Why has space technology stagnated in recent decades?

Not only that, but the progress made in human space has become more significant over the past period of time.

Some people think that the relative reduction of the global space budget after the manned landing on the moon is a "step backwards", but it is not. Although we can "go as fast as we can" in the fierce competition, this will come at the cost of budget cuts in other areas. In a sense, such a "tactical victory" could trigger a "strategic defeat", which in the long run is clearly an act that does not outweigh the losses.

After all, the fanaticism is temporary, and the human space industry will eventually return to the normal law of development.

And as far as the concept of a manned landing on the moon itself is concerned, it actually didn't go beyond the technology of the time - of course, using systems engineering, it is also a very powerful thing to integrate these technologies. It's like we can utilize thousands of tubes.

The combination is like a computer with acceptable computing speed, but when faced with more demanding calculations, we have to use transistors - in fact, the Apollo spacecraft.

The computing power of the control computer is not as good as that of a smartphone today.

With the development of economy and technology, the modern aerospace industry has been very different from the previous one, and it can even be said to be subversive: artificial satellites.

It has begun to gradually get rid of the "stupid, big, black and coarse" appearance of the past, and the development of microsatellites has begun to take shape, and a series of new technologies and new ideas applied to launch vehicles.

The average launch cost of the payload is significantly reduced; Similarly, large satellites have also been significantly improved in terms of technology – both in terms of function and service life; In particular, the aerospace "military-to-civilian" technology represented by GPS has already penetrated into all aspects of people's lives, greatly improving people's living standards - even the "six pure" Buddhism is also full of expectations for the results brought by aerospace technology (Shaolin Temple.

Visit Aerospace Science & Technology News). Therefore, the development of the space field is indeed very huge.

It's not that the development of science and technology has stopped, but that the landlord can't see it.

With the knowledge level of the landlord, he doesn't even know to go to ** to learn about the latest scientific and technological knowledge, let alone know the current cutting-edge of science and technology.

You don't understand. In the past decade, there have been 8,000 inventions in automobiles alone.

There is a state in the United States that has issued a license plate for self-driving cars, and then you go to your car and say, to **, the car will automatically take you there. It's very convenient.

I remember that in the 70s, when we took the bus, it was a rocker to start, and it was a big bucket of water, because it was a water-cooled engine, and in the 80s, we introduced electric ignition and coolant for cars, and the technology was constantly improving.

Probably because countries are secretly hiding their strength.

It has never been stagnant, it can only be inconvenient to disclose to the outside world, and when the results come out, it will naturally be announced to the world.

Because some useful information may be kept secret by the powerful countries.

There is no stagnation, but there is no substantial development of development.

Technology is constantly advancing, and the deeper it goes, the more difficult it is to understand.

There has been no real breakthrough, but it cannot be said that development has stagnated.

There are a lot of small branches to study in the big field.

Technology is slowly evolving, but we don't know it as well.

The development of communication technology: The development of space technology has promoted the progress of satellite communication technology, which makes it more convenient for people to communicate and transmit information over long distances.

Advances in medical technology: The development of space science and technology has promoted the advancement of medical technology, such as life support systems, disease research in microgravity environments, etc., which are expected to help humans better prevent and improve diseases.

New ways of resource development: Space exploration has provided mankind with new ways to develop resources, such as solar energy, minerals, etc., and the development of these resources is expected to solve the problem of human energy and resource shortage.

The promotion of environmental protection technology: the development of space science and technology will also help to promote the development of environmental protection technology, such as satellite monitoring, weather forecasting, etc., the application of these technologies is expected to help human beings better protect the earth's environment.

In-depth scientific research: The development of space science and technology has provided new platforms and means for scientific research, such as cosmic physics, astronomy, earth science, etc., which will help mankind better understand the universe and the earth and promote the development of human civilization.

I want to learn more about space.

At 00:23 Beijing time on October 16, 2021, the Long March-2F Yao-13 carrier rocket carrying the Shenzhou-13 manned spacecraft was accurately ignited and launched at the Jiuquan Satellite Launch Center according to the scheduled time, about 582 seconds later.

