What are the major events in the world s scientific and technological development?

Have you ever heard of using air to propel a car? This is a new thing, in the international automotive industry car genealogy can not be found, is a complete alternative car, but things are always changing, in the past ten years, in France, Britain, Spain, the United States, Mexico, South Africa some non-automotive engineers, enthusiastic to develop air cars, and has achieved almost practical test stage, to achieve amazing progress! It is said that the maximum speed of the air car has reached 100-120 kilometers per hour, the acceleration capacity of 0-50 kilometers is 6 seconds, the driving distance is 230 kilometers or 12 hours, and it only takes 2 minutes to add "fuel" at the gas station, and the price is about 6-70,000 Hong Kong dollars.

Now, MDI has set up a design studio, using computers to improve the design and adapt to the needs of fashion. The air engine is a key component of the air car, which looks like a small internal combustion engine in line from the outside, it has crankshafts, pistons, valves, intake pipes, exhaust pipes, timing belts, etc., but it has its own unique operating rules.

June 26, the human genome sequence map is completed.

years,Important applications of nanotechnology.

January 15, the farthest human probe has set a record.

years,Confirm the existence of cosmic dark matter.

June 3, 2019,The Poincaré conjecture was proven.

September 1, 2019The European Hadron Collider is launched.

years,Discover cell reprogramming techniques.

October 9, 2019, the Martian Moon was found to have water.

In October,The earliest ancestors of mankind were determined.

The meaning of technology.

In today's world, scientific and technological capabilities have become the most critical embodiment of national strength. In the era of economic globalization, a country with strong scientific and technological innovation capabilities can be in a high-end position in the world's industrial division of labor chain, can create new industries that activate the national economy, and can have important independent intellectual property rights to lead the development of society. In short, the ability of scientific and technological innovation is a symbol of the vitality of today's society and the joint point of national development.

The formation of scientific and technological innovation capability is a process that requires a certain environment. If people consciously and wisely shape an environment conducive to scientific and technological innovation, the social potential of scientific and technological innovation can be stimulated, and the time process from scientific and technological innovation to industrial application can be shortened. Learning from the experience of various countries in scientific and technological innovation is undoubtedly a good way to enhance the consciousness of the above.

With the progress of science and technology, human beings began to explore more means that can be used for development, including fossil energy, but during the development period, the ecological environment has been seriously damaged, just in the past year, there have been more than one **, volcanic eruptions, heavy rains, extreme heat and other disasters, resulting in a lot of people, the most serious is that global warming is further intensified, glaciers are melting, and the largest ice shelf in Antarctica is on the verge of collapse, making more and more people worry about the future living space.

Therefore, the call to find a "second Earth" is getting louder and louder, and many countries have increased their investment in space, trying to find traces of other planets that may be suitable for human survival, and it is worth mentioning that scientists have found a "super Earth" outside the solar system through the Kepler Space Telescope, and then called it "Kepler-22b planet". According to the data given by scientists, the planet has four seasons similar to the Earth, with an average temperature of 22 degrees Celsius, which means that once all aspects of technology are mature, Kepler-22b will become a more comfortable planet to live on than Earth.

However, due to technical limitations, we are currently unable to explore more information about the planet, as we all know that Earth is a planet with 70% of the ocean area, but whether Kepler-22b is a rocky planet or a gas giant is still uncertain. There are 8 known planets in the sun, which can be divided into rock planets and gas giants according to their composition, the earth is the largest rocky planet in the solar system, the main component is silicate rock, and the gas giant refers to a large planet that is not composed of rocks or solids, and the main masses are hydrogen and helium. In short, Ruokepler-22b proved to be a gas giant that would be uninhabitable even with the right temperatures.

Ruokepler-22b is a rocky planet, which means that its size is equivalent to the size of 14 Earths, and such a huge planet can contain more than 10 times the number of people or resources of the Earth, and even contain enough resources for human beings to use for tens of millions of years. This is undoubtedly great news for humanity. However, in addition to this, humanity is also facing the problem of distance, the distance between the planet and the Earth is currently 600 light years, and even the fastest flying vehicle needs to fly for 20 million years without sleep.

However, the above data are all from theoretical analysis and conjecture, and the current technology cannot really detect whether the planet is really suitable for human habitation, and some experts say that it can only be confirmed that it is the first habitable planet unless there are four dimming of starlight during the observation period. However, you don't have to worry too much, there are currently as many as 54 planets located in the habitable zone, and as the technology becomes more and more advanced, more data will be available in the future. Our top priority now is how to improve the planet's ecological environment.

In the 20th century, the main achievements in the field of science included the theory of relativity, quantum mechanics, quark elementary particles, the double helix structure of deoxyribonucleic acid, the theory of the expansion of the universe, and the emerging complex science. The technical fields include various means of transportation, aerospace technology, mass production technology, chemical synthesis technology, atomic energy technology, semiconductor technology, laser technology, wireless communication technology, electronic computers, digital technology, etc.; In the field of life science and biotechnology, there are pathogen discovery, drugs to resist pathogens, organ transplantation, genetically modified technology and cloning technology of animals and plants, as well as medical instruments such as computerized chromatography devices, nuclear magnetic resonance machines, and ultrasound diagnostic instruments.

There is much to remember about the past century, many of which have changed our lives dramatically, and the predictions of thinkers have often come true.

The American scientist Benjamin Franklin once said: In the future, human knowledge will increase greatly, and new inventions that we cannot think of today will appear again and again, and I sometimes almost regret that I was born too early, so that I could not know what new things will appear. He was right.

In the past 100 years, human science and technology can only be described by leaps and bounds, if an inventor in 1900 looks at today's world, he will recognize cars, **, airplanes, he can also imagine spaceships, deep-sea submarines, but he will definitely know nothing about computers, the Internet, genetic engineering, nuclear energy.

Now, knowledge has given mankind unprecedented self-confidence and optimism, and one writer wrote: "I sincerely believe that we live in the greatest age of knowledge in human history, and there is nothing we do not understand", "As long as people can think of things, there are always people who can do it." The development of technology in the 20th century has made this statement more and more like the truth.

The progress of science and technology has completely changed the way of human existence, and it has also changed the direction of human thinking. In the next 10 to 20 years, there is no doubt that science and technology will make breakthroughs and expansions in many fields.

Maybe the human brain and the computer can be integrated, maybe we can settle on Mars, maybe everyone can clone spare organs, maybe we can review the scientific and technological inventions that brought great changes to human life in the 20th century, look forward to the future development trend of science and technology, and enter a new era of knowledge economy.

Nearly 100 years of scientific and technological development:

Major breakthroughs have been made in the development of methanol to low carbon olefins technology and industrial testing.

A major breakthrough has been made in the industrial pilot project of "Methanol to Low Carbon Olefins (DMTO) Technology Development", which was cooperated by the Dalian Institute of Chemical Physics of the Chinese Academy of Sciences, Shaanxi Xinxing Coal Chemical Technology Development Co., Ltd. and Sinopec Luoyang Petrochemical Engineering Co., Ltd.

Nearly 100 methanol conversion, ethylene selectivity, propylene selectivity, and low carbon olefins (ethylene, propylene, butylene) selectivity of more than 90 percent were achieved on an industrial test plant with a daily processing capacity of 50 tons of methanol. The successful operation of the pilot plant is of great economic and strategic significance to China's comprehensive utilization of energy and the diversification of low carbon olefin raw materials.