Martin suddenly remembered that when he woke up this morning, he found that his experience value had exceeded 700 points, and before going to bed the day before, he was only about 650 points.

Does it have anything to do with his advancement?

If there are more students to advance, wouldn’t you be able to advance by sitting down?

However, reason tells him that this kind of thing is unlikely to be copied in large quantities, and it can only be regarded as an unexpected surprise.

Martin pulled his thoughts back, and he cared more about what Gress saw.

After learning about the existence of the astronomical telescope, I couldn't wait to give it a try.

However, it is daytime, and the bright sunshine will cover up other astronomical phenomena. Martin is not sure whether there are other planets in his current galaxy and whether they can be observed during the day.

In fact, the sun is not unaware of it, but it is necessary to use a filter to reduce the intensity of the light to prevent piercing the eyes.

"You have observed the moon, right? How is it different from what you usually see?"

Martin was interested in what Gress saw with a telescope.

"It's strange. You can see the moon's surface at the intersection of light and darkness, with some very unique textures." Glace replied recalling.

Texture?

Could it be...Crater?

But it seems to be different from Gress's description.

Of course, it is normal for thousands of celestial bodies to have different terrain characteristics.

After saying a word, Martin wanted to see it with his own eyes.

Clin and Rocky were listening to their conversation in a daze.

"Teacher, what are you discussing?" Clin asked dissatisfiedly with frowning.

"A brand new career." Martin looked up at the sky blocked by the ceiling, feeling a little emotional and a little distant.

In a sense, the development of modern physics comes from astronomical observation. Although I have no intention of changing anything, what I am doing now is tantamount to having embarked on this journey again.

Although the astronomical telescope was not directly instructed by Gress, it was also inspired by itself.

If you can really open a new chapter in natural philosophy in this world, then you are the founder...

But in the blink of an eye, Martin smiled self-deprecatingly again. He had only three students in total, so he was thinking a little too much.

Moreover, it is not that easy to spread these theoretical knowledge in this world.

Although the truth is always in the hands of a few people, only two or three people believe it will not change anything.

When his eyes returned to class, Martin felt that maybe it could add a little more difficulty to his students?

A lot of thoughts happened in his mind, and he thought for a while before he started today's arrangements.

"I won't test it today..."

Before Martin could finish his words, Clin was already clapping his hands excitedly.

"Okay!"

Martin glanced at the two of them: "You two, have you arranged for the evening?"

"Ah! No, teacher, are you going to work overtime today?" Clin's face changed instantly, collapsed, and she said with a frown.

work overtime?

That's not called overtime!

It is generally called: make-up lessons!

Martin smiled and said, "Don't worry, it's a very interesting course. Do you like to see the stars? Let's observe the astronomical phenomena together tonight..."

Halfway through, Martin remembered that he should have obtained Gress's consent.

After all, he made the telescope and was still placed at his home.

“Is it convenient?”

He turned his head and looked at Gress again and asked.

Gress nodded quickly: "No problem, in fact, I have many questions about the moon and stars."

Martin is probably aware of Glady's problem.

He smiled faintly: "Maybe there is no need to wait until the evening. Today we will discuss some issues that you may have thought about before!"

"Let's go back to the original question first. What do you think the earth under our feet is in shape?"

Hearing this question, Clin and Rocky showed curiosity on their faces.

Glace's eyes were even more excited.

They did not answer because Martin had actually suggested that they were standing on a huge sphere.

Martin pushed a piece of discus on the table to Gress and began drawing on paper.

Discuss have become a must-have item in the classroom, because of Glace's ability, allowing Martin to make various teaching props on site.

The density of gold is too high. Although the Earl's house may have more gold, at Martin's request, Glads specially prepared some materials for the classroom.

The drawings were drawn quickly, not complicated, just a simple version of a galaxy.

There are currently only three celestial bodies in the galaxy, the sun, the earth, and the moon.

The earth revolves around the sun, the moon revolves around the earth, and the earth and the moon can also rotate by themselves.

Gress is worthy of being a craftsman sequence. Looking at the pictures written by Martin and Martin's explanation, Martin's ideas quickly turned Martin's ideas into real objects.

Of course, the discus is used as the raw material for shaping.

Three spheres that can rotate.

Martin turned the hollow sphere representing the earth, and its rotation and rotation are well reflected.

Although the proportion may be a bit problematic, it is enough to use it for teaching.

Looking at the curious eyes of the three, Martin began to attend class.

He looked at it seriously and said to the three of them in the serious tone as possible: "The next teaching content may sound difficult to accept, but that is a fact, a fact that can be proven!"

"In the next period of time, we can slowly unveil the veil on the principle of operating this world."

"Teacher, aren't we learning this textbook anymore?" Clin asked, pointing to the written one of Martin.

Martin smiled: "This is not a conflict. We have learned the concepts of speed, mass, and force. Now we turn to page 22 and talk about circular motion. What is circular motion is already introduced."

"The sphere under our feet is moving around the sun in a circular motion. This statement is not necessarily accurate, because its movement trajectory is not a perfect circle, it may be a somewhat flat ellipse..."

Earl Cross appeared in the teaching room at some point, standing aside and looking at the toy-like "solar system" in Martin's hand, revealing the meaning of thinking.

"We're really standing on a ball?" Clin's brown eyes showed an incomprehensible gaze.

Martin nodded and explained patiently: "Think about the sunrise and sunset every day, that is the best proof. The sphere turns itself around for a day..."

"It rotates around the sun for a year. The moon revolves around us for a month?" Gries continued to look at the rotating sphere.

Martin nodded again.

"But why must this be the case?" Clinn brows remained unbrightened.

"Then what do you think this world should be like? Why are there sunrises and sunsets?" Martin sat down, took a sip of tea, and asked back.

"But I heard that the Temple of Earth doesn't seem to think so..." Clin looked at the rotating ball in distress.

Martin raised his eyebrows: "Mother Earth? How did they explain it?"

Gress answered: "They think that the angels are pushing the sun so that it can provide sufficient sunshine."

"We live in a vast land, surrounded by oceans. The Earth Goddess has raised two north and south lands from the sea for people to survive."

OK, the classic saying of the world is round and the place!

And it's the kind of feudal superstition.

Martin thought there was any high-profile argument!

"Which one do you think is more reasonable between their statement and my theory?"

Although Martin asked Tiya, he asked everyone.

The answer is obvious.

Although there is God in this world, everyone should understand in their hearts that God is not omnipotent!

"And, this theory can be proven in many ways, and examples can be easily found."

Martin said, walking to the north facing window, opening the window, pointing to the blue sky in the north.

"We all know that the Snow Mountains of Siva are very high and have snow all year round, right in our north. But can you see it here?"

Several people looked to the north, and under the clear sunlight, some hills could be seen in the distance.

The height of the snow-capped mountains is not comparable to that of hills, and it is completely invisible now.

"If the earth was flat, theoretically, people in the entire Gapher Empire could see the towering Siva Mountains! It was so high that it almost penetrated the entire Northern Continent."
To be continued...