Enrico Fermi developed the first nuclear reactor and on December 2, 1942 created the world’s first controlled, nuclear chain reaction, with the results proving the potential of harnessing the immense power of radioactive materials that led to a host of different uses for them, primarily for military and energy purposes.

Ex :anti-hunchback, anti-myopia

-improve learning efficiency

Ex: (create space for concentration, bankruptcy)

-train children's independence, and optimize space.

Ex: children can adjust desk according to their needs, helping to develop initiative and self-discipline.

Instant and Multifaceted Communication: Beyond traditional phone calls, smartphones offer a diverse range of communication methods that are instant and globally accessible. Users can engage in real-time text messaging, instant voice and video calls (via apps like WhatsApp or Zoom), and participate in group chats. This multifaceted approach simplifies both professional collaboration and personal connection, bridging geographical distances and making it easy to share multimedia like photos and videos instantly.

Access to Information and Education: By connecting to the internet anywhere, a smartphone becomes a pocket-sized library and classroom. Users have immediate access to a nearly limitless amount of information via search engines, digital libraries, and news applications. For education, they facilitate e-learning through online courses, educational apps, and the ability to look up concepts or terminology instantly. This continuous, on-demand access fosters lifelong learning and instant problem-solving.

you can easily carry them anywhere, such as to a picnic, a party, or a trip with friends.

they are wireless

you don’t need to worry about messy cables or complicated connections. This makes them very convenient to use.

Clear and powerful sound quality

allowing people to enjoy music, podcasts, or movies anytime and anywhere.

Bluetooth speakers bring many great benefits to modern life. First, they are portable, which means you can easily carry them anywhere, such as to a picnic, a party, or a trip with friends. Second, they are wireless, so you don’t need to worry about messy cables or complicated connections. This makes them very convenient to use. Finally, Bluetooth speakers provide clear and powerful sound quality, allowing people to enjoy music, podcasts, or movies anytime and anywhere. With these advantages, Bluetooth speakers have become one of the most popular electronic devices among young people today.

1. Easy to carry – You can take a laptop anywhere, like school or travel.

2. Easy to use – It has everything you need: screen, keyboard, and battery.

3. Connects to the internet – You can go online, chat, and send files easily.

4. Saves energy – It uses less electricity than a desktop.

5. Many uses – You can study, work, watch movies, or play games on it.

Promote tourism and international trade

Helps deliver goods and aid quickly to remote or disaster-stricken areas.

-Access to information :We can easily search for news, knowledge, and learn online.

- Work and entertainment:Phones support tasks like emails and schedules, and also provide music, videos, and games

The Internet is one of the greatest inventions in the world. It helps people in many ways.

First, it helps us find information easily. For example, students can use Google to study and do homework.

Second, the Internet helps us communicate. We can chat with friends and family on Facebook or Zalo, even if they are far away.

Third, it helps us relax and have fun. We can watch YouTube, play games, or listen to music online.

The Internet makes our lives easier, more interesting, and more connected.

Second benefit,biquitous Access to Information and Knowledge: Having a smartphone means carrying the world's information in your pocket. You have instant access to search engines, news, educational content, reference materials, and real-time data (like weather, traffic, and stock prices), which empowers continuous learning and quick problem-solving.

Finally benefit ,a Single Tool for Productivity and Organization (The "Swiss Army Knife"): Smartphones have replaced dozens of separate physical items: a camera, GPS navigator, calculator, calendar, watch, alarm clock, portable music player, voice recorder, and paper notebook. This convergence allows you to manage schedules, banking, navigation, tasks, and media consumption all from one convenient device.

The Internet brings many benefits to our lives. It helps people communicate with others around the world quickly and easily. Students can find information and study online, while workers can do their jobs from home. The Internet also provides entertainment, such as music, movies, and games. It is an important invention because it connects people and makes the world smaller and smarter.

Secondly: smartphones provide access to the Internet, allowing users to search for information, study online, and stay updated with the latest news.

Thirdly: smartphones include helpful applications such as maps, health trackers, and online banking, which make daily life more convenient

The computer is one of the most important inventions in modern history. The first computer was created in the 1940s, and it has developed rapidly since then. Thanks to computers, people can work, study, and communicate more easily. Computers can store a large amount of information, solve complex problems, and connect people all over the world through the Internet. This invention has changed the way we live and work. Without computers, modern life would be much more difficult.

1. At home:

Benefit: It allows family members to stay in touch easily.

Example: For instance, parents can call their children to check if they got home safely.

At school: Benefit: Telephone helps students find information quickly. Example: Students can use their phones to search for lessons or study materials.

At work:
Benefit: It helps people communicate quickly with colleagues or clients.
Example: For example, employees can discuss urgent projects without meeting face to face. 2. At home:
Benefit: It allows family members to stay in touch easily.
Example: For instance, parents can call their children to check if they got home safely.

The second benefit : look up information ex: study and work information ,use learning apps

The third benefit: connect with friends and family ex: call video , ...

For example: zalo, messenger, facebook,…

Second benefit: reduce stress, relax after school

For example: playing games, listening to music, watching Tv

Final benefit: study English or any subject

For example: zoom, k12 online, google meets, duolingo

It is one of the most useful devices in modern life. The first benefit of the laptop is that it helps people work and study anywhere. For example, students can do homework or join online classes at home. The second benefit is that it allows us to connect with others easily. We can send emails, make video calls, or share documents quickly. The third benefit is that laptops provide entertainment. People can watch movies, play games, or listen to music after work. In conclusion, the laptop is very important and useful because it makes our life more convenient, connected, and enjoyable.

2. Support for study and work.For example, smartphone can be used to search for information, study online, do homework, take notes, store documents, or work remotely.

3. Entertainment and relaxation.For example, smartphone used for listening to music, watching movies, playing games, taking photos, recording videos, or using social media for entertainment.