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Ying Wuji frowned, thinking.

He knew that since the boss said so, there must be a corresponding reason.

"Under the fish?"

When Xia Yuan heard Luo Chuan's words, he was also puzzled, not understanding why he wanted to attack that position.

However, based on the boss's insight, it should not be wrong.

He chooses to trust the boss!

Xia Yuan held his breath and stared at the water.

By coincidence, a fish swam past in front of him.

good chance!

Xia Yuan's eyes condensed, his arm muscles exploded, and the spear even burst into the air!

The location of his attack this time is below the fish!

Huh!

Unlike before, this attack directly pierced the fish!

Xia Yuan picked up the spear and looked at the fish that was still solemnly on it, a little surprised.

"Actually, it really hit..."

Xia Yuan came to the shore of the lake and put his spear on the ground.

He looked at Luochuan and asked puzzledly: "Boss, why can I hit the bottom of the attacking fish? I clearly aimed at the fish, but I couldn't attack?"

This question is also the doubt in everyone's mind.

Why on earth?

Looking at those eyes full of curiosity, Luo Chuan felt that he had to share the charm of physics with them!

The science of another world, it is my Luochuan to carry forward!

"Do you know why we can see things?"

Luo Chuan thought slightly and raised a question.

"It's because we have eyes!" Gu Yunxi replied excitedly, "Some monsters don't have eyes. They perceive the environment by mental power!"

The rest of the students gritted their teeth.

hateful!

Such a simple question was actually preempted!

Contrary to Gu Yunxi's expectation, Luo Chuan shook his head.

Obviously, her answer was wrong!

"Boss, what did I say wrong?" Gu Yunxi was a little angry.

"I feel it is because of the light."

Xia Yuan touched his chin, and then gave this answer.

Luo Chuan nodded: "That's right."

A smile appeared at the corner of Xia Yuan's mouth.

That is the smile of the winner.

Gu Yunxi was puzzled: "Why?"

Luo Chuan explained: "In an environment without light, even if you have eyes, can you see things?"

Gu Yunxi's expression stagnated.

It seems...this is indeed the truth...

"but……"

Gu Yunxi wanted to refute, but was held back by her best friend Jiang Wanchang.

Jiang Wanshang persuaded in a low voice: "Yun Xi, it's alright, you don't know the boss's strength and realm, you should be correct in everything he said."

Gu Yunxi gave an "Oh" and did not refute.

She is not the kind of unreasonable girl.

At this time, Luo Chuan's voice sounded again.

The two quickly recovered and listened carefully.

These things Luo Chuan said sounded quite novel to them.

This is a new kind of knowledge different from cultivation!

Luo Chuan: "It is because there is light that we can see all things in the world. Just like mirrors and lakes, the light falls on it, is reflected, and falls in our eyes, so images appear."

Everyone nodded in agreement.

Luo Chuan's words are easy to understand, and the examples cited are all attempts in life.

Luo Chuan went on to say: "Similarly, when light passes through some substances, the path will change accordingly. This phenomenon is called refraction."

Speaking of this, some people can't understand it.

Luochuan knew that practice is the only criterion for testing truth.

He picked up a fairly straight branch and walked to the lake.

Everyone followed.

"Look." Luo Chuan inserted the branch into the water. "Does the branch seem to be bent?"

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