The invention of smartphones and laptops has revolutionized the way we live, providing a myriad of benefits that have become integral to our daily routines. Firstly, the portability of these devices allows us to stay connected and productive on the go. With smartphones, we can make calls, send messages, and access information from virtually anywhere. Laptops, on the other hand, offer a larger screen and more extensive functionality, enabling users to work on complex tasks and creative projects while being mobile. Secondly, the vast array of applications and software available enhances our efficiency and convenience. From productivity tools to entertainment apps, these devices streamline various aspects of our lives. Lastly, the interconnectedness facilitated by smartphones and laptops fosters global communication and collaboration, breaking down geographical barriers. In conclusion, the invention of smartphones and laptops is undeniably crucial in our modern lives, offering unparalleled connectivity, versatility, and efficiency. These devices have become indispensable tools that significantly contribute to our daily activities and overall well-being.

The Internet is one of the most useful inventions in the 21^st century. Firstly, the Internet allows us to communicate for long distances. For example, we can use a mobile phone connected with the Internet to make a call, text messages with friends from all over the world. Secondly, the Internet is very useful for us to study and work online. We can join many online classes to study after school or work from home with apps using the Internet. Finally, the Internet is used to search for all the questions. The Internet can quickly come up with a dozens of answers which is contributed by many users on it. In short, the Internet bring us many benefits so people should try it soon.

Tạm dịch:

Internet là một trong những phát minh hữu ích nhất trong thế kỷ 21. Thứ nhất, Internet cho phép chúng ta liên lạc với khoảng cách xa. Ví dụ, chúng ta có thể sử dụng điện thoại di động có kết nối Internet để gọi điện, nhắn tin với bạn bè từ khắp nơi trên thế giới. Thứ hai, Internet rất hữu ích để chúng ta học tập và làm việc trực tuyến. Chúng ta có thể tham gia nhiều lớp học trực tuyến để học sau giờ học hoặc làm việc tại nhà với các ứng dụng sử dụng Internet. Cuối cùng, Internet được sử dụng để tìm kiếm tất cả các câu hỏi. Internet có thể nhanh chóng đưa ra hàng tá câu trả lời được đóng góp bởi nhiều người dùng trên đó. Tóm lại, Internet mang lại cho chúng ta rất nhiều lợi ích vì vậy mọi người nên thử sớm.

1.Electric light bulb(Thomas Edison),Gramophone(Thomas Edison),Phone(Antonio Meucci and Alexander Graham Bell),Computer(Alan Mathison Turing )........

2.It's electric light bulb

3.It provides light for us to see

4.It illuminates us even at night

5.Speed train (imitated from the kingfisher and feather)

6.Help the train run at the fastest speed and limit the noise

7.Sonar technology

8.it is used to detect and locate, underwater

9.Mackintosh

10.Self-cleaning clothes

11.I want to invent a flying car

12.Thomas Edison with electric bulb

13.In 1880

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In this modern world, the rapid increase in the number of population and vehicles is a serious challenge for the governments across the world. To accommodate the maximum number of people and vehicles in a city they have to enhance the size of it. In this essay writer would like to discuss why careful planning is crucial when building a city.

To embark upon, first and foremost problem behind a broader city is that it causes deforestation. To make it clear, as they need more timber to build beautiful buildings and to make bigger cities they need more space so they grab the space of wild animals, so scientific planning is necessary. More importantly, this devastation of trees can cause air pollution so they should not imbalance natural habitat to build a huge city. Apart from this, they should have a proper waste management system most of the cities are facing this catastrophic problem such as recycling units and disposal units in the city.

Furthermore, the government needs to plan well when building a city. As we know there are many sophisticated cities that struggle with the inefficient drainage system, such as Bombay, Tokyo and the like. Moreover, narrow roads can cause traffic congestion and it is impossible for them to reconstruct a city after building it. In addition to this, modern cities should be well connected with other major cities through seaways as well as road and airways. The cities have many visitors not only as visitors but also for trading and for dwelling so modern cities should be big enough to accommodate more people. Moreover, these should have ultra modern facilities such as schools, colleges and hospitals.

To conclude, in this era most of the countries development are mainly concentrated in their cities so it is quite necessary to have a developed city but, these developments should be scientific.
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Over the last years, many cities have grown in an unsystematic way. As a result, infrastructure of these cities are facing some problems. The best way to tackle this issue is to make careful plans for developing of these cities. In this essay I will look at the reasons why careful planning is so important and how they can positively impact on life in cities.

Firstly, it is common to see in many countries, especially in developed countries, a row of vehicles on the road that get stuck in traffic jam. The main reason for this is that infrastructure of roads in these countries are very dated and are not able to afford so much cars or other means of transport. If government improve the infrastructure of transport systems with a careful plan, there is no doubt that most of traffic problems will be reduced.

Secondly, we can observe a dramatic increase in the number of factories in many big cities which negatively affect to many aspects of the life there. What I meant by this is that factories in many cities were built in separate places and as a result factory pollution is spread all over the city. Although factories built in different places of the city can allow people to commute to work that are in short distance to their home, I think it is more advisable to relocate them to one place so as to accumulate all pollution in this place. Of course, it does not mean that any measures must not be taken to completely reduce pollution in this place in order to provide safer work conditions for workers.

To sum up, careful planning plays an important role in the development of cities. While it can reduce significantly traffic congestion, it can also improve air quality there.