After Raphael returned to the ground from the air, the first words he said stunned everyone present.
"I'm afraid it will be difficult to continue this experiment!"
"Master, what's going on? Is it possible that the refraction angle of the light is wrong?" Nancy asked eagerly, but they confirmed more than ten times that every mirror was carefully placed according to the drawings.
But before Raphael could answer, Glenn sighed and said. "It must be because the light is getting weaker, right?"
"That's right!" Raphael nodded, "I just confirmed it in the air. After being reflected by the seventy-third mirror, the light beam you created has become so weak that it cannot be recognized by the naked eye..."
"It decayed so fast?!" Glenn's face turned pale. If the light could penetrate three or four hundred mirrors, there might be a way to make up for it. Just find a few more wizards to cast spells together and create a more powerful beam. enough.
But these are seventy-three mirrors, and they have only traveled a quarter of a distance. With this attenuation frequency, they have to increase the beam ten times or even a hundred times?
How is this possible?
"Master Lin En, I think you should know what's going on, right?" Raphael turned to look at Lin En and asked.
Everyone present turned their attention to the magic star, and suddenly remembered Lin En's evaluation of this experiment just now.
It's possible, but it's not feasible...
Lin En stopped trying to sell things at this time and explained. "It is possible to make light travel farther through the principle of reflection. However, although the mirror can reflect light, it cannot completely reflect it. A part of the energy must be lost every time..."
"That means we should reduce the number of mirrors and increase the distance of each reflection?" A wizard quickly thought of a solution.
"No, that won't work at all," Glenn said with a sigh. "Light can't travel very far."
He had already tried this before, so he reduced the distance between the two mirrors to about a hundred meters.
"That's because the elements present in the air also reflect and absorb light, and the light itself does not propagate in parallel, but spreads in all directions, so we can see light..." Linn continued to explain.
In other words, as long as the light can be seen, it means that the light is dispersed and reflected into their eyes... Raphael immediately understood what Linn meant, but then suddenly retorted.
"This shouldn't be right. Then how do the sun's rays travel across a distance of tens of millions of kilometers to reach this eternal star?"
After Raphael's reminder, many wizards also discovered the 'loophole' in Linn's words. If the light would continue to decay, then the light from the sun would not be able to reach here!
The wizards of the prophecy school have calculated the distance between the Eternal Star and the sun. It is a very astonishing value. Even the nearest point is hundreds of millions of kilometers away!
"Outside our planet, in the vast universe, the content of elements is very rare, and light does not lose energy in the vacuum. As for when it reaches this planet, it is only scattered and absorbed by the elements, and it does not disappear. ..." Linn shook his head and said.
Lin En answered and dismissed everyone's questions, but the successive problems left Glenn and others completely stunned.
In this way, the problem of the intensity of light attenuating with distance cannot be solved. Glenn thought hard for a while, but he couldn't figure out how to make the light cross a hundred kilometers and still be seen by them...
Is it possible that we can only declare failure?
Glenn was very unwilling. He had made so many preparations and put up such a big battle, but in the end he still fell short...
It is conceivable that they will definitely become the butt of jokes among wizards tomorrow.
At this moment, a sound like a loud bell suddenly rang in everyone's ears. "Then let these obstructive elements disappear, wouldn't it be great to create a vacuum area large enough to simulate the environment of the universe?"
Everyone present looked in the direction of the sound, and then they discovered that several legendary speakers were walking towards this direction, and the person who spoke was clearly Harov!
"Lord Harrov!" Glenn was pleasantly surprised.
Yes, as long as a vacuum area is created to cover the light propagation distance, the weakening of the light intensity can be greatly reduced.
Only a legendary wizard like Harrov could come up with this outrageous, yet very effective solution!
After Harrov spoke, the wizards gathered nearby also gave Glenn advice.
For example, a thousand mirrors are too many. They can increase the distance of each reflection by one kilometer, so that only a hundred mirrors are enough!
Even Anthony stood up. He was very interested in this experiment of measuring the speed of light on a mirror, and even proactively suggested that he could use thunder magic to create a more powerful light source...
Amid the buzzing discussions, one problem after another was solved one after another. Such an enthusiastic Moyan atmosphere also made Linn feel very comfortable.
Although there are many people watching the fun and even waiting to see the joke, there are also many wizards who are focusing on magic research and want to find out how fast the speed of light is.
Glenn also regained his composure, modified the position and angle of each mirror on the drawing, and reduced the number to a hundred, preparing to conduct another experiment with more powerful light!
"Everyone who has nothing to do with it should stay away first. All the great wizards should stay!" Harrov said solemnly. Even if he was a legend, he couldn't repel elements on such a large scale. He had to gather the power of everyone to do it. OK.
The preparations once again took an hour to be declared complete.
Anthony took the lead, and the flashing lightning began to appear in the palm of his hand, and became brighter and brighter. The violent thunder kept beating, and both civilians and wizards squinted their eyes. The light was so bright that people could not look directly. …
"Let's start!" Harrov's tone increased a bit, and his voice spread to every corner of the city.
At the same time, twenty great wizards and three legends cast spells together, and the surging elements around them were quickly expelled by the huge magic power. In just three seconds, a vacuum field covering less than half of the city had quietly taken shape. !
"What a generous move..." Lin En said with emotion. The wizards' imagination and practical ability far exceeded his expectations, but he quickly calmed down and raised his hands to expand his own domain and complete the tasks he was responsible for. That part of the vacuum section.
