With the help of magic, it was easy to make a simple improvement to the baffle, and it was completed in just a few minutes.
The baffle was changed from one hole to two holes, and its shape changed from round to square.
When the powerful beam of light shot out from the transmitter and penetrated two extremely tiny gaps, everyone present showed a look of astonishment on their faces.
Because nine relatively clear rectangular light spots appeared on the black wall behind the hole. The middle spot was the brightest, and the brightness of the other two spots decreased successively.
"Why are there so many spots of light?"
The apprentice who had made the suggestion just now was stunned. If light really propagates in a straight line, then after a beam of light passes through two holes at the same time, there should only be two corresponding light spots with the same shape as the holes appearing on the wall.
Even if the light refracted after hitting the object, such a strange phenomenon should not occur - not to mention that the brightest spot of light was located in the middle of the two holes, which was totally inconsistent with common sense.
This discovery also made Jeffrey feel extremely surprised. He had vaguely realized something in his mind, but he just couldn't think of the key point.
"It's just like water waves..." a short wizard beside him muttered to himself.
Jeffrey was stunned for a moment, then turned around, grabbed the wizard's collar tightly, and asked excitedly. "Water wave? What water wave?"
The short wizard was startled by Jeffrey's sudden excitement and stammered in response, "It's just the ripples of water, teacher..."
"Show me again, the water waves you just mentioned... now!" Jeffrey let the wizard go, used the [Mage's Hand] to grab a basin of water and placed it on the table, speaking excitedly.
The short wizard did not dare to delay at all. He took a double-hole baffle from the laboratory and put it in the basin. He left it there for a few minutes. When the water flow in the basin became completely calm, he reached out his hand and touched the water surface.
“It’s just like this!”
Under the gazes of the crowd, waves of water spread out in all directions from the finger as the center and soon hit the gap in the baffle.
After passing through the gap, the vibrating water waves immediately split into two new ripples, which began to spread inward in a semicircular shape with the gap as the center.
Because the two gaps are very close, the water waves generated quickly collide with each other and begin to interfere, offset or merge with each other.
"It's the crests and troughs... So that's how it is, so that's how it is!" Jeffrey understood the moment he saw the water waves, and an extremely surprised look appeared on his face. No wonder he felt a sense of familiarity just now, because this was very similar to the ripples produced by using force field magic to stir up time and space.
At this moment, he seemed to have seen a corona medal waving at him! "Teacher, what is going on?" The faces of the apprentices beside him were full of confusion. They didn't understand at all, and didn't quite understand why Jeffrey became so excited.
Jeffrey was so excited that he could not suppress it, and he immediately explained to the apprentices, "You can think of the ripples spreading on the water surface as light, and it will be easy to understand..."
Water waves create ripples on the calm surface of a lake.
Some places are bulging, which are the peaks, and some places are concave, which are the troughs.
If two ripples of equal intensity appeared at the same time as just now, they would interfere with each other when they met.
When the crests of two ripples meet, the resulting interference wave will become stronger than before, and when the troughs meet, the water surface will become deeper due to the superposition of the two troughs.
In addition, there is another situation where when the crest of one wave meets the trough of another wave, the two will cancel each other out.
The same is true for light. When a beam of light passes through two cracks, it will also interfere with each other, thus producing a strange phenomenon of alternating bright and dark light.
The bright areas are the peaks, and the dark areas are the troughs...
After Jeffrey's explanation, the apprentices looked at the water waves and soon found that after the two waves collided, the crest of the wave was exactly where the light spot appeared before. The two were almost exactly the same! "This explains the scattering and reflection of light. You see, after the water waves collided with the object, their power would be weakened and then bounced back..."
The more Jeffrey spoke, the more he felt that his wave theory of light was simply perfect and could fully explain every natural phenomenon of light.
"So light is definitely not composed of tiny light elements. Its essence is a wave, just like the ripples produced by stirring space and magnetic fields. It is a continuous and indivisible existence!" Jeffrey concluded decisively.
This is definitely enough to shock the entire magic world and decipher the research results of the essence of light! The wizards and apprentices gathered around Jeffrey were also very excited.
One can imagine what a storm this theory will cause when they present it at an academic seminar three months later. Their teacher Jeffrey will undoubtedly receive a Corona Medal, and they, the assistants, may also receive a Morning Star Medal as a reward.
This is a great honor!
While all the wizards from the schools were flattering him happily, someone made a suggestion with concern. "Teacher, should we publish some of the results first? I heard that many schools are studying optics. Since we can discover this phenomenon, others may not be able to think of it."
Hearing this, Jeffrey immediately became alert and quickly spoke up. "You're right. I'll start drafting now. You should sort out your research notes from the past few days as soon as possible. It would be best if you can finish the paper before noon."
"And help me find Rawl, the editor of Magic Daily. I remember he was staying in Kerosene City recently. If we hurry, maybe he can catch up with the Magic Daily published tonight!" Jeffrey gave the orders very quickly.
This experiment is actually not difficult to do, and the water wave theory is not that difficult to think about. Jeffrey knew very well that the reason he was the first discoverer was entirely due to the fact that he stayed in the rear to refine deuterium and tritium elements and had plenty of time to engage in academic research.
Now that the war against the empire is drawing to a close, everyone has their own time free. If we wait until the academic seminar three months later, who knows if someone will cut in the slack.
