"Master Anthony, are you sure?" A wizard who supported the wave theory stood up excitedly, then hesitated. "But, how is this possible?"

Apparently, even he himself was not sure about this statement.

What is electromagnetic wave? It is a wave phenomenon caused by the alternating changes of electric field and magnetic field.

The entire kingdom's communication system relies on the use of electromagnetic waves, so wizards who are proficient in electricity are no strangers to it.

That's why they found it unbelievable. If, as Anthony said, light was an electromagnetic wave, then when they communicated, there should have been an extremely obvious light wave!

"To be precise, light is an electromagnetic wave in a specific frequency band." Anthony raised his voice a little, suppressed the chaotic doubts on the court, and then explained. "And electromagnetic waves of other frequencies cannot be received by our eyes, so we can't see them!"

"You mean that light waves are like sound waves?" Harof's mind moved, and he quickly understood the underlying meaning of Anthony's words.

Because there is something similar that they are very familiar with, and that is the sound waves generated by the vibration of objects!

Due to the limitations of the human ear, we can only hear sound waves with a frequency of about 20 to 20,000 Hz. Once the frequency exceeds or is lower than this, we cannot hear it.

As for Hertz, it refers to the measurement of the number of repetitions of periodic changes per second. It is described in detail in Lynn's book "The Secret of Sound - The Principle of Resonance". It is said to be named after a deceased scholar in the "Secret Society" who studied sound waves.

"That's right!" Anthony nodded. "According to my experiments, the frequency of visible light is about 400 to 700 Hz."

"That is to say, we can create light by releasing electromagnetic waves!"

"Just like this!" Anthony raised his hand, the electric field and magnetic field alternated, and a dazzling beam of light shot out from his fingertips.

"Light, it's really light!" A group of wizards from the particle school looked at this scene in horror, their faces turned pale, because this meant that Anthony was not lying, and light was indeed an electromagnetic wave.

Sanchez and Arad's faces were also filled with disbelief.

Lynn was very interested in Anthony's technique of using electromagnetic fields to quickly alternately emit light beams. This meant that many steps could be saved when using laser magic in the future, thereby greatly improving the speed of launching light magic.

This is also the necessity of developing magic science. One only needs to point out a direction, and there will always be powerful people who can innovate it. Otherwise, if he alone wants to magicalize many scientific research theories and tap their potential, he will be exhausted.

"I think the speakers can come to a conclusion now, right?" Jeffrey said with a smile.

Anthony's research is undoubtedly the most direct evidence of the light wave theory. Even Sanchez cannot change the fact that light is an electromagnetic wave!

The only thing that made Jeffrey a little regretful was that there was only one Corona Medal but it had to be shared between the two of them. It might be disassembled into several Silver Moon Medals, and he would miss the highest honor in the magic world! "Wait... Speakers, I have another question!" Just as Jeffrey was thinking, Arad suddenly stood up and interrupted. "If light is a wave, how do we explain the particle nature it exhibits?"

Jeffrey replied impatiently. "These are just some side issues. The facts are right in front of us. You can't deny that light is an electromagnetic wave, right? As for the mystery of light waves, it is definitely not something that can be thoroughly explored in a few months. As long as we follow the right path of thought and continue to study, one day these problems will not be a problem anymore!"

Harof, who was sitting in the judges' seat, also nodded. Now they should first figure out the nature of light and resolve the [casting obstacles] of lightning wizards. It would not be too late to study it slowly later.

However, Arad insisted, "So what if the light is electromagnetic waves? How can you prove that electromagnetic waves are not made up of particles?"

"You know, any wave needs a medium to propagate, but electromagnetic waves don't. I've long suspected that it's not a real wave, but a particle!"

Arad's imagination completely confused Anthony.

Are electromagnetic waves particles?

Are you kidding? This thing is actually transmitted in the form of waves!

However, this explanation also allowed the wizards who believed in light particles to regroup. After all, particle theory can explain the phenomena of light interference and diffraction, but Sanchez and Anthony could not explain the principle of pinhole imaging using light wave theory.

So maybe this electromagnetic wave...it is also a particle!

The large exhibition hall that accommodated tens of thousands of people soon became noisy, with arguments and discussions continuing.

Harof, Aurora and Vittorio all had frowns on their brows at the judges' table. When Anthony proposed that light was an electromagnetic wave, they all thought that the dispute had come to an end. However, Arad suddenly spoke, causing them to hesitate again.

"If there is no other stronger evidence to prove that light is a particle, then I think the wave theory of Master Jeffrey and Master Anthony is more in line with the nature of light." Harof said after pondering. As a master of force field magic, he naturally prefers the wave theory.

After all, there are many similarities between the two. Maybe just like when they cast force field magic, space is the medium for electromagnetic waves.

Vittorio nodded, and agreed that the wave theory was more feasible.

Aurora on the side objected. "We can't jump to conclusions so easily. Many properties of light are still under discussion."

Obviously, she supported the light particle theory.

After several speakers expressed their opinions, everyone present turned their eyes to Lin En.

As the originator of the law of free fall, universal gravitation, and the element orbit model, the authority of this magic star in magic research is unquestionable! Under the gaze of tens of thousands of eyes, Lin En looked at Anthony and spoke slowly. "Your research is very correct. Light is a kind of electromagnetic wave!"

As soon as these words were spoken, all the wizards who believed in light waves showed smug smiles on their faces. It seemed that Speaker Lin En was more supportive of their light wave theory.

