Half-immortal civilization

Time is not based on human will; although Yang Qinyun feels very uncomfortable, time still moves forward firmly!The day of glory is fast approaching!

Early in the morning on May 5st, Yang Qinyun woke up before dawn!Cheers, cheers.Also, because the hotel said today that it is a holiday today, if the guests need help with anything - please postpone it, or you can do it yourself, the hotel's warehouse, kitchen and so on, the keys are hung on it; of course, As compensation, we don't need money today, well, we don't need money in the next two days, because we will also have a holiday in the next two days!
Looking at the empty hotel, with no service person in sight, and the warehouse door just hanging open with a key, Yang Qinyun was more shocked than a wry smile.But it made the people of the Republic have to think!
Not closing the door at night, not picking up things on the road, this was just an exaggerated metaphor and beautiful yearning left in ancient history books, but on Venus, it has been realized.But to be honest, looking at the waiters with guns on their waists, for people from the earth, the truth is very big!However, Yang Qinyun is not going to miss today's event.

As an imperial capital, Longxing City is huge in scale, and the central square is said to be a holding square that can accommodate a million people.The only pity is that the empire has not held any military parades since its establishment until now.However, maybe people don't bother to do this at all!But now such a huge square is crowded with people.

The sun has just come out, and the square is already crowded with people, selling snacks, playing around, and occasionally you can see panicked squirrels running through the crowd.People consciously park their vehicles at the periphery and walk into the square.And in the center of the square, there are several erected antennas, which are said to be used for positioning.

Compared with other cities, the live broadcast here in the imperial capital, according to the news, will be projected directly from space, except for the problem of scale.The rest can basically guarantee 100% authenticity.To be honest, this is the first time I have heard of such a technology projected directly from space to the ground.Yang Qinyun was taken aback.Fortunately, it is said that this is only the latest development of technology, and this is the first time it is used.But this still surprises the earth people too much.

As time passed, from the scorching sun to the setting sun, the crowds were getting bigger and bigger, so that they could barely move.

When the sun goes down, a grayish-white color appears in the sky, just like the boot screen.It's just that this screen is a bit big, not to mention a radius of thousands of meters, and it is also suspended at a height of thousands of meters.But even at an altitude of thousands of meters.It still looks hundreds of meters in size, if you use one word to describe it, it is simply: cover the sky with one hand!More importantly, this projection of the imperial capital is suitable for direct projection from space!
Maybe.The only downside is that there is no sound!Also, if you project directly from space, there is no problem with the light, but there is a problem with the sound.But it doesn't matter, it can't be transmitted directly, it can be indirect.The staff on the ground have adjusted the sound in every corner of the square.

Disappeared with the last ray of light in the sky.Before the starry sky appeared, the huge projection flickered for a few moments, and then a huge spaceship image appeared!
That is the gigantic Clairvoyance space factory, 1700 meters in length.But now, even if the projection is only 1000 meters, the shock of the spaceship entering the atmosphere is still there.It also made Yang Qinyun breathless.

It seems that a real spacecraft descended at a height of one thousand meters. If it is not known in advance that this is just a projection technology, it will definitely make people who don't know why panic.It is simply blocking out the sun!Then, the camera began to zoom in quickly.When we got closer, we could even see a glass canopy with a size of [-] meters, on which the figure of the sun and a faint streamer were still reflected.

The screen switched and entered the glass cabin. Yang Qinyun saw the working environment of the imperial scientists in space, lying down, standing or leaning. Everyone has their own space for movement, with various expressions.Anyway, there is no gravity, so everyone can play whatever they want.

But as the picture zoomed in, Zhang Wenliang's figure gradually appeared.Zhang Wenliang's clothes are still plain, and if you look carefully, you can even find that they are a little white; Dongfang Xiaoyun next to him is still beautiful and charming, wearing white clothes like a fairy.Sharp-eyed people even discovered that Zhang Wenliang's clothes were from last year!