In short, publish some research results first to occupy a position, and never let others grab this honor first!
As for the wizards who gave him inspiration, Jeffrey patted his chest and promised that he would make sure they got a Morning Star Medal! "Anthony and the others should still be studying the changes in magnetic and electric fields, right?" Jeffrey thought proudly. There were three great wizards over there, and they still hadn't figured out the electromagnetic field thoroughly, but he figured out the nature of light first.
Jeffrey was extremely looking forward to what expressions they would have after today's Magic Daily was released.
At the same time, in the City of Kerosene, the great wizard Anthony and others, whom Jeffrey had been thinking about, were pacing anxiously in the laboratory, staring at the four exquisite formulas in front of them from time to time, frowning and thinking.
These formulas are exactly the Maxwell equations that Lin En wrote in his own handwriting in the microcosm! Anthony felt that these four formulas were extremely profound at the beginning. After in-depth research, he was surprised to find that this was simply the Bible of thunder magic!
If you break down each formula, the calculations are enough to fill several pages of paper. Their research and experiments on electric and magnetic fields are also enough to prove the accuracy of these calculations.
According to some Thunder Wizards - the truth is leaping onto the page in a magical way!
What they are exploring now is the speed at which lightning propagates in different media.
Like light, lightning is also extremely fast, and its propagation speed in the air can even reach tens of thousands of kilometers per second! But this is obviously not the limit! After testing dozens of different substances, Anthony found that lightning propagates very fast on conductors. In order to conduct an accurate experiment, they made several conductors that are ten kilometers long and made of different materials, and prepared to use practice to prove its speed.
This experiment should have results today!
Just as Anthony was becoming more and more impatient, the tightly closed laboratory was finally opened, and dozens of thunder wizards filed in. One of them said happily.
"The experiment has been tested, Master Anthony."
"How fast does it spread?" Before Anthony could speak, the Thunder Wizards at the side asked anxiously.
"It's 299,000 kilometers per second!" the man replied.
"Twenty-nine thousand kilometers..." Anthony kept muttering. Why did this speed sound so familiar?
"Are you sure you're not mistaken? Isn't that about the same speed as light?" Witch Fulla said in confusion.
"Of course there is nothing wrong, we have tested it hundreds of times!" The great wizard Sanchez rolled his eyes. The speed of electric current propagation in each conductor is the same, but due to the problem of resistance, the final current intensity transmitted is different.
In order to ensure its accuracy, Sanchez even did it himself, relying on the great wizard's excellent perception and computing power to judge the moment the electric current arrived.
After doing this dozens of times, he was almost numbed by the electric shock, so he was absolutely sure that the value was not wrong!
"But...how could it be such a coincidence?" The wizards present looked at each other in bewilderment.
Last time they tested the speed of light by relying on the rotation of gears and found out it was 299,520 kilometers per second. The difference between the two is minimal, and it can even be said to be exactly the same. It's just that the speed is too fast, beyond their reaction ability, so there will be slight errors during the test.
Anthony also absolutely did not believe that this was just a coincidence. There must be a deeper relationship between the two.
He had already noticed this when he was studying Maxwell's equations.
Suddenly, Anthony seemed to have thought of something, and suddenly pointed at the Maxwell equations on the table and shouted excitedly, "I understand... light is electricity, light is electricity!"
"Light is electricity?" Sanchez couldn't help but frown. Although the speed of electric current in a conductor is similar to that of light, we can't draw such a conclusion so arbitrarily, right?
You know, the speed of lightning in the air is much slower than that of light. For example, they can barely sense electric current, but they can't sense light at all! Anthony explained enthusiastically. "Listen, light may be electricity in another form. The two are like the relationship between magnetic field and electric field!"
"Just like the electric lights throughout the Kerosene City, after the electricity enters the wick, it is consumed in the form of light. Or, in other words, the electricity is converted into light and emitted!"
"If my guess is correct, electricity can be converted into light, then the concentrated light beam can also be converted into electric current!" Anthony slapped the table excitedly.
"Quick, start the experiment now!"
Hundreds of thunder wizards immediately got busy. After a whole night of trying countless materials, they successfully made a simple solar device! Just as Anthony thought, after the light beam hit the device, it was continuously converted into electricity!
Witnessing the successful start of the motor, the entire laboratory erupted in loud cheers and applause.
"Teacher, you are right. Light is electricity, and electricity is light!" Fulla was also proud of it. It seems that they have finally won the Corona Medal that penetrates the essence of light! Sanchez added on the side. "I dare say that light is probably a smaller electron. Lightning is like those radioactive elements. After being stimulated, it will continuously throw its own energy around until it is exhausted."
"What a brilliant idea! It looks like it won't be long before we can find light particles, or even smaller electrical elements!" Anthony said with appreciation.
This discovery will surely set off the entire wizarding world, and their names will surely be engraved in the history of magic!
However, just as everyone was rejoicing, the door of the laboratory was knocked open.
Anthony turned around with dissatisfaction and found that the person who pushed the door open was another disciple of his - Kagar.
Kagar held a few pages of newspaper in his hand, and after he hurried in, he panted and said, "Teacher, please take a look at today's magic daily. The great wizard Jeffrey said... he has successfully deciphered the essence of light!"
(End of this chapter)