"Sextant, sand sculpture doesn't even know the sextant?"

"You're awesome, you know everything. ”

"I'll do it, I'll do it. ”

"Okay, I've found it, start sending barrages, let's take a look at it yourself!"

"When you finish sending the barrage, Fan Ye will finish telling us, but I feel that it is the guy on the sailboat, the thing in his hand!"

"Isn't that the steering wheel? I look a little like the guy unscrewed out of the cab. ”

……

"Didn't Master Fan just say that?"

All of a sudden, in the face of the discussion of the sextant, the barrage army was also a group of discussions.

"Well, well, I'm going to give you a brief popularization here, to put it simply, if you want to stay in the direction and not get lost, knowing and using a sextant is as important as eating and drinking on land. ”

Chen Fan explained like this, and then continued to say in detail:

"A sextant, as explained by the term, is an optical instrument used to measure the angle between two distant targets. It is usually used to measure the angle between the sun or other celestial bodies and the sea horizon or horizon at a given time, so that the latitude and longitude of the position of a ship or aircraft can be quickly known.

The principle of the sextant was first proposed by Newton and then invented in the 17th century.

That is, the thing in the hand of the stupid big man, the material, generally choose wear-resistant, corrosion-resistant and fall-resistant to do, all kinds of things.

The sextant has a fan-shaped shape and consists of a small telescope, a translucent and semi-reflective fixed plane mirror, the horizon mirror, and an active mirror linked to the indicator, the indicator mirror.

The scale arc of the sextant is 16 of the circumference.

When used, the observer holds a sextant and rotates the indicator mirror so that the celestial objects that appear at the same time in the field of view coincide with the sea horizon.

According to the rotation angle of the indicator mirror, the altitude angle of the celestial body can be read, and its error is about ±0.2°~±1°.

In the field of view of the aeronautical sextant, there is a level that replaces the horizon.

This sextant generally has a reading averaging mechanism, and the sextant is characterized by its lightness, which can be observed on a swinging object such as a ship.

The disadvantage is that when it is rainy and rainy, it is almost a decoration, and it can be put into use normally at other times.

For a long time, although science and technology have continued to develop, and more advanced radiopositioning methods have been developed, sextants are still widely used. ”

After saying this, Chen Fan paused for a moment, and then beckoned to the onlookers:

"Okay guys, now, you watch first, I'll help clean up this matter first, I've been forcing him for a long time, let me convince him. ”

There is no way, at this moment, Liu Ming is still shouting on the boat, especially after there are two more beauties around him.

Besides, now the three of them are condescending, and Chen Fan has only a burning stick in his hand, which has to deal with the three people on the boat, as well as kitchen knives, frying pans, and even cutting boards.

Liu Ming, the odds are decided.

"Boy, who are you~ Tell us, what are you doing here!"

"That's it, handsome guy, what are you doing here, are you a fisherman here?"

Liu Yan, who is a self-proclaimed celebrity, stepped out and looked at Chen Fan wearing a t-shirt, bronzed skin, arms, and walking steps, this is the performance of a very strong person!

"Oh, do you look at me like a fisherman?"

Chen Fan showed a mouthful of white teeth, and the Mandarin of the provincial and Taiwanese standards.

"Yes, then you should be a college student, or an expert, and come here to do scientific research. ”

Liu Yan stroked her hair, revealing a long and white neck, and handed Qiu Bodao to Chen Fan again and again.

"Swallow, why are you talking to him so much! I don't think he's a good person, don't talk nonsense with him. ”

Zhang Xuejuan squeezed her best friend's arm with her arm and said.

"That's it, we're going to fight the same enemy now, Xuejuan, go get the fire extinguisher, and I'll deal with this kid. ”

Seeing Chen Fan standing still and not moving, Liu Ming felt that he must have suppressed the other party.

At this time, it is not the time to show his domineering spirit, when will it wait?

"The surname Liu, I said it three times, you can't come down yet, right, you wait, don't blame me for not helping you then, who are you Xiuxiu?"

"Xiu...... Xiuxiu, isn't she our eldest daughter~ Handsome guy, how do you know Xiuxiu. ”

"yes, who the hell are you! ”

Liu Ming got the fire extinguisher, slipped down the gangway skillfully, and stood on the ground.

It was Liu Yan and Zhang Xuejuan who were still standing on the deck.

"I said you're all Martians, and you've never been a keyboard warrior online?"

"What...... What keyboard warriors, we are all good boys. ”

Liu Yan deliberately closed her neckline and replied.

"Does this have anything to do with whether or not you are a good child? Live broadcast, short video, fighting sound, do you know about betta live broadcast?"

Chen Fan was really speechless, and he was very helpless when he encountered such a group of people who didn't know him.

"Whether it's passers-by who don't go online, or keyboard warriors who stay at home and don't go out. ”

"What are you muttering, kid! When you're a big star, why do we know you, but you, do you know who I am?"

"Who are you?"

Chen Fan rolled his eyes at the other party and said.

"I'll tell you, I'm an athlete, a second-class athlete in Island Province, a former official member of the provincial team sailing, and now the chief coach of the Xiubing Sailing Base in Sanhai City, we are all sailors, you know?"

The more Liu Ming spoke, the more confident he became, and he looked at his girlfriend on the deck from time to time.

"Uh, it's over?"

"What's the end, stinky boy, we are playing advanced sports, you see through it so broken, black and swarthy, you must be a fishing Tanka cub, or a little fisherman with little culture, if you know each other, help us find something to eat, and I will give you money when I turn around." ”

"Liu Ming, don't talk about people like that. ”

At this time, the two girls also slid off the sailboat, and Zhang Xuejuan heard her boyfriend's words, and her face wrinkled slightly.

"I'm sorry, handsome little man, can you tell me, who are you? What are you doing here, are you running around, or the life you yearn for?"

Liu Yan usually cares a lot about gossip and entertainment, so when she sees Chen Fan, especially his height of more than one meter and eight, burly and his speech is so clear and standard, he doesn't look like a local fisherman at all.

"You're Liu Yan, your boss is in trouble with you. ”

Chen Fan threw his Redmi 7 into Liu Yan's hands and asked her to read the background information by herself.

When you see the betta fish, you see yourself under the drone camera, and then look at the popularity, as well as the barrage and gifts that are constantly brushed.

Liu Yan's face is getting worse and worse!

"Well, you know who I am!"

Chen Fan stopped for a minute and looked at Liu Ming, who was still holding a fire extinguisher and was about to fight him.

"Well, I remembered, I brushed your douyin a while ago, when you were in the Grand Bazaar of Tianshan Province, and then you told you a live story, telling a great sage about the return of a great sage, right. ”

"Yes, you are Fan Ye, the Fan Ye who does wilderness live broadcast outdoors for betta fish. ”

Zhang Xuejuan finally covered her mouth and looked at Chen Fandao.