Essay on the development of science and technology and social life in 300 words

In the past, the carriage and horse were very slow, and only one person was loved in life, and from this sentence, it is not difficult for us to find out how inconvenient the traffic was in the past.

In ancient times, our ancestors first relied on people to transport, and when there were things that needed to be transported, they carried them on their shoulders, and later someone invented wheels, cars, and then to the present, buses, trains, and gaute.

Airplanes, ships and other means of transport.

It makes it much more convenient and fast for human beings, and now, online shopping, it can be shipped in three or four days. The quality of transportation has been greatly improved, and it is much more convenient to travel far away.

I remember when I was in elementary school, communication tools, mobile phones have not been implemented in the door-to-door, just a few years have passed, now everyone has a mobile phone in their hands, in the past to learn knowledge, difficult questions to learn from books, teachers, friends, family to understand, now directly take out the mobile phone to ask the Internet, all difficult problems can be solved, in class do not understand the place, you can also search on the mobile phone on the Internet. In the past, people used to communicate, using letters, and it took a long, long time to deliver, and then the telegraph was invented, and now if you want to contact relatives and friends, you can use various social software.

In recent years, China's science and technology have been constantly developing, and China's military power has also been growing. Technology has not only brought benefits to our lives, but also harms. Heavy industry.

The development of the destruction of the environment by two legs all over the world, and now fast means of transport, trains, cars, planes, people's physical fitness.

It went down. With the development of science and technology, there are more and more types of drugs, and bacteria and viruses are resistant.

It also intensified, and "superbugs" appeared.

We must make good use of science and technology to bring us a happy life, use science and technology to benefit life, and test science and technology in life. Technology and life are closely linked, life is the best test of science and technology, and the convenience and speed brought by science and technology to life are tested.

Writing ideas:You can talk about what kind of changes the rapid development of science and technology has brought to people's lives, what people's lives were like in the past when science and technology were backward, and what kind of lives people are like in today's developed science and technology, and how do you feel about this?

Body:

The rapid development of science and technology has brought rapid changes to our lives, and many aspects of life have changed because of technology.

Look at the water dispenser again, you can drink water whenever you want, and you can cool it when you want to drink cold water, and heat it when you want to drink hot water. What, the water in your house is also warm in winter and cool in summer? That's for sure, in the past, people had to go far away to fetch water to drink water, and then boil the water before they could drink it, which was time-consuming and laborious.

Take a look at the washing machine, put the dirty clothes in it, add some laundry detergent, press a button, and then put the water to wash it yourself, and it will automatically dry after washing. Ah, you said your washing machine is more functional? Yes, you have to carry it to the river to wash it before you can, and you have to wash it by hand, but it's tiring.

Take a look at the liquefied gas stove, turn on the gas**, and you can fry the vegetables on the pot rack! How convenient! Of course, what era is it now, if you put it in the past, you have to use firewood to make a fire, and the smoke is billowing out, which is very unhygienic.

If you're thirsty, let's have a cup of hot soy milk. It smells so good! How did it come about?

It is made by a fully automatic soymilk machine. Oh, and you also have a soy milk maker at home? That is, it's not like before, if you want to drink a cup of soy milk, you have to manually grind the beans, and the juice has to be boiled and filtered before you can drink it.

See! I believe that with the development of science and technology, our life will be happier and better, and our motherland will be more prosperous!

With the development of human history, today's social life is full of the fruits of scientific and technological development. You see, clothing, food, housing, and transportation are inseparable from technology? Take, for example, communications.

In ancient times, when the family went far away, there was no news, unless the villagers could bring a message, and later, people borrowed pigeons to convey some brief messages, and whether the pigeon could arrive safely was not necessarily? However, not everyone can use pigeons, they have to be specially trained, so the range of use is very small. When people found that Hongyan could not meet people's requirements, there were "postmen" and "messengers", and special people were used to deliver letters for people, and they could transmit more information at the same time.

