What Revelation Essay 800 Words 10

After reading the book Animal World, I learned about the life characteristics and special abilities of woodpeckers and anteaters, and from them, I suddenly thought of a question, and at the same time got an inspiration:

In rural orchards, we often find pests burrowing into tree trunks and ripe fruits, and in order to protect the orchards, farmers have to constantly spray pesticides in large quantities. Not only is the cost high, but also when people eat it, the excessive pesticides make people daunting, if the pest control is not timely, people have to cut down those "incurable" fruit trees painfully. In the modern countryside, it is impossible to have so many woodpeckers to help the fruit trees to see a doctor.

Nature has taught us a lot of things, airplanes are based on dragonflies, and manicures are modeled after whales at the bottom of the sea, so I thought: why don't we build a lightweight exterminator based on the beak of a woodpecker and the tongue of an anteater? In this exterminator, we can install a computer chip, so that it can accurately detect diseased trees, and then, we can press a red button on the handle, from which a sharp, hooked steel pipe like a woodpecker's beak will pop out, it can accurately punch a very small hole in the tree of the pest, and then hook it out with a hooked steel pipe mouth.

What if it's termites? Don't panic, we can put the steel pipe mouth in first, and then, press the green jian, a tongue that imitates an anteater will bounce from it, and the long sticky tongue will be easily wiped out as soon as it "drills" into the hole.

From the woodpeckers and anteaters foraging, we got an inspiration and thus an innovation.

Sharpening the knife for me.

On a Sunday morning, the weather was clear, the sun was shining, the sky was cloudless, and I was playing freely. At this time, my mother came up to me and said, "There is a kitchen knife with raw embroidery, please sharpen it." I said yes without a word.

As the saying goes, "It's easier said to see than done." I didn't think it was true at all, and after sharpening the knife for a while, my hands were so tired that I couldn't cry or laugh.

I wanted to give up sharpening knives, and I got by, and at most I was scolded by my mother. But looking at the rusty knife edge, it seemed to be smug and laughing at me: "It's really retarded, and I give up halfway."

At this time, my mind clearly came up with the story of the teacher who told me in class. It is said that Li Bai often played and skipped school when he was a child, and once, Li Bai saw an old lady by the river grinding an iron pestle on the way to skip school. Curiosity made him involuntarily step forward, and Li Bai asked the old lady:

Why did you have nothing to do and sharpen the iron pestle, isn't it in vain? The old lady said earnestly, "Son, I am not looking for trouble, I am sharpening an embroidery needle with this iron pestle."

When Li Bai heard this, he couldn't help laughing, and said to the old lady: "This is impossible, the iron pestle is so thick, and the embroidery needle is so small, how long and what month will it be grinded?" The old lady said solemnly

As long as you have patience and perseverance, you can do big things. The so-called freezing three feet is not a day's cold. When Li Bai heard this, he felt very ashamed, because he had no patience for anything before.

After that, he worked hard every day, and finally became a famous poet in the Tang Dynasty.

I thought, the old lady has the spirit of perseverance, why can't I? So, I calmed down and started sharpening my knives again. I put the kitchen knife on top of the whetstone and sharpened it as hard as I could, and the whetstone made a rustling, rustling sound, as if a spring silkworm was eating mulberry leaves.

I grinded with all my might, rustling, rustling louder, as if the spring rain was moistening the earth. After a while, the edge of the knife became extremely sharp, and it appeared golden in the sunlight. Looking at the sharp knife edge, it seemed to praise me convincingly:

A small capable person can really bear hardships and stand hard work. ”

Through this incident, I have learned: there is nothing difficult in the world, only afraid of those who have a heart. If you want to see the end, pay attention everywhere.

I was home alone on Sunday, and after I finished my homework, I turned on the TV and saw a ship moving across the ocean. So I had the idea to make a small electric boat myself.

Just do it. I started by looking for materials: a rectangular piece of styrofoam, a knife, stickers, glue, hard paper, toothpicks, red paper, batteries, wires, motors, propellers. Once the tools are ready, it's time to get started.

I'll do the hull first. It was cut out of plastic foam to follow the shape of the boat, and in order to make the boat a little more beautiful, the hull was decorated with colorful stickers. Then a piece of cardboard was folded into small cabins, glued to the boat, and a few cannons were made, and a few villains were found to be placed on the boat to control the cannons.

The red paper was cut into a red flag, glued to a toothpick, and inserted in the boat, so that the hull of the ship was ready.

Next, it's time to drive the boat. I set the motor and propeller in place, then connected the motor to the battery with wires, and finally pressed the drive to the boat.

The installation is complete and the sea trials begin. I turned on the power control switch and put the boat in the water, haha! My ** is about to set sail! Before I could rejoice, the problem arose, the boat was only spinning in the water, just not moving forward. Alas! What's going on?

In order to figure this out, I searched a lot of books but found nothing, I thought of the computer, and finally found the answer on the Internet: it turns out that the ship is controlled by the rotation of the rudder. It dawned on me and hurriedly put the rudder on the ship, hehe! The results can be imagined.