In winter, because the sun's direct point is in the southern hemisphere, the sky in the northern hemisphere generally gets dark faster than in other seasons. (Don't say that I write hydrology like this, I didn't write about the northern and southern hemispheres last time...)
Just after four o'clock in the afternoon, the sky began to get dark.
Da da da--
at the same time.
Carriages slowly drove in from outside the town of Cambridge.
These can only proceed after passing the joint inspection by Cambridge University rangers and royal guards.
Finally arrived outside the specially designated parking lot of Trinity College.
There is an auditorium standing on the side of the parking lot, which is a venue set aside by Cambridge University for guests to rest.
At this moment.
On a lawn near the parking lot.
"Classmate Luo Feng."
Looking at the parking lot that was gradually filled with carriages, William Whewell couldn't help but show a hint of nervousness in his eyes. He turned around and said to Xu Yun beside him:
"Student Luo Feng, the University of Cambridge has invited hundreds of members of the Royal Society to attend this time. You should know what this means, right?"
"The school trusts you so much, so you must not make any mistakes."
Compared with William Whewell's confusion, Xu Yun's expression was much more relaxed:
"Don't worry, Mr. Whewell, haven't the analytical engine and Fat Fish Interferometer been inspected several times by the school?"
"There is no problem with these two things. Even if we do not find Planet X or the third experiment fails, it will not affect the image of Cambridge University at all."
"Besides, if nothing else, I am quite confident about the third experiment."
William Whewell was silent for a moment when he heard this, and then nodded slightly.
really.
As Xu Yun said.
The school directors have repeatedly verified the two sets of equipment mentioned by Xu Yun, and can be sure that they can perfectly achieve the expected results.
Although Xu Yun has not disclosed the equipment of the third experiment to the school, the analytical engine and the Fat Fish Interferometer alone are enough to make Cambridge University invincible tonight.
Without this guarantee, Cambridge would not have the confidence to invite so many top leaders to watch the experiment.
In addition to hundreds of members of the Royal Society.
Big figures from Italy, Germany, and the Gallic Academy of Sciences were also invited.
This is also one of Xu Yun’s purposes:
Since we have promised to overthrow the physics building and scare out those old-fashioned heart patients, how can we do such a thing secretly?
The International Exhibition will end in two days. Out of respect for Prince Albert, more than 90% of the scientific leaders have gathered in London.
So in terms of itinerary.
These big guys only need to rent a carriage and drive slowly for four or five hours to reach today's experimental venue.
It can be said to be a piece of cake.
And among these people.
Many of them are pressure boys who constantly put pressure on Aveline...or pressure me.
Xu Yun thoughtfully prepared doctors and nitroglycerin for them. If they couldn't be saved, the choir and pastor of the campus church would be on standby at any time.
If your status is high enough, you can even settle down on the Cambridge campus with standard one-stop service.
...
William Whewell, as the Dean of Trinity College and one of the invitees to this event, will inevitably come out to receive guests from all walks of life tonight.
Therefore, Xu Yun took the initiative to leave after chatting with him and came to the main venue of tonight's experiment——
A huge open space.
At this moment.
This open space is divided into three areas: small, medium and large.
The smallest area is to the right of the clearing.
In addition to the 'Tatara' telescope that was used on Pluto's night and was now equipped with the Schmidt telescope principle, there is also a huge analysis machine.
However, compared to the semi-finished equipment at the original expo, the analytical machine in front of Xu Yun was undoubtedly much more eye-catching.
The first thing that catches the eye is a display screen, about 20 inches in size.
This screen, which may seem rather rustic from the perspective of later generations, was a rather high-tech product at this point in time.
Its core principle is cathode ray imaging - do you remember the several dark areas that appeared in the cathode ray experiment? This is the principle used.
There is a cathode ray gun inside it. After receiving the signal from the host, it will emit cathode rays of different magnitudes according to the strength of the signal.
These rays hit an array of tiny blue, green and red phosphorized dots on the left side of the screen.
After starting up, the beam will be emitted horizontally row by row.
When the phosphorized dots are hit by a beam, they glow, thus creating an image.
This is a low-power and inefficient display that can only feed back the final number, forget about other images.
Placed behind the screen are two giant devices about five meters high, similar to later water towers.
These two 'water towers' store more than 800 512-word acoustic mercury delay line memories, which can perform fast multi-bit serial calculations.
for example.
For the set of twenty digits calculated by Babbage and others at the World Exposition a few months ago, this computer only needed 1.2 seconds to produce the result.
This speed is thousands of times worse than the 10^-18 seconds of later generations, but it is much faster and more accurate than human power.
In Xu Yun’s arrangements tonight.
This equipment will replace the functions of the Pluto Night calculation team and verify the astronomical data observed by various countries in the past year.
