My Girlfriend Didn’t Listen To The Advice And Sent Her To Northern Myanmar For Further Study.

Uptown Planetarium, Astronomy Summit Live Broadcast Room.

"...Then I would like to ask Mr. Gan Chongzhi, as the discoverer of the asteroid, why did you choose the word 'nian' to name it?"

"I've explained this many times."

When asked this question again, Gan Chongzhi, who is over 70 years old, felt helpless and tired: "First of all, of course, it is because the time when it reaches its maximum perigee, according to calculations, happens to be at the junction of the old and new years, which is also the time of our lunar calendar. New Year’s Eve at 24 o’clock.”

"anything else?"

"Second point, the significance of asteroids to the entire human race is like entering a new era. This is the first time that humans have such close contact with other ancient planets. The mineral components we extract from the planets will help humans Understand the universe more deeply, and even discover the cause of the universe and the origin of the earth."

"I heard that the probes sent by various countries have returned to Earth. What are the research results?"

"this……"

Gan Chongzhi looked ashamed: "Unfortunately, all the detectors malfunctioned and were unable to return. We all underestimated the degree of storm activity on the surface of the asteroid. It is much more serious than what was observed by the Webb Space Telescope. Our There was an error in the calculation."

"Have you found the cause of the error?"

"Still looking."

The Astronomy Summit has two stages. In the first stage, representatives from various countries freely exchange academic results.

The second stage is to conduct live interviews and answer questions from the audience.

The first phase is over and now comes the second phase.

The studio shots are clever, with the camera facing the host and astronomy academician Gan Chongzhi, the discoverer of the asteroid.

The "year" is suspended in the night sky above between the two people, and is also framed in the lens.

The dreamy and magnificent long tail makes people unable to take their eyes away.

Gan Chongzhi is a bit reserved. As a researcher who is used to quietness, he doesn't like crowded environments, and he doesn't like to appear in the view of too many people and be judged by others.

Especially the host's questions were so unhelpful that he already wanted to run away.

The host also realized that Gan Chongzhi was restless and quickly entered the next link.

"Now we are entering the audience question session. There is a little girl over there who has been raising her hand for a long time. Please invite this audience member to be the first to ask a question."

"Mr. Gan Chongzhi, there is one thing we cannot understand:

The previous Hubble Space Telescope could already observe galaxies 12.9-13.4 billion light-years away, and its observation distance far exceeded the solar system. But we only discovered the planet Nian this year. When we discovered it, it had already arrived in the solar system... Does it have any special properties that have escaped our observation? "

"The answer is simple."

Hearing such a low-level question again, Gan Chongzhi forced a smile.

"The distance you provided is data from Hubble's observation of stars, because stars can provide a large amount of visible light and ultraviolet light, and those are the wavelengths that Hubble can collect.

However, planets do not emit light, so the only way to observe planets is to use the transit method - that is, to judge whether an asteroid has passed in front of it through changes in the brightness of the star. However, this method has many flaws.

The latest Webb telescope can collect light in more wavelength bands, and its observation capabilities are far better than Hubble. Only after the Webb Space Telescope was launched did humans have the ability to directly observe distant planets. This is how Nian was discovered. "

"Thank you for clearing up the confusion."

After getting the answer, the spectator sat down with satisfaction.

Then the host selected the second, third, and fourth audience member...

Each of those questions became more amateurish than the last, which made Gan Chongzhi gradually yawn and start to feel sleepy.

Suddenly, a voice came from the auditorium.

"Mr. Gan Chongzhi, if the asteroid exceeds the Roche limit and is torn apart into the Earth's star rings at its maximum perigee, what impact will it have on the Earth?"

What kind of sand wall problem is this? Gan Chongzhi raised his head speechlessly. This question was less professional than the previous ones.

The host quickly stopped: "Sir, please ask questions in order. This round of questions has not started yet."

Su Yun'an's arms were numb, but the host just pretended not to see him.

Su Yun'an seriously doubted that Lao Gao had said hello to the host in advance because he was afraid of causing trouble.

But he couldn't wait any longer and was waiting for the live broadcast to end.

