Who knows what miracles science and technology have created in the 21st century

Isn't it, it's only the beginning of the 21st century, 11 years, how do you know what will happen next???

The science and technology of the 20th century also created television, nylon, and plastics, which greatly changed people's lives.

1. TV. The birth of television is one of the greatest inventions of mankind in the 20th century. In modern society, life without television is no longer conceivable. Black-and-white and color TVs of various models and functions.

The steady flow from assembly lines to factories, schools, hospitals, and homes around the world is miraculously and rapidly changing people's lives.

2. Nylon. American organic chemist Carothers, in 1935 with adipic acid.

Polymers made from hexamethylenediamine contain 6 carbon atoms in both components.

At that time it was called Polymer 66. He melted the polymer and pressed it out with an injection needle, where it was stretched under tension called a fiber. This fiber, polyamide 66 fiber, was named nylon after industrialization in 1939, and it was the earliest synthetic fiber variety to achieve industrialization.

3. Plastics. In the 60s of the 19th century, due to the shortage of ivory in the United States and the lack of raw materials for making billiards, the earliest artificially manufactured sedan chair plastic celluloid in 1869.

Patents obtained. Although celluloid is the earliest artificially manufactured plastic, it is a man-made plastic, not a synthetic plastic, and the first synthetic plastic is a phenol limb aldehyde resin.

Heating the mold was pressed at the beginning of the 20th century, in 1910 American-Belgian.

Made by chemist Beckland.

The significance of the invention of plastics

Plastic products are too common around us, you need plastic bags when you go to the supermarket to buy things, the packaging bags of snacks are also plastic, the crisper boxes you use to put food are also plastic products, and the silicone you use for smartphones, household appliances, cars, and even breast augmentation all contain plastic materials.

Plastic alone, for example, has saved countless elephants.

So many environmentalists have no reason to hate plastic products, not plastic pollution.

environment, but humans pollute the environment.

Plastic is also for our human history.

Left behind valuable audio-visual materials, in the past, it was difficult for us human beings to leave any ** information except painting, and those who could afford to hire painters were rich, and the poor naturally couldn't keep anything.

Examples are:On June 26, the human genome sequence map was completed.

years, important applications of nanotechnology.

On January 15, a human probe set a record for the farthest possible time.

years, confirming the existence of dark matter in the universe.

On June 3, the Poincaré conjecture was proven.

On September 1, the European Hadron Collider was launched.

Discovered cell reprogramming technology.

On October 9, water was discovered on the Martian Moon.

In October, the earliest ancestors of mankind were determined.

The relevance is as follows. 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.

In the 21st century, China has made many scientific and technological achievements in science, and here are just a few examples.

1. Manned spaceflight.

At about 18 o'clock on September 22, the Tianzhou-1 cargo spacecraft deorbited in a controlled manner. So far, the second step of China's manned space program has been completed, and it has made great strides into the "space station era".

Since the 18th National Congress of the Communist Party of China, China's manned space flight has successively made a series of achievements, such as the first application flight of Shenzhou-10, the first flight of Long March 7, the stable operation of Tiangong-2, the mid-term residence of Shenzhou-11 astronauts, the docking of Shenzhou-11 and Tiangong-2, and the smooth replenishment of Tianzhou-1 propellant. The refresh of "China's height" again and again highlights the sacredness and glory of national projects.

2. Jiaolong explores the sea.

As the only deep-sea manned submersible being used in China, Jiaolong plays an important role in exploring the deep sea. The diving depth is a symbol of the country's deep-sea exploration capability, and among the world's scientific research manned submersibles, only Jiaolong can reach a working depth of 7,000 meters.

3. Single-aperture radio telescopes.

As the world's largest single-aperture radio telescope, FAST has pushed Chinese astronomical research to a more in-depth world: it has created a new model for building giant telescopes with independent intellectual property rights, and is believed to maintain world-class status in the next 10 to 20 years. It will promote the development of China's antenna manufacturing technology, microwave electronic technology, parallel robots, long-span structures and other high-tech development.

4. Supercomputers.

Billions of times per second! This is the floating-point operation speed of "Sunway Taihu Light". In June 2017, in the latest list of the world's top 500 supercomputers released by Germany, "Sunway Taihu Light" appeared at the top of the list for the third time with this "super speed", achieving three consecutive championships.

In November last year, based on the "Sunway Taihu Light", the application project of "10 million core scalable atmospheric dynamics full implicit simulation" completed by China's scientific research team won the highest award in the field of supercomputer application in 2016 - the "Gordon Bell" Award, which became a milestone in the history of China's high-performance computing development.

5. The world's first quantum science experiment satellite "Micius".

On August 16, 2016, China successfully launched the world's first quantum science experimental satellite "Micius". Quantum secure communication is currently the only unconditionally secure communication method known to mankind that cannot be eavesdropped or deciphered.

In recent years, the quantum communication team led by Professor Pan Jianwei of the University of Science and Technology of China has made a series of major breakthroughs in this field, opening the door to global quantum communication, space quantum physics and quantum gravity experimental testing, seizing the commanding heights of quantum science and technology innovation for China in the world, becoming a benchmark for international peers, and realizing the transformation from "running in parallel" to "leading".