The Shenzhou-13 manned spacecraft successfully separated from the rocket and entered the predetermined orbit, successfully sending three astronauts, Zhai Zhigang, Wang Yaping, and Ye Guangfu, into space.

This is the 21st mission since the implementation of China's manned space project, and it is also the second manned mission in the Xiaoxian stage of the space station. After the spacecraft is put into orbit, it will carry out autonomous rapid rendezvous and docking with the Tianhe core module and the Tianyuzhou-2 and Tianzhou-3 combinations in accordance with the predetermined procedures.

Subsequently, the astronauts will be stationed in the Tianhe core module to start a six-month in-orbit stay, carry out robotic arm operation, out-of-cabin activities, module transfer and other work, and further verify a series of key technologies such as astronauts' long-term stay in orbit, collision, dismantling, shooting, regeneration and life protection.

Update 1:More than 300 words can be sanded to: e-mail: [email protected].

Manned space flight has greatly expanded the scope of human activities, is an important means for further large-scale development and utilization of space resources, and is of great strategic significance to the country's political, economic, scientific, and technological development. The former Soviet cosmonaut Gagarin went into space for the first time in 1961, and the American Apollo spacecraft successfully landed on the moon in 1969. It has enriched mankind's understanding of near-Earth space and the Moon, and has produced significant social and economic benefits. NASA experts calculated at the beginning of this year that for every $1 invested in manned spaceflight, the United States would receive $9 in benefits, and more than 30,000 civilian products would benefit from the technology developed by the space shuttle, not to mention the scientific achievements brought about by the space shuttle's 100 training and multiple flights.

**Reference:yimg/i/icon/16/35

Since the earth inhabited by human beings is only a small planet in the vast universe, the current understanding of space by human beings is the same as the understanding of the sea by children playing in the sand on the beach. Mankind's desire to learn about space will be the eternal driving force for space exploration.

Human exploration of space is driven by human nature's desire to explore the unknown, and it also has very important practical significance. Understanding the nature and mysteries of the universe will help mankind discover the laws of evolution of the material world. In the face of today's increasingly crowded and degraded environment, human beings need to explore new living environments, including discovering new resources and discovering new places to live.

50 years is beyond the effective range of progress in terms of **, generally **30 years, and there are too many variables in 50 years. However, it can be analyzed for 30 years.

The progress of science and technology will be very rapid, because the entry of the information age will increase the speed of our knowledge exchange, and more new technologies will appear (such as nano, energy, power, informatization, etc.) and our lives will be greatly improved. As for the question of degree, we still belong to the primary post-industrial era in terms of the civilization level in science fiction.

The hierarchy of civilization is, no intelligence (animals), primary primitive societies (tribes), advanced primitive societies (feudal, etc.), industrialized societies (18th, 19th century, mid-20th century, fossil fuels as the main energy source**, with inefficient machinery and equipment, not only space to explore energy) post-industrial era (late 20th century to 21st century?) The information age (may have new energy sources, or still be dominated by fossil fuels, have a high-speed global information network, and have preliminary manned space exploration capabilities, and build a base outside the home satellite, getting rid of agricultural production as the first task. We are kind of touched) post-information age (mainly high-efficiency energy, with sub-light space exploration capabilities, with colonies outside the home star, and initially out of the home galaxy.

In the next 30 years, we will mainly think about the development of the information age, in terms of space, we may build the first lunar base, there may be new propulsion methods, information transmission technology will be more mature, medical and health technology will be improved, we will find more effective ways to develop diseases, but we will also find more new diseases to be discovered, and the development of energy will also be forced to develop because of the depletion of fossil fuels.

Recently, I've been abroad and haven't spoken Chinese for a long time, so some of the words are a bit weird, so let's make do with them.

What wars have taken place in the world in the last 100 years? What are the reasons? What are some big events or things worth remembering? Please elaborate on the fact that the great war is undoubtedly the first.

I. World War II. Cause.