Of course.
Based on the principle of not using for nothing, Xu Yun still retained the original tool masters and asked them to serve as candidates for re-inspection.
Anyway, you don’t need any money, so you can just use hundreds of millions of points as you like.
In the left area of the analysis engine, there is a Michelson interferometer - in this timeline it should be called the Fat Fish Interferometer.
The two light arms of the interferometer are both more than 12 meters long, and the lenses and refractors are also placed in corresponding positions.
The interferometer and analysis machine are both in standby mode at this time and can be put into use at any time.
Immediately to the left of the interferometer...
It is an extremely flat rectangular open space.
The length of the ground is about 100 meters, and the width is about 50 meters.
At first glance, the area of this open land is probably not less than 5,000 square meters.
In order to clear out such a flat land, William Whewell even found someone to clear a piece of grass into a clearing. In later generations, at least it would be rounded off by environmentalists to the extent that it would destroy an area of 700 to 800 square kilometers of Brazilian rainforest...
...
At this moment.
Lao Tang, Xiaomai and others were leading the members of the Gewu Society to carefully lay something on the flat ground.
Looking at this open space, Xu Yun's eyes were vaguely misty.
In terms of steps, there are actually four things they have to do tonight:
1. Display the analysis engine.
2. Searching for the real ninth planet X.
3. Conduct the Michelson-Morley experiment to deny the existence of ether.
4. Complete the electron interference diffraction experiment.
Among them, points 1 and 3 have been mentioned above and have been tested by Xu Yun and even Cambridge University.
As long as 1 and 3 are taken out, Cambridge University will not be embarrassed tonight. The worst description can be described as "a fly in the ointment".
In later parlance, this is the so-called guarantee.
As for the second point about finding stars...
To be honest, Xu Yun didn't know much about it.
After all, even in 2022, the scientific community will not be able to discover the possible existence of Planet X.
Scientists can only use the orbit records of other planets to speculate that there is a gravitational source that is much larger than the earth, but far lower than the star.
Compared with 1 and 3 that have become established facts, it is also an uncertain event 2.
Xu Yun's greater focus is on...
Event 4 on.
Precisely.
It is a tool that will be used in event 4.
The emergence of this tool will probably have no less impact on the scientific community than the photoelectric effect and X-rays.
Think of this.
Xu Yun felt a sense of excitement in his heart.
Now this timeline has been turned into a mess by myself, plus this thing that will appear tonight...
It’s so exciting...
"Luo Feng."
And just as Xu Yun's mind was racing, Aveline walked over from a distance.
Today, this girl is wearing a white dress, and her face is still smooth without makeup, showing a sense of youthful beauty.
But I don't know why.
Xu Yun always felt that the girl's dress today seemed like she was just having fun...
Ahem, I’ve thought too much. I’ve thought too much.
Xu Yun quickly dismissed the entire thought from his heart and looked at Aveline again:
"Good evening, classmate Aveline, didn't you go to meet those important people?"
Aveline shook her head and handed an apple to Xu Yun:
"I ran away - every time I met they were scolding me, why should I stay there?"
Xu Yun took the apple, put it to his mouth and took a bite. While chewing, he asked:
"That's true... By the way, how much pressure have you put on me today?"
Aveline was already familiar with these words coming out of Xu Yun's mouth. Hearing the words, she looked towards the parking lot and twitched her eyebrows slightly:
"I didn't count them, but they must be at least forty or fifty. Hey, have you seen that person?"
Xu Yun took advantage of the situation and looked around.
They saw a middle-aged man in his forties being helped out of the carriage dozens of meters away from them.
Next to the carriage stood another middle-aged man with a hint of respect in his smile. Xu Yun knew this man, and he was the dean of King's College at the same level as William Whewell.
"Huo'er, this standard is quite high."
Xu Yun took another bite of apple and looked at the middle-aged man with interest:
"Looks like he's a big shot?"
Aveline nodded slightly:
"Well, his name is Christian Doppler, and he was the one who scolded me the most when I skipped class."
Xu Yun was slightly startled.
Christian Doppler?
Good guy, this is really a big shot.
Doppler is a typical scientist with little output but great contribution. His most famous achievement is...
Doppler effect.
Many people may not understand the term Doppler effect, but they must have heard of it at some point.
Its main content is actually very simple, just one sentence:
The wavelength of an object's radiation changes due to the relative motion of the wave source and observer.
But what’s interesting is that this is a phenomenon that holds true at both macro and micro levels.
For example, when an ambulance is approaching, the sound you hear is higher than before, but when the car leaves, the sound is lower than before. This is the Doppler effect.
And in the original history.
Because his research directions are also optics and astronomy, Doppler has always been a very pure Newton fan.
