Half-immortal civilization

When Zhang Jingyuan walked into the conference hall of the satellite research department, almost all the important old people in the master company were present.A middle-aged scientist was happily explaining his ideas; even Zhang Jingyuan didn't even notice.When Zhang Jingyuan came in, one-third of the progress bar for watching the video had passed.Behind Zhang Jingyuan, there were still people coming one after another.

Zhang Jingyuan had the impression that the people above were the faces of the group of experts who went to Germany before the unification of the earth.It's just that, after so many years, I have met too many people and experienced too many things. Even Zhang Jingyuan has blurred too much because he didn't deliberately memorize it.

Gradually, Zhang Jingyuan could be considered to have heard something.This is a brand-new concept of detector launch, a concept, not a new technology.But sometimes we have to say that technology is only the foundation, how to apply technology is guided by the concept!Of course, you can't deviate from the essence of technology.

But in just 2 minutes, Wang Nannan came in, followed by Li Bing, Li Guoyi's grandson, and Li Xinyu's younger brother.

"Papa..." Wang Nannan clapped her hands gracefully, and when everyone looked over, she opened her lips lightly: "Gong Chen, everyone is here, and I have seen your ideas; I don’t know. I can only trouble you to explain it again.”

"Minister Wang, it's my honor." The middle-aged man nodded slightly.

At this time, Zhang Jingyuan remembered that the person in front of him should be called Chen Xingping, no, he should be Chen Xingping's son depending on his age.Chen Xingping was an excellent welder who returned from Germany. He looked about 20 years old at the time. After more than 40 years, ordinary workers have to make some contributions even if they want to practice spiritual practice, so it is impossible to look so young; Therefore, the person in front of him should be Chen Xingping's son; but it is really similar to the face in Zhang Jingyuan's memory.

"Hello, leaders. My name is Chen Feng, and I am the son of Chen Xingping, a top welder in the empire. What I am explaining today is that we should explore places beyond the solar system in advance, 30 years, 300 years or even thousands of years in advance. Please listen to me Come together.

First of all, the solar system is huge though.But in fact, we have basically explored almost as much as these years.Except for a few planets, there is actually nothing left, it is empty.As for the dark matter that accounts for 97% of the mass of the universe, we are powerless now.

In addition, the solar system is really too small in the universe.Now that we have entered the space age.Then the next interstellar era is bound to be on the agenda.

It's just that my thinking is different from that of ordinary people, and, in my opinion, mine is correct.Many people say that Venus was built.It will take at least 30 years to build a powerful technology; therefore, some people say that we will concentrate on the development of space technology after 30 years.But I think we need to start exploring worlds beyond our solar system now.

Thirty years may be a long time, but we have gone through eight years.On the other hand, what we cannot avoid is.Super-scale space environment.Even the speed of light needs to be calculated in terms of years. Assuming that we now have an aircraft whose speed reaches one-tenth of the speed of light, it will take 30 years to reach the nearest star system, which is the Centaurus constellation.However, this is a binary star system, because the instability of the binary star system has led to such a binary star or even a multi-star system, it is difficult to have a basis suitable for the existence of life; even transformation is basically impossible.So for us.Such galaxies don't make much sense.As for mineral resources, there are Kuiper belt and Oort cloud around the solar system, and some are resource stars.So since this centaur star system is neither habitable nor terraformable, nor has the resources we need, there's no point in exploring such a place.At least.For the time being, it's pointless.

Then, the next Barnard's star is 6 light-years away from us, Woolf 359 is 7.7 light-years away, Brand 2147 is 8.2 light-years away, UV Cetus is 8.4 light-years away, Sirius is 8.7 light-years away, Ross 154 Star 9.5 light-years, Ross 248 stars 10.4 light-years.Eridanus ε star is 10.8 light years away, Ross 128 star is 10.9 light years away... Forget it, the larger the range, the more stars around.However, according to observations recently, and with clear evidence, it is the T-Cetus star 12 light-years away from us. Here we have observed a planet suitable for life, and it is basically certain that there will be life on it; the nearest Observations show that there may be clouds on this planet. After more than 2000 artificial and probe observations over the past year, it is basically confirmed that there is life on this planet; of course, we cannot determine the form of life, whether there is advanced life.What we call advanced life refers to life forms with brain tissue.

