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It is the most basic and lowest-level energy source. Because nuclear fusion is the method with the highest energy conversion rate among known energy sources, other methods such as nuclear fission and chemical fuels cannot meet the requirements of replenishment.
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Nuclear fusion is definitely the lowest and most basic fuel for interstellar travel, because other energy requires complex things.
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Nuclear fusion is indeed the most basic energy source for interstellar navigation at present, because other fuels for mankind do not have such a powerful effect.
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In fact, the most important indicator of interstellar navigation is high specific impulse! Chemical propellants or fusion fuels are only used to break away from the gravitational pull of the earth! Hall thrusters are the foundation of interstellar navigation!
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The sun's glow and heat are not caused by nuclear fusion, but by gravitational focusing. It was the most convincing Copernican revolution and a major discovery that shook the scientific community. This is true of all shining stars.
Please see the first issue of "Scientist" in 2021, "The Nature of the Sun - The Principle of the Sun's Luminescence and Heat". The article explains the argument in detail. It's an unquestionable cognition.
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Not now, the future looks quite mysterious, most likely not.
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The simplest fusion reaction in nature is the fusion of deuterium and tritium, isotopes of hydrogen, which have been continuously reflected in sunlight for 5 billion light-years, and nuclear fusion reflects deuterium, an isotope of hydrogen that can be extracted from the surface of the sea. If the deuterium contained in every 1 liter of sea surface is refined, it will produce a complete fusion reaction, which can release the same energy as 300 liters of motor gasoline when ignited. For this reason, it is estimated that according to the current global energy consumption level and the total sea surface, nuclear fusion energy can be used for tens of millions of years, or even billions of years.
The most important thing is that nuclear fusion is not easy to cause long-term and first-class radiation produced by nuclear fission, does not cause nuclear waste disposal, naturally does not cause greenhouse gases, basically does not pollute the environment, naturally, if nuclear fusion can not be controlled, then it will become a thermobaric bomb, so the fiber experts want to create a device that can reasonably manipulate the whole process of the "hydrogen bomb test", so that the energy continues to be exported smoothly, which is controllable nuclear fusion. Scientific research on nuclear fusion was carried out very early in China, as early as the 50s, and Wang Chengshu, a famous scientist in China, clarified the theoretical basis and method of thermonuclear fusion in scientific research. And carried out the basic construction of the first three plasma test equipment in China.
He has become an expert and professor in China's thermonuclear industry, and has created a large number of outstanding talents in the thermonuclear industry.
At this stage, there are two forms of controllable nuclear fusion, one is the basic theory of laser inertial force tube bundle nuclear fusion by Mr. Wang Ganchang, and the other is magnetic tube bundle fusion. Magnetic confinement fusion refers to the use of a unique form of electromagnetic field to bundle a high-temperature plasma tube in a thermonuclear reaction situation composed of light atoms such as deuterium and tritium and free charges in a sufficient volume, so that it can be manipulated to produce a lot of molecular nuclear fusion reactions and release energy. This was first explicitly stated by Soviet biologists Tamm and Sakharov.
As early as 1962, after the establishment of the Northeast Institute of Technical Physics, China completed a z-pinch device, an angular pinch device and an ion source, and carried out the design of a stabilized magnetic mirror.
Fission energy is the maximum energy released by the antiprotons of heavy metal elements according to fission, and it has been commercialized at this stage. Due to the scarcity of uranium and other heavy gold elements necessary for fission on the earth, and the basic fission nuclear reactor will form a long-lived nuclear waste disposal with extremely strong radioactive materials, this factor limits the development trend of fission energy. Another way to generate electricity from nuclear energy is fusion energy, which has not yet been commercialized.
Nuclear fusion has been reflected in sunlight for 5 billion light-years in a row.
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First, controlled nuclear fusion must be realized, because the theory has long been solved, and now it only needs the accumulation and breakthrough of technology. Second, the energy problem is the core problem of mankind at present, and once the energy problem is completely solved, food and other problems will not be a problem, and all problems caused by the shortage of resources will be solved. The current social status quo will jump to the next state, what it is, will not be discussed for the time being.
