- Future Science-KR Chowdhury
Ko Ronavirus is not a human species i.e. Homo sapiens is immortal. That has been proven. If a virus is produced a hundred times more deadly than corona, human existence would be wiped out in a year or two. The implication is that if no action is taken to save human civilization, which has been going on for thousands of years, human civilization may come to an end in the next 2000 years. The famous physicist Stephen Hawkings knew this better. That is why he insisted that if human civilization is to be saved, it must be taken to another planet. The point is not to end human civilization. How much capacity have we developed? It's worth checking out. We know that before human civilization evolved, all living things on earth perished. And there has also been renewed growth. Here, the destruction of living things does not mean the extinction of 100% of living things, but the extinction of more than 90% of living species from the earth. Guess there is no threat to the survival of the human species. So how far can the development of human species and human civilization reach? Where has human civilization reached in the universe? We have made as much progress as aliens can find.
At what level has human civilization reached?
In a very short period of time human civilization has shown great speed on both the path of evolution and progress. Speaking of 10,000 years ago today, the only source of energy for human civilization was their own muscle power. He used to do a lot of physical labor using muscle power. Today we have many sources of energy available. From fossil fuels, humans have begun to use nuclear energy, hydro energy, wind energy, chemical energy, and solar energy. Humans can now do very big things without sweating. Will this situation continue like this? Will the brilliant man still advance with the use of modern technology? If there is an intelligent civilization like ours in the universe, how much and to what extent is it necessary for human civilization to use energy so that they can find us?
Scientists accept the development of human civilization as a measure of its ability to use energy. When considering the total energy used on Earth, there should be a single reference point for scientists to compare. We know that the biggest source of energy in the universe is the star. Life on Earth has evolved because of a star called the Sun. In order to preserve human civilization and all kinds of biodiversity, the energy and light reaching the earth through the sun is extremely necessary. This is said in common parlance. The remaining light is the same form of energy. It does not need to think of a separate existence. Coming back to the original point, if we want to understand the evolution of human civilization developed on earth or to know if any intelligent extraterrestrial civilization has evolved elsewhere in the universe, a scientific statistic and comparison of the evolution and progress of civilization can be obtained from how much energy they use.
What would a human's 'signature tune' look like?
How will human civilization develop? When we ask such a question, it is not possible to estimate the extent to which human beings have advanced science or technology. But the development of civilization can necessarily be linked to energy consumption. Astronomer-physicist Nikolai Kardashev considers energy to be a pivot point for identifying the various civilizations in the universe. They believe that from one constellation to another, how much energy does an organism need to send a signal or information? He tried to identify human civilization in three ways. In the 19th century, the human race used the same amount of energy as the entire earth. He called that civilization the Type-II civilization. They believed that as much energy is produced by our sun. The same amount of energy, when used by the earthlings, can be called the type-I type of civilization of that time. When will human beings reach the level of type II civilization, are we living creatures elsewhere in the universe or not? He must have been able to get the crown. In other words, if there were any other intelligent and technologically advanced civilization in the universe, humans would have developed an energy-oriented 'signature tune' that could detect us. The more energy the sun generates, the more energy that humans can control and use, which sounds like science fiction. But the fact is that man has become able to control and use some of the energy released by the sun. Man has developed a method of controlling and using star energy. Which we call solar power. The very partial energy of the sun can be used by us. On Earth and in space, humans have learned to use solar energy.
Definition given to Carl Sagan?
To compare any developed civilization in the universe, the Roman scientist (I, II, III, IV) was told to calculate energy in decimal subdivision, that is, a factor of 10, said the famous scientist Carl Sagan. In his opinion, type I type of civilization means that if you put 15 minutes behind one, that is the amount of watt energy. The amount of solar energy collected on the surface of the earth is about 1 x 1013 watts. Type II membership can be associated with 108 and Type-III type membership with 108 watts of power consumption. How much energy do humans currently use? That question is needed. At present human civilization uses 1.2 x 1013 watts of energy. Which is less than type I (one) i.e. type-0.5. The average energy consumption per person is 300 watts. When a human being carries out the metabolic process in his body, 100 watts of energy is used in a comfortable position. The average human energy consumption on Earth is 3 times that. In the scale of energy consumption, a new scale i.e. type-zero scale has been added. Which is mathematically equal to 1 1003 watts. Which we know as 1 MW. This scale can be used not for astronomy but for various biological processes. Blue whale muscle strength is a thousand times greater than that of humans. Speaking of humans, how much power can our signal reach the nearest stars when we generate it ?. To sum up the energy of all the visible stars in the entire universe, the energy level reaches type four, which is up to 108 watts of energy on the power scale.
When will ET be contacted?
It takes approximately 200 years for human civilization to reach type-I on the energy scale. When you reach type II level, it seems to be 2000 years. If we look at the past, the Renaissance period (500 years) and the Pyramid period (2000 years) in Europe are as far away from us. This is likely to be possible in the distant future after so many years. It seems to take 2000 years to reach type III. Reaching type-IV seems theoretically impossible. Galaxies are thousands of light years apart. So to get from one galaxy to another, you have to get faster than light. Which is impossible. Let us assume that an alien is transmitting messages to them in all directions. If you want to do this, you have to use 1012 watts of energy. Or we have a 100-meter green bank radio telescope, in which the signals we can generate would need 100,000 giant power plants to propel it 1,000 light-years away.
Then barely our power scale can reach type I. If we want to send our signal to a planet around any one star, our messages can get there when we use 108 watts of energy using a 500 meter fast telescope in China. If humans can do that, it is called a historical event. Or if we can catch the signal coming from another planet, it can be considered as a historical Shakvarti epoch-changing event. In a message sent to an alien, how much information can the human race have? From this, the development of human civilization can also be determined on an information scale. In the 19th century, a relative thought that a human being could send as much information as 1016 or 1013 bits of information to the universe in his signal. It can be considered as type 0.5 or type 0.4 on the energy scale. But to count only the letters in this information, to count the sound or also to include the video, is a matter of debate and controversy. Even beyond the ability to transmit energy-like information, human civilization or other civilizations can achieve their potential. The rest of us have not yet reached the Type-I on the energy scale, so the aliens have not been able to develop as much as we can find the aliens.
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