Essay My Invention 400 Meters, My Invention Essay 300 Words

Students need to ask for a lot of pens in class, which is very troublesome, and the "multi-functional pen" I invented can solve this problem. Return.

I've always wanted to invent a copy of the school bag.

I gave it a name, called it "Wind and Fire Du Lun School Bag". Many children will frown when they see the heavy schoolbag, which makes us very uncomfortable and affects our physical development. So I came up with the idea of inventing this bag called "Hot Wheels".

This schoolbag has four major functions, one is anti-theft. It can automatically identify the owner, not the owner's scent, the schoolbag can not be opened permanently; The second is automatic sorting. It can automatically classify the content and courses that children learn every day, so that children can find books and homework left by teachers; The third is to be on call.

This bag has a voice-activated device. As long as the child shouts out the password of the school bag, it will find the owner by itself; Fourth, jet devices. The jet equipment installed at the bottom of this school bag is powered by solar absorbers, which can move with the child, and there is no need for the child to carry a heavy school bag on their own, if you don't want it to fly in the sky, you can use the remote control in your hand to let it run behind you like a racing car.

For this ideal, I will make unremitting efforts to study science and technology, so that my dream invention can become a reality, and let the children join me.

One rainy day, I snorted.

The umbrella went to school, because it was very windy, so no matter how I took the umbrella, my clothes were still wet.

Many. When I got home, it occurred to me: it would be nice to have an umbrella that could be moved, so that my clothes wouldn't get so wet. As soon as I said it, I set out to design an umbrella that could be moved.

First of all, I think that this kind of movable umbrella should have a beautiful "clothes", and when opened, it will be like a flower blooming in the rain. Secondly, a foldable "ten" is installed at the junction of the umbrella handle and the umbrella surface

The zigzag track is connected by a pulley, and according to the change of wind direction, the handle can slide freely in the track, so that a simple and movable umbrella is ready. In the future, when it rains, no matter how strong the wind is, I am not afraid.

When the wind blows from the right, I move the handle to the left of the ten-shaped track, so that the area on the right side of the umbrella increases. When the wind blew from the left, I moved the umbrella handle to the right of the "ten" track, to the left of the umbrella.

The area will also increase, so you don't have to worry about rain getting wet.

What do you think? This movable umbrella I invented is good!

What will the world look like in the future? What do you want to invent, and what does it look like and do? Please use your imagination to write. Just write it like that.

Topic: Jetpacks.

Actually, I don't know what the content is?

T Klaas, good, good, tastes great.

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