For example, he once wrote in a letter to his wife:
"Although I love you in this life, if I were born in Newton's era, I would be willing to change my X-orientation for him."
So in this copy.
It’s not surprising that Doppler’s attitude towards Aveline has become somewhat dark.
in the coming time.
Xu Yun regarded the apple as a melon, and while nibbling on it, he got to know a lot of people who had been pressuring Aveline for a long time:
"That's David Brewster...the man who named Brewster Point..."
"The one who looks very happy is called Wilshere Kennedy (real person)... Luo Feng, why are you staring at his head?"
"That was Jean-Baptiste Biot, a Gaulish man who discovered the optical properties of mica..."
Aveline introduced many 'enemies' eloquently, including some big names in the scientific community, as well as some less famous contemporary civil scientists.
Another thing that Xu Yun found very interesting was.
Every time she mentions someone, Aveline, the ATM girl, will recite their comments about her in detail, obviously she has been holding grudges for a long time.
But as I watched, the atmosphere at the scene suddenly became solemn.
A few seconds passed.
"Uuuuuu——"
There was a sound of ritual music playing in the distance.
Aveline listened for a while, her eyes suddenly condensed, she quickly stood up and tugged Xu Yun's sleeve:
"Royal Ceremony, it seems that His Majesty has arrived! I am the only descendant of Newton's ancestors, so I must be present at this time!"
Aveline pulled Xu Yun along and trotted all the way, and soon arrived at the outskirts of the grassland.
A few minutes later.
A four-wheeled carriage drove slowly from a distance.
The carriage is wrapped in expensive and exquisite silk on all sides, and the windows inlaid with gold and treasures are covered by a curtain of light blue crepe. The frame is golden and extremely luxurious.
William Whewell and other senior officials of Cambridge University stood respectfully by the auditorium, with invited guests standing behind them.
In some concierges.
Xu Yun saw George Beadle Airy, director of the Greenwich Observatory, and Archpriest Jojoll Yamcha, whom he had met at Westminster Abbey.
Also Tennyson, Harvey Clement, Rossetti, and...
Tian Caiming was following a middle-aged man Xu Yun didn't recognize who was standing in the front row.
"Hey, classmate Aveline."
Xu Yun calmly touched Aveline with his elbow and asked in a low voice:
"Do you know the man with the white beard standing three to the left behind Dean Whewell?"
Aveline raised her head and glanced in that direction twice, and quickly replied:
"You name him, his name is James Bruce."
"James Bruce?"
Xu Yun repeated the name and frowned slightly.
Do not know why.
He always felt that this name seemed familiar, but he couldn't remember the identity of this person - after all, he was not a history major.
And just when he was about to inquire about the other party's identity, the royal carriage happened to stop at the scene.
So Xu Yun had no choice but to give up this idea, lowered his head like everyone else, and performed the chest caressing ceremony.
Click——
After the carriage was stable, the carriage was quickly opened, and Albert walked out in formal attire.
A uniform voice suddenly sounded from the scene:
"I have met His Majesty!"
Prince Albert waved to everyone, looked around, paused briefly after his eyes came into contact with Xu Yun, and nodded lightly.
The meaning is obvious:
Luo Feng, let’s watch your performance tonight!
Then Prince Albert turned around and followed William Whewell and others into the auditorium.
Aveline took advantage of Doppler and others not noticing her and quickly left the scene with Xu Yun.
.......
About an hour passed.
The sky turned from dim to pitch black.
Xu Yun, who had nothing happened in the past hour, took Aveline to the analysis machine and met Gauss and others.
It can be clearly seen that Gauss's spirit is much weaker than a year ago.
The whole person looked sickly, and he even needed Riemann's help to walk.
This is an inevitable situation that will be encountered at the end of life. Even if Xu Yun is a descendant, he cannot violate this rule.
But Gauss's eyes were still bright. He had been preparing for today for a long, long time.
Under the stars.
The prince of mathematics put his hands behind his back, broke away from Riemann's support, and looked at the sky alone:
"The tenth planet..."
Gauss murmured some words that Xu Yun could not hear clearly, and his eyes were deep.
Then Gauss took a deep breath and said to Xu Yun:
"Luo Feng, are you ready?"
Xu Yun nodded heavily:
"certainly!"
Then Gauss once again declined the support of Xu Yun and Riemann, and slowly but firmly walked towards the center of the field.
at the same time.
Many big shots watching the experiment also took their seats, sitting around Prince Albert on the seats prepared in advance by Cambridge University, and spoke in low voices.
There is expectation in it.
Also suspicious.
There is also disdain.
The students stood on the other side of the open space and joined in the fun in an orderly manner.
After all preparations are completed.
William Whewell sent someone to inform Xu Yun that the experiment could begin.
Xu Yun looked up at the starry sky and walked quickly to the analysis machine.
