Under Linn's explanation, the great wizards present continued to discuss.
If you follow this argument, then the theory of constant speed of light does have some truth.
"Wait!" Dennis suddenly noticed a loophole and asked in confusion. "Speaker Linn, if this is said, then the principle of constant speed of light should have a premise. The speed of light must be detected in an inertial reference frame to be a fixed value!"
If it is in a non-inertial reference frame in motion, the situation will be different!
Probably because he felt that the expression alone was not appropriate enough, Dennis waved and used [Mage's Hand] to bring over a large experimental vessel, filled it with water, and then threw a float on the water and tapped it.
Under the gaze of everyone, waves rippled on the calm water.
Water waves and sound waves are both mechanical waves, and their propagation principles are naturally the same. Dennis is going to use water waves as an example to point out the loophole in the constant speed of light.
"Now let's assume that this finger is a swimming person!" Dennis once again put an index finger into the water, and then faced the direction of the water waves, gradually approaching the position of the float. If he is used as a reference at this moment, then Doesn't the speed of the water waves flying towards it become faster? "
Naturally, a person moving in the water cannot be used as an inertial reference frame, but Linn's theory of relativity does not have this premise. He says that the speed of light is eternal in any reference frame. This is obviously illogical!
"If light is just a mechanical wave, then it is true, but unfortunately its special properties determine that light is not the same as other waves." Lin En looked at the confused people and explained. "Don't forget that the propagation of light does not require a specific medium, it can even propagate in a vacuum!"
Dennis and others frowned. This is indeed the biggest difference between light and other waves.
"Is it possible that we haven't detected the light medium yet?" Steger couldn't help but interrupted.
"I have already tried this experimentally. Unfortunately, this so-called medium does not exist!" Lin En shook his head, and then showed everyone the beam deflection measurement cantilever he made.
This is actually a modified version of the Michelson-Morley experiment. He placed a beam emitter on one end of the cantilever. When the switch is turned on, a beam of light will fly out and be split into two beams by the spectroscope in the middle of the cantilever. to two different directions, and finally reflected to the detection instrument by the reflector at the end of the cantilever.
They must know that the planet beneath their feet is rotating around the sun at a super high speed of thirty kilometers per second.
Assuming that there really is a medium of light in the universe, whether it is stationary or moving at a constant speed, it cannot keep pace with the eternal star rotating around the sun.
It's like the float that caused the water wave has moved. If you test it again at this time, you will find that the distance between the float and the water wave in front has become closer, and the distance from the water wave in the rear has become farther.
Although the speed of light is extremely fast, the orbiting speed of the Eternal Star can only reach one ten thousandth of the speed of light, and the deviation caused is minimal. However, for a wizard with atomic-level sensing accuracy, it is enough to detect these slight changes. !
"Unfortunately, I have done many inspections. No matter which direction the light beam returns from, the position of the stripes hitting the inspection instrument will not change at all! This is enough to show that the medium of light does not exist, which means There is no fixed medium as a reference..." Linn shook his head and said.
"If light does not have a medium, why would its speed be a certain value?" Steger said in great confusion.
Dennis and others are also extremely curious about this. Why the propagation speed of sound waves and water waves is determined because they propagate in the medium.
To give an inappropriate analogy, this is like ten thousand people standing in a row. The first person slaps the second person, and the second person slaps the third person. This is passed on, so the force is transmitted. The speeds are equal.
If there is no medium, the speed of light should be fast or slow.
Just as Lin En was about to answer, a voice rang out first.
"That's because light is an electromagnetic wave, and the propagation rate of electromagnetic waves in vacuum is only related to the vacuum dielectric constant and vacuum permeability!"
At the same time as the words rang out, the four speakers, Anthony, Harrov, Aurora and Vittorio, walked in from the door.
And the person who just responded was none other than Anthony!
Steger and other great wizards all turned their heads and looked over. While saying hello, they looked at Anthony with envy and jealousy. A few months ago, he was just a great wizard like them. A wizard, but now he has become a legendary wizard and the speaker of the Wizards Council.
Only Jeffrey's eyes showed no jealousy, but rather a bit of admiration. He was able to successfully complete the legendary promotion ceremony while understanding all the strange phenomena of microscopic particles, which made him feel ashamed.
