-
Anonymous users2024-02-13Unable to leave the right earth environment, unable to make a spaceship with the speed of light, unable to solve the energy problem, these three problems cannot be escaped without being solved.
-
Anonymous users2024-02-12Human beings cannot leave the solar system because they cannot do without oxygen and water, and they cannot master higher levels of energy, which are very important to human beings, and once they leave the solar system, they will be affected.
-
Anonymous users2024-02-11The first is oxygen, without which one cannot breathe, the second is water, which is the source of life, and the third is food.
-
Anonymous users2024-02-10Is there any other life in the universe besides Earth? It's a question we've been exploring. And the reality is that maybe humanity will never be able to get out of the solar system.
Universe is measured in light years, and it will take at least one year to accelerate to the speed of light at a speed that the human body can bear. If you go to a longer distance, the life span of human beings is obviously not enough. Cryo-dormancy in science fiction films, in fact, NASA has studied this technology.
It is drugs that make the human body dormant and reduce metabolism to reduce basic consumption, but it does not increase the life expectancy of a person. So spatial distance is an insurmountable obstacle.
In addition, scientists were surprised to find that all the galaxies in the universe seem to be slowly moving away from the Earth, of course, the changes in this distance are very subtle and difficult to detect.
Since the rate of expansion is faster than the speed of light, this leads to another terrible problem: human beings who cannot achieve the speed of light will never seem to be able to reach the end of the universe. We have been catching up, but we have been left behind, and eventually the earth is slowly "locked up".
NASA has discovered that at the edge of the solar system, it seems that there is an invisible force preventing humans from exploring everything beyond the solar system. When everything reaches the edge of the solar system, it inexplicably begins to slow down, and if you take pictures of the interior of the solar system from the edge of the solar system, you can't see the glowing sun.
For more than 30 years, NASA has been trying to unravel the truth about the edge of the solar system, only to find that the solar system seems to be a closed galaxy that is difficult for humans to break through.
-
Anonymous users2024-02-09The distance calculated by the above astronomical units is approximately equal to 1-2 light-years, which means that you can walk continuously at the speed of light (300,000 kilometers per second) for 1-2 years before you can get rid of the gravitational influence of the sun, otherwise if you stop (the relative speed is 0), the sun will drag you back again.
Eating too much, sitting for a long time, and not exercising can cause your belly to get bigger and bigger. These three reasons are that many people's bellies are getting bigger and bigger, so there will be more diseases. Because the abdomen does not need so much fat, if there is too much fat, it is actually to protect the body. >>>More
Everyone will behave differently when they break up, some people like to procrastinate, and some people are very neat. There are also people who will behave differently after a breakup, some people feel that they will be separated and it would be good to start the next relationship, but some people will easily regret it after a breakup, and they will always be unforgettable for their ex. >>>More
The first reason is that the third prince has been favored by the Dragon King since he was a child, and he has not learned any good skills, and his kung fu is not strong; The second reason is that the third prince was set up as a white dragon horse to accompany Tang Sanzang to learn scriptures from the Western Heavens, and some mana was restricted and could not be used.
Dental caries is a multifactorial disease, mainly including three aspects: bacteria, diet, teeth and saliva, all three are interrelated, and without one aspect, caries cannot occur. At present, scholars believe that saliva, as the external environment of the teeth, is an important factor affecting caries. >>>More
"Sanqian" is the father of aerospace - Qian Xuesen; the father of Chinese mechanics - Qian Weichang; The father of China's atomic bomb - Qian Sanqiang. They all come from the same family and are taught by the same "family motto" to succeed; They are great men in science and technology who pursue truth, explore knowledge, and promote social progress; They are the founders of a variety of high-tech fields in the Republic and the leaders of independent scientific and technological innovation; Their colorful lives contain the cultural traditions of loyalty, filial piety, benevolence, righteousness, faith, courtesy, wisdom and courage of the Chinese nation, as well as very valuable patriotic sentiments and revolutionary heroism. Undoubtedly, these three great men of science and technology are the precious spiritual wealth of the Chinese nation and the glorious models of our young friends.