What are the stories of children s invention activities?

1. The story of the photocopier, at first, Edison's invention of paraffin paper was only commonly used in the packaging materials of food and candy, and later he tried to carve the outline of the text on the wax paper to form a paraffin lettering paper plate, and then used the ink roller to roll on the engraved paraffin paper, and the wonderful thing happened, and the clear handwriting appeared on the white paper. After many experiments, in 1976, Edison began to produce the photocopier he invented. All of a sudden, institutions, schools, institutions, and groups have adopted this kind of wax paper mimeographing machine.

Because of the popularity of Edison's photocopier, which became popular all over the world, Edison deeply experienced that it was necessary to invent something that was universally and deeply needed.

2. The story of the steam engine, Watt is a child of extraordinary intelligence, he is diligent and studious, brave to explore, and most interested in invention and creation. One day my father's friend came to visit, and I happened to see little Watt sitting by the stove in a daze, with a pen and paper in his hand, and many drawings on the ground. Once, the whole family went out of the house, leaving Watt alone as a janitor.

He stared blankly at the teapot on the stove, which was about to boil, and the lid of the kettle was lifted by the steam, and the ...... was lifted up and downHe thought: The power of this steam is so great, if you can make a bigger furnace and boil water in a large boiler, the water vapor produced will definitely be dozens or hundreds of times greater than this. Isn't it possible to use it to make power for all kinds of machinery to replace a lot of manpower?

This is the story of "Watt's invention of the steam engine" in later legends.

When the first man appeared on earth, he found it empty.

He walked, walked, and was very tired. "If there's such a thing in the spine," he thought, "how nice it would be for me to sit on it and rest for a while." "He invented the chair. Sitting on a chair and looking into the distance, it's so beautiful.

It's beautiful. Hmmm......It's not perfect. "If there is such a thing," he thought, "how nice it would be to have a square thing with legs stretched out below and elbows on top." "He invented the table. Stretch your legs and elbows and look into the distance, it's so beautiful.

A gust of wind blew in the distance, bringing with it large dark clouds, and it was raining. It sucks. "If there was such a thing," he thought, "how nice it would be to have something on top to shelter me from the elements."

He invented the house. Move the table and chair in, sit down, stretch your legs and elbows, open the window, and look into the distance, the rain scene, so beautiful.

In the rain, another man walked towards the house.

Can I come in and stay for a while? ”

Of course, please. ”

He showed his invention to the people who came:

Chairs that can be sat on are branches; a table to stretch your legs and elbows; A house with four walls and a roof that provides shelter from the wind and rain; doors for entry and exit; There is also a window where you can see the view.

The visitor carefully studied these wonderful inventions and gave heartfelt compliments.

The compliment made him proud: "Dear neighbor, show me your invention too." ”

The visitor bowed his head and was silent.

He simply didn't have the courage to say that it was he, who invented it.

Wind and rain.