"Mr. Gan Chongzhi, have you ever calculated the Roche limit of an asteroid?" Su Yun'an ignored the host and continued to ask.

The corner of Gan Chongzhi's mouth raised: "Of course, we have calculated it. First of all, it cannot exceed its Roche limit. Because even at its maximum perigee, it is 1.5 million kilometers away from the earth. The earth's gravity is not enough to capture it, let alone Said it was torn into pieces.”

"Then the question is, how do you judge its density? How do you judge its mass?"

"It's very simple. Calculate the mass based on the degree of interference of its flight orbit by Jupiter, and then calculate the density based on the size."

"So what's the magnitude of the interference?"

"Close to 0, which means that its mass is very large, so it was not disturbed by Jupiter when it was close to Jupiter. From this, its minimum mass can be calculated. Then its minimum density is calculated based on the minimum mass, and the minimum density is obtained From now on, we can get the minimum Roche limit at which it is torn apart by the Earth.”

"So, it's all just estimates, right?"

"No one can give a definite answer, but my calculation method is definitely correct, and we can be absolutely sure that the earth is safe."

Gan Chongzhi's answer was very firm and confident, which stemmed from the knowledge he had accumulated over the years.

He can take 100% responsibility for this answer, and if anything goes wrong, he will be solely responsible for it.

"Then here's the question," Su Yun'an smiled, "What if the mass of this planet is zero?"

"puff--"

"Ha ha ha ha--"

"Wow——"

The whole live broadcast hall burst into loud laughter, even the host who was trying hard to control his appearance did not hold back.

Except for two people.

One person is Su Yunan.

One is Gan Chongzhi.

"Sir, pfft... I'm sorry, I just couldn't help it," the host tried to be serious, but his voice still trembled because he couldn't hold back his laughter, "We all know that the mass of such a large planet cannot be zero. What you said is counterintuitive."

After all, it was a live broadcast, so her language was very restrained and she did not call Su Yun'an a psychopath on the spot.

"Assuming that the mass is zero, according to the formula of universal gravitation, the gravity it receives is zero, and its orbit will not be disturbed by other planets. Its mass is zero, but it has a volume, then its density is infinitesimally small, Roche The limit is infinitesimally small – meaning it can be torn apart at any time.”

This idea is crazy.

And it’s full of loopholes!

The host immediately retorted: "Then according to what you said, such an object cannot exist at all. Its Roche limit is infinitely small, and it should have been torn to pieces by any matter."

"It has not been torn apart because it has zero mass and has not received any external gravitational influence. The prerequisite for being torn apart by gravity is that it can be subject to gravity."

This sounds like a paradox.

It is not only contrary to common sense, anti-classical mechanics, and even anti-intellectual.

"Sir, the question you asked no longer seems to belong to the category of astronomy," the host warned tactfully, "We are here at an astronomy venue, please do not ask irrelevant questions or disrupt the order..."

As soon as the host finished speaking, Gan Chongzhi suddenly raised his head.

While everyone was laughing wildly, Gan Chongzhi felt as if his sleepy brain was instantly filled with energy, and he was immediately attracted to this crazy possibility.

He likes questions that are so weird and crazy, even if they seem stupid, many new discoveries come from stupid thinking that breaks common sense.

It was also difficult for people to accept that there is no God in this world.

Of course, I like it, but science is a rigorous knowledge, and Gan Chongzhi must refute the contradictions in Su Yun'an's words.

He stood up and responded with bright eyes: "Even if it was not affected by gravity, wouldn't it be hit by a meteorite during its flight? The density is zero, and it should disperse when it touches it. And the mass is zero, and all its quantum Scattering in all directions at infinite speed. Such a thing should not exist!"

"Academician, you cannot use classical mechanics thinking to look at a group of quantum bodies, especially a group of quanta with infinitesimal mass. They are so small that they do not exist, so they will not collide with any existing matter."

"You said it yourself, they don't exist at all. If they don't exist, we should exclude them from consideration."

Gan Chongzhi seemed to end the debate with one sentence.

However, Su Yun'an just smiled slightly:

"Those detectors didn't crash, right?"

Gan Chongzhi's eyes suddenly widened.