Under Lynn's explanation, the great wizards present continued to discuss.

If this is the case, then there is some truth to the theory of the invariance of the speed of light.

"Wait!" Dennis suddenly sensed a loophole and asked in confusion. "Speaker Lynn, if you say so, then there should be a premise for the principle of invariance of the speed of light, and the speed of light must be detected in the inertial frame of reference to be a fixed value!"

If you are in a non-inertial frame of reference in motion, then the situation is different!

Probably thinking that such a mere statement was not appropriate enough, Dennis beckoned a large experimental vessel with the [Mage's Hand], filled it with water, and then dropped a float on the surface of the water and tapped it.

Under the gaze of everyone, waves of water rippled on the calm water.

Water waves and sound waves are both mechanical waves, and their propagation principles are naturally the same, and Dennis is ready to use water waves as an example to point out the loophole that the speed of light does not change.

"Now let's assume that this finger is a person who is swimming!" Dennis put one of his index fingers into the water again, and then faced the direction of the waves, gradually approaching the floating position, if he was used as a reference at this moment, wouldn't the speed of the waves flying towards him become faster? ”

A person moving in water naturally cannot be used as an inertial frame of reference, but Lynn does not have this premise in the theory of relativity, saying that the speed of light is eternal and constant in any frame of reference, which is obviously illogical!

"If light were just mechanical waves, that would be true, but unfortunately its special properties make light different from other waves." Lynn looked at the confused crowd and explained. "Don't forget that the propagation of light does not require a specific medium, it is even able to transmit in a vacuum!"

Dennis and the others frowned, this is indeed the biggest difference between light and other waves.

"Is it possible that it's just a medium where we haven't detected light yet?" Steg couldn't help but interrupt.

"I've tried this experimentally, and unfortunately, this so-called medium doesn't exist!" Lynn shook her head, and then showed the crowd the beam offset measurement cantilever he had made.

This is actually a modification of the Michelson-Morey experiment, he put a beam emitter at one end of the cantilever arm, and when the switch is turned on, a beam of light will fly out, and then the beamsplitter in the middle of the cantilever will divide into two rays of light to shoot in two different directions, and finally be reflected to the detection instrument by the mirror at the end of the cantilever .

You know, the planet beneath their feet is revolving around the sun at a super-high speed of thirty kilometers every second.

Assuming that there really is a medium of light in the universe, it is impossible to keep up with the eternal star revolving around the Sun, whether it is stationary or moving at a uniform speed.

It's like a float that has triggered a wave of water to move, and if you test it again, you will find that the float is closer to the wave in front of you, and the distance from the wave behind you is even farther away.

Although the speed of light is extremely fast, the orbiting speed of the Eternal Star can only reach 1/10,000th of the speed of light, and the deviation caused is also negligible, but for a wizard with atomic-level sensing accuracy, it is enough to detect these subtle changes!

"It's a pity that I've done many tests, and no matter which direction the beam returns from, the streaks on the detection instrument will not change the position in the slightest! Suffice it to say that there is no medium of light, which means that there is no fixed medium to refer to...... "Lynn shook her head.

"If light does not exist in a medium, why is its velocity a definite value?" Steg said in confusion.

Dennis et al. are also very curious about the fact that the speed of propagation of sound and water waves is determined because they travel through the medium.

To use an inappropriate analogy, it's like 10,000 people standing in a row, and the first person slaps the second person, and the second person slaps the third person, so that the speed of transmission is equal.

If there is no medium, then the speed of light should be fast or slow.

As soon as Lynn 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 a vacuum is only related to the vacuum permittivity and vacuum permeability!"

As the voice began, the four Speakers, Anthony, Haroff, Aurora, and Vittorio, walked in through the door.

And the person who just opened his mouth to respond was none other than Anthony!

Steg and the other great wizards turned their heads to look over, and while greeting, they looked at Anthony with envy and jealousy, a few months ago, the other party was just a great wizard like them, but now he has become a legendary wizard and the speaker of the wizarding council.

Only Geoffrey's eyes showed no jealousy, but a little admiration, and he was able to successfully complete the legendary promotion ceremony while understanding the strange phenomena of microscopic particles, which made him ashamed.