"Hello, citizens of the empire." Zhang Wenliang said with a smile, but the direct projection speed is faster, and the sound on the ground will only be heard after the greeting.

"Long live Your Majesty..." I don't know who started it first, but people almost sent their blessings from their hearts.This is not an affectation, but a real cry from the heart!

"I'm sorry, but due to various reasons, the information transmission here is one-way, and I cannot see or hear the voices of citizens. Everyone, please listen to me.

First, our great and lovely scientists are working overtime while we are all resting.For that, let us thank them.It is them that give us the life we ​​have now.

In addition, it is the problem of the launch of the Starry Sky Cannon.Before, someone told me that such an advanced experiment may fail.If it was broadcast live, failure would be a blow to the majesty of the empire.It is best to render the successful plot and release it after it succeeds.

But I denied it.I think that, whether it succeeds or fails, this time is our first step into the universe.It is gratifying to succeed, but we continue to work hard when we fail.We are not afraid of failure, but we are afraid to face failure!
Nothing never fails, not even a star cannon that has been checked a thousand times cannot avoid this problem.I can only say that even if it fails, it is a proof of our unremitting efforts; at worst, we start all over again!If we can do the first, we can do the second!The Clairvoyance Space Factory is always on call!

Also, the empire's progress to the present is not the result of the efforts of one or two people, but the result of the joint efforts of all.Therefore, I think this moment of historical commemoration belongs not only to the empire and scientists, but also to every citizen!
We like success, but we are not afraid of failure!In half an hour, we will usher in the peak moment of human history, let us wait and see, and pay attention to this miracle that belongs to all of us! "

"Long live... Long live..." People shouted wildly, with passion and fighting spirit shining in their eyes.Yes, even if it fails, it is our most precious wealth!To go into space, be prepared to fail.therefore.We are not afraid of failure!We refuse to be afraid of failure!
Half an hour is not long, and during this half hour, everyone saw the busy figures of scientists.Under the circumstances of all eyes, they are still meticulous, carrying out the final calculation and inspection.

Ding dong... The countdown starts: 10 minutes...

The camera starts to zoom out.The panorama of the tens of thousands of kilometers of starry sky cannon was displayed in front of everyone, and there were even a few close-up shots.It's a real monster!

The video has no sound at all, because it is impossible to transmit sound in space.However, as the saying goes, silence is better than sound. In 3 minutes, the video was constantly switched, and everyone saw the complete appearance of this surreal product.One hundred thousand pairs of blades—photovoltaic cells, surrounding cables, smooth guide rails that can reflect the starry sky, some unknown and complicated components, etc.

Suddenly, a small space shuttle appeared, but this space shuttle was holding a disproportionately huge object!Above the huge mechanical arm, grabbing this 50-meter-long, but only 50-centimeter-thick thing, there is a two-meter-long blue-painted metal head.All that is left is the golden yellow tail.

But soon, there was a narrator who explained, his voice was a bit old, and his Mandarin was not very standard. To be precise, he had a strong local accent—obviously.It was a scientist explaining.

"What you see now is a space probe that is about to be sent into space. Because it uses a lot of lightweight and high-strength new materials, its mass is only 200 kilograms, and it has a small plutonium (bu) nuclear reactor built in. This is The most mature technology at present. This small nuclear reactor can work continuously and stably for 50 years, with a power of 10 kilowatt-hours. It will provide sufficient energy for the detector. And 50 years is enough to complete our goal this time.

in addition.The body of the space probe is the blue metal cabin in front, with a diameter of 87 centimeters and a length of two meters. It contains a nuclear reactor and weighs 113 kilograms in total.And the rest of the tail.It is a solar sail weighing [-] kilograms.

It is well known that the speed of light in the universe is the fastest and constant.It's just that if the object moves differently, it will produce red shift or blue shift to compensate for the speed of light.Among them, the red shift represents the decrease of energy - the object moves in the same direction with the speed of light, and the blue shift represents the increase of energy - the object moves relative to the speed of light.