And if we want to explore the star T Cetus at close range, if we start to launch the probe now, according to one tenth of the light, it will take 120 years for the probe to arrive.Oh, this is the chronology of the earth; if we change it to Venus, then we need to wait 156 years.Then, the exploration signal needs to be returned, which is another 12 earth years.

Exploring the starry sky, the author is lazy, ahem... In order to unite the unit, we still use the earth's time unit.After all, there are too many interstellar observation data on the earth for a hundred years, and it is inconvenient to change the unit.Moreover, it can be foreseen that with development, future star time will inevitably vary, and we need a standard now.

In addition, in terms of communication, we still have a weakness. The superstring communication device in space is only effective within a maximum range of 15 billion kilometers, and this obviously does not have much effect in the universe that is often measured in light years.If we want to enter space, we must have more advanced communication technology.In other words, set up base stations for superstring communication devices in space.Still, I did the math and the cost was enough to break us down.About 8 million base stations need to be erected within a light-year to barely line up to transmit information.Based on the calculation of the cost of the near-earth base station at 1000 million, the cost price is estimated to increase by 1% for each point farther away, then the final figure, I am sorry that I did not calculate it, because it has no meaning.Anyway, tying the Earth and Venus together is not enough to cover the cost.Well, it should be about 500 billion yuan.

Of course, today I am not talking about communication technology, but rather.We should explore now.The scale of space is too large, we must plan for the next hundred years and millenniums a hundred years in advance!

In space, not inside the planet, the plane starts and arrives in a few hours.In space, any temporary plan is too late!You know, even if we travel to the constellation Centaurus.Calculated at a speed of one-tenth of a light-year, it would take 42 years for a one-way trip!If we make temporary plans, the transmission time of information will take 4.22 earth years, and it will take about 8.5 years for us to receive feedback again!At this time, any plan is useless!

so.I think we should start planning for the future now.So I designed a detector launcher.The technologies used are all our existing technologies, and some of them are even borrowed from other people's labor results.But I can only say that this is currently the cheapest and most feasible method of interstellar exploration.

First of all, according to the mass-energy formula m=m÷(1-v^2÷c^2)^2, it can be known that when the speed of an object is close to the speed of light, the greater the speed, the greater the mass.The reason for this is still unknown.It should be the advanced cosmic law at work.

According to my rough calculations, an interstellar exploration probe must have powerful capabilities—and modern times still use electricity.Therefore, I recommend the use of tiny and mature nuclear fission technology. As far as I know, we should have mastered those handheld nuclear fission technologies now. "

"I know this." Li Yuzhang, who has been in charge of energy research, stood up at this time.As the core staff of Gaoshou Company, he is over 70 years old, but he still looks full of vigor and vitality, "We have only recently perfected the handheld nuclear power plant you mentioned. It is nuclear fission technology. As for nuclear fusion, sorry. Now they have 100 meters in diameter and requires a lot of seawater cooling.

In addition, the most reasonable handheld nuclear power plant is a diameter of 30 cm, which can work continuously for 50 years and output 10 degrees of electricity per hour; it is very stable and safe, and it is a mature product.It is about to be mass-produced and will be used as an energy source for future space communications, various small detectors, and satellites.

Now.In the case of meeting the needs of space, the minimum diameter can be ten centimeters, the output of one kilowatt-hour per hour, and the working time of 10 years; the maximum one meter.It can be adjusted, the maximum can reach 500 kWh per hour, and it can work for 60 years; the lowest can be adjusted to 10 kWh, and it can work for 200 years. After 200 years, the hardware is aging and cannot be continued.

Um, and weight. The weight of 30 centimeters is about 90 kilograms, and the nuclear fuel is relatively heavy.One meter weighs 17 tons.Give us another year, and the 30cm size will also be able to automatically adjust the power output, and the life span will likely continue to be extended.In terms of the measurement of time units, in order to unify, the earth calendar is adopted.There is too much information in scientific research, we can only continue to extend the time of the earth.

