view, the light is not vertical but to oblique. Here, the relative motion of the electromagnetic field has no effect on the speed of light C.
Pei rope experiment, medium movement, the change of the speed of light. In the observer, it seems, light propagation in the movement of the medium, the electromagnetic field on the light in the space motion, the movement of the electromagnetic field and wave motion of movement caused the change of the speed of light, where observers as the speed of light.
If the light is in line with the principle of relativity, the light speed in different inertial system, thus it is concluded that the movement of the medium has no effect on the speed of light, light in motion in the medium of communication, light on the change of electromagnetic field with the medium, a static, between the two is the movement of the medium is completely on the led light change of electromagnetic field movement. At this point, the change of the movement of the electromagnetic field has no effect on the speed of light C. So pei experiments, the movement of the medium should be completely on the led light change of electromagnetic field movement.
The speed of light C is determined by magnetic conductivity and dielectric constant, so the speed of light C relative to who say? Through the above, we know the speed of light C is relative to the change of the electromagnetic field. Waves are relatively light on the change of the speed of the electromagnetic field is always C, has nothing to do with whether the electromagnetic field of movement, has nothing to do with changes the speed of the electromagnetic field. Speed of light is the speed of light C remain unchanged, but the variable.
Law of mechanics are the same in any inertial system, the same law of electromagnetism, maxwell's equations, for example, the coulomb force, are the same in any inertial system.
In a different frame of reference observation, the movement of objects may be different, for example in a frame of reference object is static, to see in another frame of reference, it could be in motion, in different reference frame their movement speed and direction can be different; Also, the speed of light in different inertial system is the same, but in an inertial system to another frame of reference light for the spread of the resultant velocity may be changing.
Reference: 1 reason of gravity and inertia force equivalent Wu Xingguang 2 "space motion said XiLiu BBS 3" the time of the nature of the origin of the "baidu library 4" relative to the contradiction between quality and mass formula Wu Xingguang 5 "field and the mutual reference of the particles" 6 "movement caused the change of the Planck constant h"
The 2013-8-30 14:14:59
Machine translation is wrong, please see the original in Chinese
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