The principle of a solar sail is the same as that of a sail, except that the sail uses natural wind.Solar sails use sunlight.The wind has pressure; and the sun also has pressure!

The intensity of sunlight in the orbit of the earth is about 4.8 kilograms per 5.3 square meters.And here on Venus, because the light is increased by one-tenth, every [-] square meters of natural light can produce about [-] kilograms of thrust.

In order to increase this power, we use a large number of reflectors to capture sunlight. The densely packed reflectors all over the space are for this work and preparation.We can focus a hundred thousand times more light.Of course, considering the high temperature resistance of the solar sail, in fact, we will use a thousand times the light.In other words, the light pressure after assembly is about 5.3 tons of thrust per [-] square meters.

This time, the effective area of ​​the solar sail is 7000 square meters, and it will get about 3.7 tons of effective thrust; of course, this refers to the static state.Considering that with the acceleration of the detector, the light will produce a red shift scene, further reducing the energy, there will be about 75% efficiency, and the final thrust will be about 2.7 tons.In the design, we will accelerate the detector to a predetermined speed of 0.7 times.How much depends on the actual situation.Because according to the mass-energy formula, it can be known that the greater the speed, the greater the mass; and when the speed increases, the time of the object will also change.We have never tried to make such a fast object, and the specific physical state is not particularly clear.But one thing is certain, that is, the target of this detection will be T Cetus, which is 12 light-years away. Here, according to our current astronomical observations, it has been basically confirmed that there are planets suitable for human settlement, and It is very likely that there is life.Well, everyone, please carefully observe the next event.Let me remind you, because the speed is too fast, it only takes about 0.4 seconds from the beginning to the launch of the detector!This will be the first time that everyone can intuitively feel the speed of the interstellar era.From today, the unit of speed in the interstellar age will be the speed of light.Calculated in this way by a few tenths of times the speed of light, instead of the unit of calculation such as kilometers. "

A distance of 0.4 kilometers can be crossed in only 0.4 seconds!This is an unimaginable number!Yang Qinyun just felt that his brain couldn't change anymore. 0.15 seconds, the speed increased to [-] times the speed of light!Looks like a great look!No wonder it is said that the star cannon is the representative of the most advanced technology of the empire!It looks really advanced!

The countdown ended soon, and the [-]-meter-long detector was put into the entrance of the guide rail and gently slid into the starting position.Then light blue light waves flickered, it was a super strong magnetic field and a large number of charged particles!

One hundred thousand pairs of wings have been fully spread, thousands of plasma engines started to work, slowly accelerating forward with the guide rails.But this is for the upcoming shooting. Accelerating a 0.4kg object to 200 times the speed of light within 0.15 seconds will produce a huge unimaginable reaction force.And these plasma engines are to balance these reaction forces.

Ding dong... the countdown enters 10 seconds!Everyone tensed up.

3...2...1...

Yang Qinyun was also nervous. Although this is not the technology of the Republic, we all belong to the same nation!
0! !! !!

In an instant, electric light flickered, and red, blue, purple, and invisible colors were all arcs, covering the entire starry cannon in an instant.At that moment, the starry sky cannon seemed to be transformed into a god of thunder!A Heavenly Thunder Pillar!
At the same time, a light blue halo instantly appeared at the tail, with a diameter of [-] meters, and then quickly pushed forward and expanded rapidly. It was a violently fluctuating electromagnetic field!

0.4 seconds!
As if in an instant, the '0' of the countdown hadn't disappeared, and an object surrounded by light blue electric light spewed out from the mouth of the giant starry sky, rushed into space in an instant, and even in an instant, it was beyond the range of vision.Even in the starry sky projection here, you can only see a spot of light disappearing quickly, blending into the bright starry sky, and never seeing it again.

It can be said that up to now, the audience on the ground has watched the whole process - a wonderful video of only 0.4 seconds!live!
In fact, in space, at this time, scientists can be regarded as entering the really intense work!
Ps:

Hard to code during the holidays, please ask for a ticket