What science and technology changed human life in the 20th century?

Science and technology in the 20th century changed human life, first of all, the computer, after all, the application is particularly wide, and mobile communication has changed the communication and contact between people, in addition, the satellite positioning system has also played a great role in people's travel.

The 20th century invented the electric light, invented the television, invented the computer, invented the electric fan, invented the car, the train, the airplane. All of these have changed the lives of human beings.

Answer: In the 20th century, human beings used modern technology to make discoveries: penicillin, laser. Inventions include: electric light, **, etc.

Our life is mainly reflected in food, clothing, housing and transportation.

Clothing: nanomaterials, elastic fibers are added to clothing. Increase and enhance the functional characteristics of the fabric in terms of waterproof, oil-proof, anti-fouling, breathable, antibacterial, environmental protection, not easy to change color, comfortable feel, etc., improve and enhance the wearing performance of the textile fabric, and endow the fabric with new characteristics such as antibacterial health care, ultraviolet shielding, oil-proof and easy care.

Food: The advent of convenience food has made people's lives easier. The emergence of green food has improved the quality of people's food, people eat bright early fruits and vegetables have no season at all, you can eat watermelon in winter, you can eat sweet potatoes in summer, etc.

The emergence of water purification technology has solved the problem of urban drinking water quality.

Housing: The use of solar energy has brought many benefits to human beings: 1. The reserves are not exhausted (about 5 billion years). 2. It will not produce exhaust gas to pollute the environment, so it is more and more valued.

Intelligent community and home intelligence: realize anti-theft alarm, help alarm, gas leakage alarm, fire alarm, automatic collection of water, electricity and gas and other meters, remote home appliance control, and personal information services. Even remotely control the air conditioning equipment in the home thousands of miles away for temperature regulation and home appliance control, lighting adjustment, when a safety alarm occurs in the home (including:

Theft alarm, fire alarm, gas leakage and emergency call for illness, etc.), family members outside can check and confirm the safety status of the family through the network line after receiving the alarm information. Let you truly experience the convenient and pleasant home life brought to you by the development of IT technology.

Bridges and tunnels, Shanghai has Xupu Bridge, Lupu Bridge, Nanpu Bridge, Yangpu Bridge, Dapu Bridge Tunnel, Fuxing East Road Tunnel, Yan'an Road Tunnel, Dalian Road Tunnel.

Tunnels and bridges greatly connect the two banks of the Huangpu River, providing convenience for people's life and work. It has also accelerated the development of Shanghai.

In addition, rail transit, airplanes and maglev trains have also accelerated the development of the city.

Use: computers, digital appliances, Internet, all kinds of smart cards (IC cards in the pockets of more than 7 million people in Shanghai, automatic withdrawal to the bank, take the subway and bus on the line, go to the hospital to see a doctor, pay water and electricity bills, ** fees and gas bills are also more convenient than the original.

Waste harmless treatment uses landfill, incineration and composting methods to separate garbage and produce biogas or some inorganic nutrients to reuse resources. The separated garbage can also be reclaimed from the sea.

Summary. Wait a minute.

Wait a minute. In the 100 years of the 21st century, mankind has relied on science and technology, and I know that science and technology such as Internet technology and cloning technology are changing our lives.

I wish you a happy life, smooth work, good health and all the best.

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<>I know about Internet technology, cloning technology, and whatever, and other science and technology.

Nanotechnology, aerospace technology, artificial intelligence technology.

Energy storage technology, unmanned driving technology.

Thank you, Mr. Hu.

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