If humans build a spaceship with the speed of light, can we control it?

Millions of years ago, after about 4 billion years of evolution, life on earth finally gave birth to intelligent human beings. From the day human beings were born, they were full of infinite curiosity about the world. Ancient people constantly fantasized that one day they could travel all over the world and understand everything and truth in this world.

With the continuous evolution of human beings, after entering the era of civilization, human wisdom has achieved a leap. At this time, smart people began to constantly invent and create, and began to explore the world with these inventions and creations. Especially after mankind entered the era of science and technology, with the help of science and technology, we have created all kinds of fast means of transportation, and the exploration of the earth has entered a new era.

Speed can be said to be the most important factor that hinders human beings from exploring this world. The reason why people in ancient times didn't understand the world was because people at that time didn't have fast means of transportation and couldn't travel around quickly, but they couldn't start with mountains and vast oceans.

Only when mankind enters the era of science and technology, with aviation tools such as airplanes, can we hope to travel around the world. With the super-fast speed, we can not only explore the world of the earth, but also explore the wider universe outside the earth. In human cognition, as long as the speed is fast enough, we can travel through every corner of the universe, but in fact, Einstein's theory of relativity tells us that speed is limited by the speed of light, and no matter how fast the object is, it can only be infinitely close to the speed of light.

For the present human civilization, it is inconceivable to reach the speed infinitely close to the speed of light. Because at this speed, we can easily walk out of the solar system, explore the galaxies near the solar system, find the second and third homes suitable for human survival, and even find wisdom and civilization in other galaxies.

This shows the importance of speed to human civilization. However, if human beings make a spaceship infinitely close to the speed of light in the future, can we control it? I believe many friends have experienced seasickness. Although there are many factors of seasickness, speed is one of them.

I believe we won't get carsick when we ride a bike, but when we take off and land on an airplane, there is a great possibility of carsick. The emergence of airsickness is also civilized, and the human body cannot completely control the ultra-fast speed. When the speed of vehicles is increasing, people will feel uncomfortable and may lose their lives seriously.

As we all know, being a pilot requires very high physical fitness, especially fighter pilots, who need to be able to withstand supersonic speeds. At supersonic speed, the pressure generated is unusual for the human body, and ordinary people can't bear such pressure. Therefore, even if the speed of a fighter can reach dozens of times the speed of sound, the pilot can only choose the speed that his body can bear under actual operating conditions.

Compared with pilots, astronauts have higher requirements for physical fitness, so when we select astronauts, we basically choose the best from the pilots. Because of lack of physical strength, facing the super-fast speed of entering space, the final outcome is death.

In supersonic flight, most people will feel uncomfortable. Supersonic speed is nothing compared with the speed of spacecraft. Compared with the speed of light, the fastest human aircraft is far away. For example, our fastest aircraft "Voyager 1" may take about 10,000 years to fly out of the solar system.

However, if the spacecraft is infinitely close to the speed of light, it only takes less than a year to fly out of the solar system, which is a huge gap. However, when we truly realize the technology of flying infinitely close to the speed of light in the future, we may find that human beings can't control such speed. In the end, only some unmanned detectors may be able to explore the outside of the solar system.

In fact, with the current physical strength of human beings, even the primary sub-light speed flight, we can't bear it at all. At this speed, the human body may be squeezed and exploded. Seeing this, many people may be silent. If humans can't control the speed of light spacecraft, we will be trapped in the solar system forever. Even if future probes find a second earth suitable for human survival in other galaxies, interstellar migration may be just a dream.

Therefore, while we are constantly developing technology and improving the speed of aircraft, it is more important to study and explore how to increase human physical fitness and how to keep us safe when flying at the speed of light. Only when we have the technology and ability to safely control the speed of light spacecraft can interstellar travel and Ad Astra really begin and human beings can really get out of the earth.

So can such a goal be achieved by human beings? The answer is yes, we need to study and explore the normal and stable environment inside the spacecraft. When the speed of the spacecraft itself is infinitely close to the speed of light, it is necessary to maintain a constant and stable state inside the spacecraft. Only in this way can our bodies bear the tremendous pressure brought by the ultra-fast speed.

In addition, in the future, we can also transform the human body through genetic technology, so that we can adapt to the cosmic environment and bear more powerful space pressure. As long as genetic technology is strong enough, it can improve our body's ability to resist pressure, and the pressure on speed will be less and less. Finally, we can rely on complete physical strength to bear the sub-light speed.

It can be seen that human beings want to explore the universe and realize interstellar migration in the future, not just to develop the speed of spacecraft. Light has speed, there is no physical quality to bear the speed, and there is no technology to offset the pressure brought by speed, so the desire of human beings to get out of the solar system is always a dream.

In fact, the first spaceship to leave the earth at sub-light speed in the future is likely to be an unmanned spaceship. Because as long as human energy technology breaks through controlled nuclear fusion, with the support of powerful energy, it is possible to make a primary sublight spacecraft. However, although this speed can achieve sub-light speed flight, human beings can't control it and can only be unmanned.

In any case, the goal of human beings going out of the solar system to explore the starry sky in the future will not change. As long as technology can continue to develop, dreams will continue to come true. Because technology is not omnipotent, all the mysteries of the universe cannot be separated from the category of science. In a sense, science is above the rules of the universe. As long as the power of science and technology is strong enough, all the rules of the universe can be made by us.