Y 700 Words Essay on Filial Piety 40

It had been three years since his grandfather died, and on the third anniversary of his death, all his sons and grandchildren went to his grave to sweep the grave in order to show the last bit of filial piety.

Grandma left a few years earlier than grandpa, and I still remember that after grandma left, the original spirited grandfather suddenly became old. Even the gray hair that used to be energetic has become sluggish, and people at home are very worried. At first, everyone could still find time to chat with grandpa, but in fact, most of the time was listening to him talk about old things that I don't know how many times.

But everyone has their own things to be busy, and the focus is not on grandpa, everyone thinks that grandpa will accept such a fact after a long time, after all, everyone has to go through this time. Grandpa also seems to understand something, and he doesn't like to tell us about the past, but he is silent a lot, often holding grandma's **, and sometimes talking to grandma on **.

We actually know that grandpa is lonely, we are busy with our own study, life and work, and occasionally have time to accompany grandpa and talk to him inconsequentially. We know very well that grandpa is really old, and in his old age, he needs someone to talk to him, and he needs someone to care about him, maybe this can prove that he is still alive and interesting. But who of us can really understand this?

When the grandfather embarrassedly proposed to find a wife, none of the family agreed, or even strongly opposed. Of course, we, as juniors, have no right to speak, but we were also against it in our hearts at that time. People who are in their seventies are still looking for a wife, and they are not afraid of the jokes of the people around them!

That's what everybody thinks. All of a sudden, Grandpa felt even more lonely! The children he raised with his own hands never considered his feelings for the sake of his own face.

Although it is said that it is for the good of the old man, who really understands his heart? Who really understands his needs?

Since then, grandpa no longer mentions finding a wife, everyone has forgotten, but I have seen grandpa staring at grandma's ** a few times, with red circles in his eyes, of course I don't dare to disturb him. had to quit silently.

One morning in early winter, Grandpa never got up again, and when Dad went to call him, he found that Grandpa had left us forever. Walking peacefully and calmly, you can even see a faint smile on the corner of his mouth, maybe this is what he has been looking forward to, right?

Three years have passed, grandpa and grandma must be very happy in heaven, such a wish can be regarded as atonement for our ignorance at the beginning!

1。Succeeded in the imitation of a very peculiar small gas analyzer by a nasty fly. It has been installed in the cockpit of a spacecraft to detect the composition of the gases in the cabin.

2。From fireflies to artificial cold light;

3。Electric fish with volt batteries;

4。The downwind ears of jellyfish, imitating the structure and function of jellyfish ears, designed the jellyfish ear storm instrument, which can predict the storm 15 hours in advance, which is of great significance to the safety of navigation and fishery.

5。According to the visual principle of frog eyes, people have successfully developed an electronic frog eye. This electronic frog eye can identify objects of a specific shape with the same accuracy as a real frog eye.

After the electronic frog eye is installed in the radar system, the anti-jamming ability of the radar is greatly improved. This radar system can quickly and accurately identify specific shapes of aircraft, ships, missiles, etc. In particular, it can distinguish between real and fake missiles and prevent the real from being confused with the real.

Electronic frog eyes are also widely used in airports and traffic arteries. At the airport, it can monitor the take-off and landing of aircraft, and can issue an alarm if it detects that the aircraft is about to collide. In the traffic arteries, it can direct the driving of vehicles and prevent the occurrence of vehicle collisions.

6。According to the principle of the bat ultrasound locator, people also imitated the "pathfinder" for the blind. This pathfinder is equipped with an ultrasonic emitter that a blind person can carry to spot people on electric poles, steps, bridges, etc. Today, "ultrasound glasses" with a similar effect have also been made.

7。An incomplete photosynthesizer that mimics cyanobacteria will be designed to bionic photolyzed water, so that a large amount of hydrogen can be obtained.

8。Based on the study of the human skeletal muscular system and bioelectric control, a human augmenter - a walking machine has been imitated.

9。The hooks of modern cranes originated from the paws of many animals.

10。The roof corrugated roof mimics the scale armor of animals.

11。The oars mimic the fins of a fish.

12。The saw learns the mantis arm, or sawgrass.

13。Xanthium was inspired to invent Velcro.

14。Lobsters with a keen sense of smell provide ideas for people to make odor detectors.

15。Gecko toes offer an encouraging prospect for creating adhesive tapes that can be used over and over again.

16。The colloids produced by shellfish from their proteins are so strong that they can be used for everything from surgical sutures to ship repairs.