Taoyuan little fisherman

Chapter 694 Looking for Sea Monsters

A classmate raised his hand and replied: "Brother, the key to the formation of mirages lies in the spatial stratification caused by different densities. Whether it is air or water, as long as the conditions are met, mirages will be produced, right?"

Wang Tianhui nodded, "That's right!"

A middle-aged woman suddenly realized: "No wonder there are always such plots in film and television dramas. A person who gets lost in the desert will see an oasis in the distance, but he never reaches it until he dies. It turns out that it is just a mirage."

Wang Tianhui explained in detail: "In the desert, the sand is baked by the sun during the day, and the temperature on the surface of the sand layer rises rapidly. Due to the poor heat transfer performance of the air, when there is no wind, the vertical air temperature difference over the desert is very significant. Cold, high air density in the upper layer, low air density in the lower layer.

When the sunlight enters the low-density air layer from the high-density air layer, the angle of the light changes, and through the refraction of the light, the oasis in the distance is presented to people. "

The kid has another question, "Is the mirage formed in the desert the same as the mirage we see in the sea?"

Wang Tianhui patted the child on the head and said, "That's a good question!"

"For example, in the summer desert, when the sun is hot, the sand is scorching hot. Because the specific heat of the sand is small, the temperature rises very fast. The temperature of the lower air near the sand rises very high, while the temperature of the upper air is still very low. Due to thermal expansion and cold contraction, the density of hot air in the lower layer close to the sandy soil is low and the density of cold air in the upper layer is high, so the refractive index of the air is small in the lower layer and large in the upper layer.

When the light reflected from a higher object in the distance is continuously refracted from the denser air in the upper layer into the sparser air in the lower layer, the incident angle gradually increases until it becomes equal to the critical angle and total reflection occurs. If you look at the reflected light, you will see the mirage. "

"Ah, it turned out to be a mirage. Sure enough, the environment is different, and the mirage that appears is also different." The child said half understanding.

Wang Tianhui laughed: "And ah, the light from the top of the object will now be lower than those from the bottom, so these mirages are often upside down."

"Upside down? It's amazing! When I grow up, I will go to the desert to see the mirage!" The child has a new goal.

The older child who was thinking suddenly came up with an idea, "Brother, after the black asphalt road is heated in summer, it will also form a density gap with the upper air. Can you also see the lower mirage?"

Wang Tianhui nodded, "That's right!"

The big friends and the children cheered, "Then there is a chance to see mirages in the city!"

Just now, everyone almost scared everyone into thinking it was the end of the world, but Wang Tianhui's few words turned it into a large-scale science popularization scene.

After understanding the reasons for the formation of mirages, everyone can also face up to this natural phenomenon.

At this time, as the sunshine time becomes longer, the sea temperature continues to rise, and the mirage disappears.

I thought this matter was over, but who would have thought that a girl suddenly exclaimed.

"Since the mirage is just a scene refracted by light, then what we see is actually something that happened elsewhere? Is the sea monster that ate the whale real?"

Wang Tianhui nodded, "Yes, it really exists."

This topic immediately aroused a new commotion.

"Yes, that means there are sea monsters in this sea."

"It's terrible. Will it be dangerous for us to go to sea in the future?"

"I originally wanted to go to Sea God Island, but now I'm a little scared."

"Uncles and aunts, don't worry, mirages have a magnifying effect. In fact, sea monsters and whales are not that big."

"Compared to whether it is not scary, I want to know what species it is."

"Do you think it looks a bit like a dinosaur? Is it my illusion?"

Everyone exclaimed, but the sea monster was much more friendly to them than the end of the world, and the surprise was greater than the fear.

Ding!
"Trigger the side mission: find the sea monster, find the truth about the sea monster within three hours, and get a chance to draw a lottery."

Unexpectedly, the mission of the live broadcast room came at this time.

It happened that Wang Tianhui wanted to investigate this matter, which had already affected the tourism industry of Sea God Island.

Did dinosaur eggs hatch baby dinosaurs?Only when you find it will you know.

Of course, it does not rule out the emergence of new unknown creatures. After all, there are all kinds of possibilities in this vast sea.

"Don't panic, everyone. I will investigate this matter. If you are interested, you can follow my live broadcast room. I will take you to find out the truth in the form of a live broadcast."

If you want to dispel everyone's worries, you have to solve the mystery for them.

Of course, by the way, Amway's own live broadcast room, it is also good to increase fans.

"I know Big Brother's live broadcast number, we like watching it the most!"

"I also know that I am a fan of Old Wang next door."

"Ah, it turns out that Mr. Wang is the old Wang next door. I often see this name on the Internet."

"Mom, I'm promising, and I've met a big internet celebrity!"

With the help of many young people, people on the beach paid attention to Wang Tianhui's live broadcast room, waiting to watch him live broadcast to find the sea monster.

Everyone on the beach was busy paying attention to Wang Tianhui's live broadcast room and Weibo, while Wang Tianhui was cleaning up the fishing boats parked at the pier at home.

The two yachts hadn't returned to Sea God Island, and the tourists were impatient, so they had no choice but to drive their own motorized fishing boats to sea.

Fortunately, the sea is calm today, and the electric fishing boat can also have the same effect as a yacht.

"Tianhui, can you go there with a fishing boat? I don't know how far it is, what if there is a storm on the way?" Xu Wenshan asked with some concern.

"No, don't worry, I checked the weather forecast last night, and there will be no strong winds at sea for the next three days." Wang Tianhui said.

Xu Changshan snapped, "Do you believe the weather forecast? I think you'd better be careful, or I'll go with you, and the two of you will have someone to take care of you."

"I'll go with Brother Tianhui."

At this time Liu Xiaozhu came over, carrying a pannier filled with food and water, she took Wang Tianhui's cell phone without any explanation.

"Xiaozhu, are you going? You are a girl's house..."

Before Xu Changshan could finish speaking, Liu Xiaozhu interrupted him and said, "What's wrong with the girl's family? I'm also a son of a fisherman, and I'm no worse than a man like you at sea. Besides, I'm brother Tianhui's live broadcast assistant. This is my job." !"

Liu Xiaozhu's words were sonorous and forceful, but Xu Changshan didn't know how to refute.

"Okay then, I wish you all the best of luck!" Xu Changshan held back for a long time, really unable to think of a reason to refute.

"Sister Xiaozhu, come on!" Tian Xiaowei didn't shout to follow this time.

It seems that my mother taught her well, telling her not to be a light bulb when Wang Tianhui and Liu Xiaozhu were together, this little girl actually remembered.

(End of this chapter)