Conan: The Mechanic

Fall in love with youkanshu.., update the latest chapter of Conan: The Mechanic as soon as possible!

(Well...help a certain coffee bean push a book...the name is "Author's Apartment Life"...Actually, I don't really want to push it, but I have to push it...so...I declare in advance that the Matsudaira Slime in it character does not represent my character!!!)

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"What kind of astronomical phenomenon are you trying to observe with such a large telescope? Sister Sonoko never told me what she was looking for, but said it was an astronomical spectacle." Mitsuhiko asked curiously. "Do you want to use this to observe meteor showers?"

"Sumek Levi?" Qianyu tentatively put forward this answer. "Anyway, if it is an astronomical spectacle, this is the one that attracts the most attention during this time period."

"That's right," Suzuki Jiroji nodded with a smile. "That's it - that's why I have to build such an astronomical telescope on an airship, and you and I will be the luckiest people on earth to observe this space necklace for the first time!"

"Space necklace?" Yuan Tai asked curiously. "What is that, a necklace?"

"Sumek Levi? Space necklace?" Mitsuhiko seemed to remember something. "Wait a minute, is it a string of meteorites like a necklace? I seem to have seen it in a picture book before!"

"shoemaker-levy9," at this moment, a middle-aged man in a suit suddenly appeared on the other side of the telescope, speaking in a rather cheerful voice. "As you said, Shoemaker Levi 9 is called the Space Necklace because it has shattered into a long string of fragments."

The middle-aged man walked up to everyone and introduced himself to everyone after saying the previous sentence. "My surname is Okita, and I am a member of the Tokyo Observatory's Astronomical Object Search Department. This cooperation with the Suzuki Foundation is precisely for the observation of Sumei Kelevy."

"He's amazing," Suzuki Jiroji took over his self-introduction. "His teacher is Mr. Koichiro Tomita, who can almost be said to be one of the pioneers of professional astronomical observation in Japan."

"Why does it shatter into a long string of fragments?" Yuan Tai asked again. "Could it be that this Shoemaker Levi was hit by something before, so it shattered?"

"This question..." Okita showed a subtle expression, and then looked in the direction of the telescope. "Honda, tell them after the maintenance."

"Okay!" From the astronomical telescope came the voice of a young man who was much younger than Okita.

"Then I, I have to go first," Okita turned his head back and said to the children. "Honda over there will explain these things to you, and now I need to go back and sort out the data that may be needed for the observation."

...

Honda is a young man in his twenties, so he is much more lively than Okita, and his interactions with Chiba are also much more active.

"Shoemaker Levi was discovered on March 24, 1993 by a man named shoemaker and a man named levy at the same time, and on March 27, they announced this exciting information."

"What's interesting is that in that photo, they found that the comet seemed to be a little different -- the comet pulled out a very long afterimage," Honda continued after comparing it with his hands. "Eventually they found that it should be a long necklace of fragments from a comet."

"But why did this comet shatter?" Mitsuhiko asked. "Did you get hit by something?"

"Besides being hit, there are other forces that can shatter this comet," Honda smiled and shook his head. "Through scientists' reconstruction of the comet's orbit, they believe that the comet has been orbiting Jupiter, and it is very likely that it came very close to Jupiter on July 7, 1992, maybe only about 40,000 kilometers- - You must know that Jupiter is a big guy with a radius of 70,000 kilometers, and for it, 40,000 kilometers is already equivalent to passing by."

"Forty thousand kilometers..." Yuan Tai was a little at a loss. "It seems to be quite far..."

"It's close enough," Qian Yu glanced at Yuan Tai. "For a pass by Jupiter and a comet, 50,000 kilometers or less is close enough."

Honda looked at Chiyu with a somewhat surprised look, and a smile appeared on the corner of his mouth.

"Why?" Yuan Tai was confused.

"Roche limit," Chiyu replied. "Simply put, if a small planet, such as Shoemaker Levy, passes near a large planet, such as Jupiter, if Shoemaker Levy enters the Roche limit of Jupiter, then Jupiter's Shoemaker Levy would have a strong enough attraction that the whole Shoemaker Levy would be torn apart.”

"Why was it torn apart?" Yuan Tai probably understood what the Roche limit was, but he still didn't understand the true meaning of it.

"You know about gravity, right?" Qian Yu sighed and started explaining from a more basic aspect. "There is a very weak gravitational force between even two small objects - even just two plates."

"Now ask, if I stack two plates on top of each other and pick up the top one, will the bottom one be pulled up by the gravitational force of the top one?"

"No," Yuan Tai said without hesitation. "Because the gravity is too low."

"That's right," Qianyu nodded. "Earth is very close to the two disks, so the gravitational force is strong enough to suppress the gravitational force between the two disks. But what if the two disks are not on the ground, but in space? In space, the Earth's gravitational force is almost zero."

"That is to say, if you are in space, if you pull one of the plates in a certain direction, the other plate will also be attracted to it?" Yuanta frowned and seemed to understand something.

"That's right in theory~www.readwn.com~, but in practice it's unlikely, because the plate is too light to generate gravity," Qian Yu replied with a smile. "But it's almost the same - Shoemaker Levy is the two plates, and Earth is the equivalent of Jupiter. And the reason why Shoemaker Levy was torn apart is because within the distance of the Roche limit, his own production The gravitational force that can be used to hold all of its matter together is less than Jupiter's pull on that matter, so Shoemaker-Levy was torn to pieces."

"Then what is the Roche limit?" Mitsuhiko asked. "What did you mean when you said that within 50,000 kilometers is close enough?"

"There is a formula for the Roche limit, but when I tell you the formula, I feel like you don't understand it..." Qianyu showed a somewhat tangled expression. "It's probably like this. The greater the density of the big planet and the smaller the density of the small planet, the greater the range of this Roche limit. If you bring in the data of Jupiter and Shoemaker Levy, this distance is from the center of Jupiter. At the beginning of the calculation, it is about 1.75 times to 3.4 times the radius of Jupiter, which means that in any case, the Roche limit will not be less than 1.75 times the distance from the center of Jupiter, which is 122,500 kilometers."

"In other words, the Roche limit distance between Jupiter and Shoemaker Levy will not be less than 52,500 kilometers, and Shoemaker Levy has entered this range on July 7, 1992, and being torn is inevitable."