Why do fly swatters make grids?

Reason: The head of the fly swatter is mostly square and has small holes that ensure that the flies are hit. Without small holes, flies can escape based on changes in temperature, humidity, and flow of air.

In addition, when a person swatts a fly, the fly will fly away very quickly because of the small size, light weight and field angle of the insect compound eye visual system.

Large size, high temporal resolution, and sensitive detection of moving targets make it have advantages that cannot be matched by other imaging methods, but the mechanism of the insect compound eye to quickly perceive the movement trajectory of object objects is not clear.

The size of the compound eyes of insects in nature is extremely small, and it is theoretically impossible to make clear imaging, but insects generally have strong phototaxis, and the light is strong compared to clear imaging.

The amount of information is relatively small, which is of great significance for insects that require a very short reaction time to ensure survival.

The grid-like fly swatter reduces the resistance of the air and allows for quick swatting of mosquitoes. Without a grid, the wind generated when swatting mosquitoes will scare them away. I guess so.

One is that the grid is breathable, and the other is that the fly is relatively small, and the grid can easily slap him!

Someone once did an experiment in which the hit rate of swatting a fly with a piece of cardboard was only 20 percent, but digging a few holes in this piece of cardboard actually increased the hit rate to 80 percent. Experiments have shown that fly swatters have small holes that make it easier to hit flies. Why?

What is the purpose of these holes?

In fact, there are many fine hairs on the fly's body, and these fine hairs can not only "taste" the delicious food at the moment when the fly stays, but also feel the changes in the temperature, humidity and air flow of the surrounding environment. When a fly is swatted with non-porous cardboard, the swatter moves through the air to create a stream of air around it, and the fly notices this change through the fine hairs on its body and flies away.

If you hit it with a fly swatter with holes, it's a different story. When the paddle moves in the air, the air below can pass through the small holes, and there is no strong air current, so it is not easy for flies to detect danger coming, and we can easily kill it.

People can shoot mosquitoes to death when they are usually killed, but they must use a fly swatter to fight a fly, because flies have compound eyes, a large field of vision, and a very fast take-off speed, flies can quickly take off in seconds.

Not only that, flies are very sensitive to the movement and changes of air currents, and if you use your hands to hit flies, there are no gaps in your hands. If you hit the fly directly, the air flow will change, that is, the wind will be generated, but with a fly swatter, it will be different. There are many pores on the fly swatter, and the air flow can flow away from the pores, so it can hit the flies without causing a large change in the air flow.

What if the flies escape from the hole?

Because it is not a mesh, it will use a lot of aerodynamic force when used, and the flies will flee back.

Reduce the flow of air so that the flies don't fly!

Reduces air resistance and makes it easy to hit flies.

I think it's for air leakage and to reduce the effect of airflow on flies.

It is similar to the structure of its eyes. Easy to hit.

Reduces air resistance and is faster when hitting

You can not leak flies, and the material is also saved.

Because the fly swatter is made into a mesh shape to breathe the wind, it will not produce air currents when hitting flies, and the flies can't feel the wind and grass, so they can be killed at once.

Please, comrades, let's not mislead the children, okay?!

The reason why fly swatters have mesh is because there are organs on the wings of flies that are sensitive to air flow, and if there is no mesh, a strong air flow will be generated when hitting flies, and flies will fly away quickly after feeling this air flow, so fly swatters have mesh on them.

In order to allow the air to flow quickly, reduce the resistance, and increase the speed or the flies will run away; It is also allowed to allow the airflow to pass through quickly, so that the flies do not feel it.

In fact, in one sentence: in order to better eliminate flies!

The compound eye of the fly is more sensitive, and if you really wave it, the air vibration is so big, it will fly early!

Reduces drag, does not generate wind, and increases speed.

The discoloration of the surface of the potato is the result of the phenolic oxidation in the potato, and the fly swatter is made into a grid shape just like the badminton racket and tennis racket do to reduce the resistance to reduce the disturbance to the air, and the classification of the causes of fog is quite complex, such as advection fog, frontal fog, etc., but it is estimated that you are asking about the most common radiation fog, which is formed by the air due to radiation cooling to reach supersaturation, mainly in the night or morning when the sky is clear, breezy, near the ground, and water vapor is relatively abundant. At this time, the sky is cloudless, the heat from the ground quickly radiates outward, and the air temperature near the surface layer drops rapidly. If there is a lot of water vapor in the air, it will quickly reach supersaturation and condense into fog.

It is convenient for air flow and has low resistance.

Because, if there are many holes, when the fly swatter is waved, the wind passes through the holes, and it will not cause strong winds, and the flies will not feel dangerous.

Easy to kill flies.

When you hit a fly with a board or a book, you probably won't be able to hit it, because when it's a long distance, the fly will feel it, and the wind will be too strong.

Reduce resistance when shooting.

Material savings.