However, due to traffic conditions, the speed of transmission is still very slow.

I remember that there is such a long-distance journey scene in the TV series "Qiao's Courtyard": Qiao Zhiyong traveled from Beijing to Wuyi Mountain, Fujian Province to sell tea, and it took a month to walk by land, water and land. The local government failed to pay the salary to the imperial court on time for fear of being attacked by the Taiping army, and Qiao Zhiyong, who was very business-minded, wanted to use this opportunity to open a ticket number, which is our current bank.

First of all, his headquarters in Beijing had to pay the imperial court in half a month on behalf of the local government. He runs a number of shops in Beijing, so money is not an issue, what matters is how to let the headquarters in Beijing know about this task, and it will not exceed the time.

At that time, I was very anxious for him when I watched this TV series, because in our eyes today, such a problem is simply not a problem, and it is so difficult that it is so difficult that he has to use his life as collateral in his society. As a result, his subordinates did not stop for fifteen days and nights, did not close their eyes, and hurried to Beijing.

So I think ** is really a great invention. In today's common use for many years, if suddenly** and the mobile phone is broken, although you can continue to live, you can't contact the outside world in an instant, and it feels as if you have been abandoned.

Mobile phones are also a huge progress, ** is fixed, can only be used at home, but mobile phones can accompany you everywhere, I think, now everyone to go out before checking the most, must be money and mobile phones with or not. Because people are used to going somewhere and telling people that they are safe on their phones, and asking for help on their phones when you need them. If you don't have a phone with you, you feel like you've lost a way to ask for help, and it's definitely the most frequently used.

Without leaving home, you can know everything about the world and buy what you want. That's a testament.

Our hometown does not reconsider the development of science and technology, and it is not yet up, and it is not a quiet hometown anyway.

Nowadays, the development of science and technology is getting faster and faster, and we use mobile phones and tablets.

With the change of the times, the change of people's thinking, and the development of science and technology, every family has high technology.

Now, scientists have developed one of the world's fastest hydrogen-fueled vehicles. Not only does the car save hydrogen fuel, it doesn't pollute, it also travels at high speeds, with a minimum speed of 80 kilometers per hour and a maximum speed of 100 kilometers per hour. The car set a new world record with just 2 kilograms of hydrogen fuel to travel from Berlin to Barcelona.

Hydrogen-fueled vehicles have only three wheels, and their air-fiber gas resistance is only half that of ordinary cars. Now, with this kind of car, you are not afraid of the pollution of the environment from the exhaust gas emitted by the car!

Now, there is also a light-emitting diode flashlight. This kind of flashlight is much better than a regular flashlight. There are 3 reasons why LED flashlights are better than regular flashlights.

One is: the lighting distance of this flashlight can reach 40 meters, while the ordinary flashlight can only reach one or twenty meters. The second is friendship and emptiness

Its lighting time, a pair of No. 5 batteries can be used for 20 hours, while a regular flashlight can only be used for 2 hours. The third is: the life of an ordinary flashlight is one-tenth of that of a light-emitting diode flashlight.

With this flashlight, you can reduce the damage of the battery to the environment.

Recently, the United States has developed a new type of robot. This robot can do housework, can organize materials, etc. It is a "good helper" for people's erection life

Technology is constantly evolving, and it is constantly improving. It has brought a lot of help to people's life, study and work.

People's lives are more benefited by the development of science and technology. Every home has traces of the benefits of technology. For example, induction cookers, people no longer need to burn firewood to cook;

The refrigerator can keep meals fresh, and you can also ice cold drinks in summer, which is cool and comfortable to drink; Washing machines, which help people wash their clothes, saving time and manpower; Air conditioning, regulating temperature, making people comfortable all year round, etc., are all conveniences brought to life by the development of science and technology.

Nowadays, listening to songs, watching movies, chatting about Kaitian, and watching news on the Internet have long become a new world of entertainment for people in the new era; Online education, which is now popular, allows children to get teachers from far away to teach them without going out.