Anthony ignored these glances, looked at Lynn and continued. "The reason why I was able to discover that light is a type of electromagnetic wave in the first place was based on the derivation of Speaker Lynn's electromagnetic equations!"

However, in Lynn's equation describing electromagnetic waves, the oscillating electric field and the magnetic field have a velocity related only to the vacuum permittivity and the vacuum permeability, two directionless scalars.

At first, he even had some doubts that this could be Lynn's negligence, after all, any speed must have a reference, just like the example Lynn gave at the beginning, the silver coin he fired could be said to be fifty meters per second, or thirty kilometers per second, but the reference was different.

Unless, as the theory of relativity says, light has the same velocity for any reference object!

"Not bad!" Lynn nodded. "You can understand the permittivity and permeability as the 'resistance' of space to the electromagnetic field!"

"Spatial resistance?" Steg and the others thought about this concept.

"The three-dimensional space we are in can be seen as a film, and the heavier the object, the deeper the depression in space, that is, the distortion of space-time, and the faster the object...... Lynn explained in the most understandable way possible.

For example, if the same thrust is applied to a one-ton object, it can only be propelled by one centimeter, but if it is applied to a ten-kilogram object, it will fly out at a very fast speed.

So velocity and mass must be related to some extent, from which the relative mass formula is derived.

"As for why the speed of light remains the same in any reference, I suspect that there must be a speed upper line in the universe, and that speed is the speed of light!"

"Because the moment of light is then moving at the maximum speed that space can tolerate, it cannot be surpassed, so even if you move 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, and naturally it can no longer be increased in any form! ”

Once again, Lynn throws out an incomparably surprising point of view as to why the speed of light is incomprehensible.

"It's ridiculous to use a speculation that clearly violates common sense to justify another, even more contrary to common sense!!" A great wizard couldn't help but interrupt.

Steg and Jeffrey stopped talking, but they also didn't agree with the conjecture that the speed of light thrown out by Lynn could not be surpassed.

Even the speakers of parliament such as Anthony and Haroff frowned.

"I don't think there's anything wrong with making bold assumptions about an unknown phenomenon and being carefully demonstrated." Lynn shrugged her shoulders and explained.

This is no longer a bold assumption, it can only be described as gibberish...... Steg rolled his eyes, if it weren't for the fact that the person who came up with such an outrageous theory was Lynn, the magic star, he would have been attacked by a group now.

Lynn naturally saw the confusion and doubts in everyone's eyes,

The existence of a speed limit and the principle of the constant invariance of the speed of light in space is indeed very strange, and anyone who hears this conclusion for the first time cannot help but refute it.

However, it is a fact, and it is one of the fundamental constants of the universe, just like Planck's constant, gravitational constant, and strong coupling constant.

Thinking of this, Lynn shook her head again and said. "I should have said before that all magic theories are summaries of the laws of things, and it doesn't need to conform to our common sense, but our common sense needs to conform to the laws!"

"My experiments with the deflection of the speed of light prove that light does not propagate on a fixed medium, and that the measured speed of light does not change in the slightest no matter where it is, which fully demonstrates the rationality of the constant speed of light."

Lynn's answer is undoubtedly very succinct, but it is very effective, just like his argument for wave-particle duality, which is to infer the argument from the phenomena.

Because the facts are where they are, they can only use such theories as explanations!

"Even so, I still can't agree with this speculation, a light speed deflection experiment does not fully confirm the theory of the invariance of the speed of light, maybe there are other factors that affect the results of the experiment!" Steg questioned.

After all, the theory of the invariance of the speed of light and the inability of the speed of light to exceed these two concepts are simply full of loopholes!

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 at which the light moves away must be less than the speed of light, and conversely, as long as I run in the opposite direction of the light, then our distance per second will naturally exceed the speed of light!"

The rest of the great wizards also nodded, they could also think of countless similar methods, the so-called constant speed of light and the theory of unsurpassability is like thin paper, it can be broken when you poke it!

(PS: I've had a headache looking at the theory of relativity lately, wait for me to sort out my thoughts, and finish it as soon as possible in the next chapter, the cosmological constant in the setting that is not affected by the observer is one of the important forces of high-dimensional existence, so I have to write it...... ）

(End of chapter)