*The invention of the fountain pen is a matter of debate and controversy . Different designs and prototypes of pens that could hold ink and write continuously existed before the 19th century. However,   Petrache Poenaru is generally credited with the invention of the fountain pen in his 1827 French patent for a pen with a barrel (笔杆)made from a large swan quill（天鹅羽毛).Some also consider Lewis Waterman as the inventor of the first modern, functional, and non-leaking fountain pen in his 1884 patent 

*It can help people write beautiful characters no matter in English or Chinese and so on.

*We are still using fountain pen today.In fact,more and more people don’t want to use it to write because they can use more convenient tool to write,for example,using apple pencil on ipad or typing on the computer or phone,but as known as I am concerned,a large number of primary school students still use it to do their homework.

*It have changed a lot over the years because of the development of hard plastics.In China market,we can find all kinds of fountain pens that are made different materials,such as plastic,rubber,and acrylic acid(丙烯酸).

Printing is one of four great inventions of Han working people in ancient China.It began with the engraving printing technique of the Tang Dynasty.

Up to now,Chinese people no longer use ancient printing,because with the rapid growth of printing varieties and quantities,each printed book has to be engraved once,which consume considerable manpower and material resources.

People will get used to ChatGPT very quickly and they won't be able to live without it - just like everyone uses search engines now.

Chatgpe is a useful tool for everyone.If you have some problems about study,life or even emotion,you can find some answers or solutions  which can help you how to solve problems.To be honest,Chatgpt likes an encyclopaedia ,so more and more people are addicted to this app.

AI AND PROFESSIONS

Al will help most professions do their jobs more quickly.

With the science and technology developing,AI technology gradually becomes more and more mature.As far as I am know,AI can automatically operate to help ordinary workers to free both hands.For example,a floor cleaning robot can help family do some housework.

AI AND SOCIETY

We should be really careful because Al is becoming smarter than us. Who knows what it will be able to do tomorrow?

Although AI haven’t the brain, it likes a smart person who can also learn or copy people’s behavior. I think that the world may one day be full of AI which will fight with people in order to occupy the world in the future.