However, I am worried that in the exploration of space, ten years and one hundred years will not be enough at all. "

"Thank you." Chen Feng bowed slightly, "In that case, we will use a 30-centimeter nuclear fusion. The output of 10 degrees of electricity per hour should basically meet the needs of space probes.

In this way, an interstellar probe with good functions has a design weight of about 200 kilograms.We calculate according to 200 kg.

My plan is this.Use the super-combined electromagnetic rail to launch the detector.This guide rail is not the length we usually see, several kilometers.Instead, thousands of kilometers, or even tens of thousands of kilometers.

Using the rails, we speed up the probe as much as possible and launch it out of the solar system.When the probe is moving forward, we use the solar sail to accelerate the probe.

There is no resistance in space, which allows us to design the solar sail to be large enough within a reasonable range. Using nano-film technology, we can design a solar sail with an area of ​​tens of thousands of square meters, and the weight can be controlled within 30 kilograms.

Then, we use the space mirror to gather enough sunlight and convert it into parallel sunlight beams to illuminate the solar sail, so as to continue to push the probe to accelerate.

We already have several kinds of high-strength films that are resistant to high temperatures.But there is one thing to note here, the film needs to be as reflective as possible.In this way, lighting and reflection will provide double thrust.Otherwise, a large amount of light is absorbed, and under high-speed motion, the absorbed energy will be converted into mass under an unknown mechanism.This is what we don't want to see.

Using the phenomenon of constant speed of light, theoretically, we can always accelerate the detector to infinitely close to the speed of light.Of course, this doesn't make sense to us.In science, we never vigorously explore things that don't make much sense.

But in theory, as long as the sunlight continues to flow, the probe can be accelerated all the time.However, considering the complex space environment, the solar sail will lose its function.Therefore, we will activate the nuclear power plant at this time to provide the driving force and the energy for the instrument work.

But the specific speed, etc., still need to be calculated.After my personal calculation, I prefer to accelerate to 0.7 times the speed of light in the end, and use 0.7 times the speed of light as a standard for our universe exploration.Because when it is about 0.7 times, the mass of the substance will double.An object with a mass of one kilogram becomes two kilograms.But on small detectors, this variation is acceptable.

At 0.7 times the speed of light, it will take about 17 years for the probe to reach T-Cetus; it will take 12 years for the signal to return.Considering various complex problems in the universe, it will take us about 30 Earth years and 39 Venus years before we can receive the feedback signal from the probe launched now.

At this time, the time consumed by the acceleration process has not been calculated.

Also, I want to say that this kind of probe launch technology can only be regarded as the foundation. If it needs to be expanded in the future, the technology can be expanded and used as the acceleration method of the spacecraft. "

Many people frowned so much that they forgot to applaud.The reality is so bad, no one thought of it; to be exact, no one dared to think about it!Because, this is too shocking.

Originally, I felt that I was very powerful. You see that the technology is so advanced and far surpasses the counterparts on the earth.But now, after taking a look at the specific figures, I found out that—after the test, according to the current technology, it will take more than 40 years to go to the nearest centaur constellation—it’s still a one-way trip.If you add the signal transmission time, it will take 45 years!How many 45 years are there in life!Ordinary people can live two 45 years, that is the real longevity!

For a while, the scene was a little calm, or depressing.Only Chen Feng was silently demonstrating and explaining his expected animation.The guide rail that is tens of thousands of kilometers long has a pair of wings every [-] meters—they are photovoltaic cells; the electromagnetic guide rail with a total of [-] pairs of wings is like a dragon in space; the error at any point of the entire guide rail is almost zero, and the diameter is about one rice.No matter how big it is, the magnetic field will disperse, resulting in reduced efficiency of guide rail technology and serious heat generation.

In addition, affected by various forces in space and the universe, the guide rail with a length of tens of thousands of kilometers is almost equivalent to the diameter of a planet. Such a slender guide rail technology still has many difficulties to be overcome with the current technology. ; instead of simply splicing.