Third, Einstein called the mass-energy equation, which means that energy is infinite. Interstellar travel, it's just a matter of time. Fourth, time is a false proposition, and after the breakthrough of sidestocking technology, time may be re-recognized and redefined.
Fourth, the next stage is the exploration of micro and macro, consciousness, and the cognitive ...... of the human ecosystemThe next stage can be dreamed of, but the unthinkable.
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If nuclear fusion can be controlled, it is only a new way of energy in the process of human development, which can obtain energy through intelligent transformation, although nuclear fusion can help us to develop more advanced in the aerospace industry, but in order to achieve interstellar navigation not only need energy, but also need us to have a very breakthrough in space technology.
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It is also possible to inform the interplanetary voyage of the liquid, but the sock lift has many uncertainties and the cost is greater than that of the burial circle, and this research, once realized, will help people to better carry out interplanetary voyages.
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Science Burn Program
Up to now, only the United States has completed the feat of landing on the moon, and at present China and Russia are intensively planning for the first moon landing, and the United States is preparing to land on the moon again, even if the United States completed the first moon landing in the 60s, it is very difficult to replicate it again, so it can be seen that the moon landing is very time-consuming and laborious, and it is necessary to use the power of the whole country.
The Saturn 5 rocket used by the United States to land on the moon is the rocket with the largest human thrust so far, although the total thrust is 3038 tons, but the lunar orbit carrying capacity is only 45 tons, and most of the load has to be used to load chemical fuel propellant.
In the process of landing on the moon, it is necessary to launch a rocket to carry the load to the lunar orbit, and then combine it in orbit to form a lunar spacecraft, and then use the fuel it carries to fly around the moon to the moon, brake and land on the moon, and after completing the task, then fly away from the moon with the remaining fuel, go around the lunar orbit, enter the earth's orbit, and then enter the atmosphere to "fall" back. It can be seen that the process of landing on the moon is complicated, not a rocket flying directly to the moon, and it is not like a spaceship in a science fiction movie, flying freely between the earth and the moon or various planets.
Therefore, the main task of this rocket is to send the spacecraft out of the earth's atmosphere, and to any other planet to orbit by the spacecraft itself, to the nearest moon, it takes one to two weeks to go back and forth.
A nuclear rocket uses the energy released by a nuclear reaction or the decay of radioactive substances to heat the working medium, and then discharges the working medium at high speed through the nozzle to generate thrust to make the spacecraft fly at high speed. However, this approach is still technically complex for us and is still being tested due to unresolved issues such as radiation protection, exhaust contamination, reactor control, and the design of high-efficiency heat exchangers.
To sum up, if you fly to Mars, propelled by a chemical-fueled rocket, it will take at least 6-10 months; Flying on a nuclear-powered rocket, it takes 2 weeks. It can be seen that the use of chemical-fueled rockets can make interstellar flights between the Earth and the Moon, and it is very difficult to reach Mars; With a nuclear rocket, it is basically impossible to fly out of the solar system by making an interstellar flight between earth and fire.
To take the current level of human science and technology as an example, if you travel around the world, a chemical-fueled rocket is equivalent to walking, and it cannot be realized in a lifetime. A nuclear rocket is equivalent to riding a donkey, much faster, and it can still be realized.
The legendary curvature engine, wormhole crossing and other technologies are equivalent to today's airplane rockets, although they can easily achieve global travel, but they are far away.
Therefore, if there is no fundamental breakthrough in basic theories and science and technology, human beings can only stay in the current stage of interstellar crawling, and galaxy flight is still a dream.
**From the web).
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There must be, fossil fuels must be difficult to break out of the solar system, after all, the hedging ratio of this fuel is still not enough, the next generation of fuel in fact, only need to increase its fuel density, such as taking the full nitrogen anionic salt can be a good way to improve the fuel density.
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It is supposed to be the fuel for the next generation of galaxy travel, but it has not yet been discovered and confirmed by humans.
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At present, there is no fuel for the next generation of interstellar travel, and even if controlled nuclear fusion is mastered, interstellar travel will still not be possible.
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A new generation of new energy sources, such as solar energy, is currently being developed, which is enough to support human interstellar travel.
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