Anthony ignored these glances, looked at Linn and continued to speak. "The reason why I was able to discover that light is a type of electromagnetic wave was based on the derivation of Speaker Lynn's electromagnetic equations!"
However, in Lynn's equations describing electromagnetic waves, the speed of the oscillating electric and magnetic fields is only related to two directionless scalars, vacuum permittivity and vacuum permeability.
At first, he even doubted whether this was an oversight by Lin En. After all, any speed must have a reference. Just like the example Lin En gave at the beginning, the silver coin he launched could be It is said to be fifty meters per second, or it can be said to be thirty kilometers per second, but the reference objects are different.
Unless, as stated in the theory of relativity, the speed of light is the same for any reference object!
"Not bad!" Linn nodded. "You can understand the dielectric constant and magnetic permeability as the 'resistance' of space to the electromagnetic field!"
"Space resistance?" Steger and others were thinking about this concept.
"The three-dimensional space we are in can be regarded as a membrane. The heavier the object, the deeper the depression will be in the space, which is the distortion of space and time. The same will happen with the faster object..." Lin En said It may be explained in the most understandable way possible.
For example, if the same thrust is applied to a one-ton object, it can only push one centimeter, but if it is applied to a ten-kilogram object, it will fly out at an extremely fast speed.
Therefore, speed and mass must be related to some extent, and the relative mass formula is derived from this.
"As for why the speed of light remains unchanged in any reference object, I guess there must be an upper line of speed in the universe, and this speed is the speed of light!"
"Because light is always moving at the maximum speed that space can tolerate and cannot be surpassed, so even if you are moving away from light at a very fast speed, the measured speed of light will not change. After all, its speed has reached the upper limit of space. , naturally it cannot be improved in any form!”
Linn once again put forward an extremely amazing point of view, using the insurmountable speed of light to explain why it is constant.
"Using a guess that is obviously contrary to common sense to demonstrate another phenomenon that is even more contrary to common sense is simply ridiculous!!" A great wizard couldn't help but interrupt.
Steger and Jeffrey were hesitant to speak, and they did not agree with Linn's conjecture that the speed of light could not be exceeded.
Even the Speakers such as Anthony and Harrov frowned.
"I don't think there is anything wrong with making bold assumptions about an unknown phenomenon and then carefully demonstrating it." Linn shrugged and explained.
This is no longer a bold assumption, it can only be described as nonsense... Steger rolled his eyes. If the person who proposed such an outrageous theory was not Linn, the magic star, he would have been attacked by a group of people. That’s it.
Lin En naturally saw the confusion and doubts in everyone's eyes.
The existence of a speed limit in space and the principle of constant speed of light are indeed very strange, and anyone who hears this conclusion for the first time cannot help but refute it.
However, it is a fact. Like Planck's constant, gravitational constant, and strong coupling constant, it is an intrinsic property of space and one of the basic constants of the universe.
Thinking of this, Linn shook his head again and said. "I should have said before that all magic theories are a summary of the laws of things. They do not need to conform to our common sense, but our common sense needs to conform to the laws!"
"My light speed deflection experiment proves that light does not propagate through a fixed medium. No matter where it is, the measured speed of light will not change at all. This fully demonstrates the rationality of the constant speed of light."
Linn's answer is undoubtedly very concise, but effective. Just like his demonstration of wave-particle duality, he deduces the argument based on phenomena.
Because the facts are there, they can only use this theory as an explanation!
"Even so, I still can't agree with this guess. A light speed deflection experiment cannot completely confirm the theory of constant light speed. Maybe there are other factors that affect the results of the experiment!" Steger raised doubts.
After all, there are loopholes in the two concepts of the constant speed of light theory and the inability of the speed of light to exceed!
Dennis on the side also spoke. "According to the principle of speed relativity given by Speaker Lynn, as long as I run after the light, then for me, the speed of the light away will definitely be less than the speed of light. On the contrary, as long as I run in the opposite direction of the light, then The distance between us every second naturally exceeds the speed of light!"
The other great wizards also nodded. They could also think of countless similar methods. The so-called constant speed of light and the theory of insurmountability are like thin paper, which can be broken when poked!
(PS: I’ve been having a headache recently when I read the theory of relativity. I’ll finish the next chapter as soon as possible while I sort out my thoughts. The cosmological constant in the setting that is not affected by the observer is one of the important forces in high-dimensional existence, so I have to write about it... )
(End of chapter)