Sanchez, Arad and others looked very ugly. With the three speakers, Harof, Vittorio and Lynn, endorsing the light wave theory, it is likely that the light particle theory will be thrown into the trash after this seminar.

"This is exactly derived based on your Maxwell equations!" A slight smile appeared on Anthony's face.

What surprised the two was that after Lin En finished speaking, he suddenly turned to Sanchez again and spoke with appreciation.

"Your argument is also very good. Just like, light does have some properties of particles, and the speculation that electromagnetic waves are particles is also very bold..."

After hearing this, Sanchez, who was sighing, suddenly raised his head and looked at the magic star in disbelief.

The smile on Anthony's face froze, and he was a little confused as to why Speaker Lynn suddenly agreed with Sanchez's point of view.

Could it be that the other party feels that the light wave theory still has some loopholes, so he plans to delay for a while before drawing a conclusion?

Harov also thought of this, and raised his voice a little, reminding him, "Chairman Lin, now that [Spellcasting Obstacles] are spreading throughout the kingdom, it would be best if we could come to a conclusion on the nature of light at this seminar!"

"No, I think you misunderstood me, Speaker Harrov." Lynn shook his head, looked at the wizards in the exhibition hall, and said with a smile.

"I mean, is it possible that light is both a particle and a wave?"

Lin En's voice was not loud, but it was transmitted very accurately to the ears of everyone present. However, everyone who heard it couldn't help but wonder if they had heard it wrong.

Is light both a particle and a wave?

"Please forgive my intrusion, but could you explain what this means?" Jeffrey frowned and said in great confusion.

"Is it like a rope, which looks continuous on the surface but is actually made up of individual elements?" Arad said with a creative mind.

Sanchez nodded. This sounded very reasonable and his photoelectron burst theory perfectly corresponded to what the Magic Star had just said.

Most importantly, this means that particle theory is the real core, and waves are made up of a large number of scattered particles.

However, Linn calmly rejected Arad's idea. "What I mean is that light has both particle and wave properties, just like what we saw in the experiment just now."

"It's both a particle and a wave? This is impossible and goes against common sense!" Jeffrey couldn't help but say.

Some wizards from the empire were extremely disappointed with this famous magic star. When it was Lin En's turn to speak, they were all expecting the other party to come up with some amazing argument to end the wave-particle dispute that had lasted for several months.

The result is indeed astonishing now, but the argument is totally illogical and can only be described as bizarre! Waves are waves, and particles are particles. The two exist in completely different forms.

For example, they release a high-frequency shock wave that can cut a wall in half, while a high-speed impacting particle can only make a large hole in the wall.

For example, a wave can pass through several slits at the same time and even split into more microwaves, but can a particle do that?

Of course it's impossible! Lin En didn't get angry because of everyone's doubts. He raised his voice slightly to suppress the discussion. "Master Jeffrey, what do you think common sense is?"

"Common sense is naturally in line with logic and the common sense we all know..." Jeffrey frowned.

"Yes, to put it bluntly, it is just the experience summarized from our past cognition." Lin En nodded, and then continued. "But this may not be correct!"

"For example, before we measured the circumference of the planet and used the pendulum experiment to confirm the planet theory, everyone believed that the planet under our feet was actually a flat continent, right?"

Jeffrey was choked for a moment. Not to mention a few years ago, many people still don't believe that the continent under their feet is a sphere, because it is completely beyond their cognition! Arad on the side retorted. "But this time it's different. Your argument is not just inconsistent with common sense, it's even... not logical!"

"That's the crux of the matter!" Lin En nodded, agreeing with Arad's words, but he spoke again the next moment. "Because the microscopic world cannot be argued with common sense!"

"Recently, I have also been studying these microscopic particle phenomena and have discovered some patterns."

"According to my research, not only light, but also electrons, protons and other microscopic elements have similar wave phenomena... I gave them a new name, called quantum!"

"Yes, you can understand it as a particle with wave characteristics!" Lin En said firmly.

The wizards present, including Speaker Harof, all had expressions of disbelief on their faces.

"Can you let us see your research manuscript?" Anthony asked anxiously. He believed that Lynn would never make a fuss and would not destroy his reputation on such an important occasion.

But this theory is so incredible that he needs to see more rigorous experimental proof rather than just words.

"No problem!" Lynn agreed without hesitation, then he clicked his fingers and the neatly stacked pages on the desk flew out one by one and landed in the hands of every wizard in the exhibition hall.

Anthony also got a copy. At first he thought it was a research manuscript, but after taking a few glances he was surprised to find that it was not what he thought.

"What is this? A disclaimer?!" Aurora looked at Lin En strangely and asked.

"I am a little worried that publishing these microscopic phenomena will lead to more serious consequences than [Spellcasting Obstacles], so I have this disclaimer. You can choose whether to listen to my quantum theory!" Lin En said concisely.

Is it really necessary to be so exaggerated? Harof's face twitched. The consequence was even more terrifying than [Spellcasting Obstacle]? The wizards present were in an uproar. Some thought that this magic star was pretending to be mysterious, while others were uneasy. The previous debate on the nature of light had caused many people to lose the ability to cast photoelectric spells.

"In short, I will use experiments to prove the wave and particle properties of quantum at the academic seminar tomorrow... If you are willing to come, just sign your name in the disclaimer!" Lin En shrugged, then announced that today's academic seminar was over, and then he no longer paid attention to the wizards who were still in confusion, and left the venue directly.

His experimental device is still missing the last piece of the puzzle, which is how to emit a single photon or electron and make it move in a specific direction. This is the biggest difficulty of the experiment and an especially important part! (End of this chapter)