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Why windshield wipers always leave a dirty trail at the driver’s eye level

  • December 28, 2022
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Nothing irritates the driver more than the inoperability of the wiper blades. It not only reduces visibility. Due to the poor visibility, we start to get nervous and

Why windshield wipers always leave a dirty trail at the driver’s eye level
Nothing irritates the driver more than the inoperability of the wiper blades. It not only reduces visibility. Due to the poor visibility, we start to get nervous and we are quite capable of making a dangerous mistake. And by a strange coincidence, the brushes leave dirty marks right before the eyes of the “mate”. About why this happens, the portal “AvtoVzglyad” tells.

Windshield wipers and, of course, their brushes appeared in the automotive world almost immediately after windshields. On November 10, 1903, the US Patent Office granted patent #743801 to inventor Mary Anderson. The lady, based on her observations of drivers, suggested a device for cleaning windows from ice, snow and water with mud. Initially, no one was interested in the patent: car companies considered this invention complicated and unnecessary. However, as the number of cars and speeds increased, windshield wipers proved to be a necessary part of any car.

After all, with the help of the eyes, a person receives up to 70% of information about the world around him. And it is clear that dirty glass made driving almost impossible. True, soon motorists drew attention to one strange thing. No matter how good the wipers are, they always leave dirty marks on the glass. And no matter how hard the developers try, these marks always remain at eye level, which impairs visibility and makes driving as difficult as possible. Why is that?

It is possible that the windshield is blown at eye level with the strongest stream of incoming air, but closer to the edges the intensity decreases. As a result, the middle part of the brush begins to bounce off the glass and tension is created. In addition, the newly purchased and installed brushes always behave in an exemplary manner and even remove traces of dirt from the glass. But as soon as you start moving and driving away from the parts store, everything changes dramatically. They derisively stop cleaning glass where it is most needed. But all other areas will be perfectly transparent.

And this effect does not depend at all on how expensive and sophisticated the brush was purchased. It can be with a silicone insert, frameless and even with aerodynamic elements. Nothing will change. We drove away from the store and that’s it – the brushes don’t work the way they should. And it seems that the problem is not in the design flaws of a particular device, as it almost always manifests itself.

Perhaps, in this way, the caring universe warns us that we should not rush anywhere, but that it is better to slow down and calmly go to our destination. Or the other way around: this is how the evil essence of the world in which we are forced to live is expressed. And in this way he is trying to fight the overpopulation of the planet. However, this phenomenon rather refers to the peculiarities of human perception when assessing the situation. As long as everything is in order and the brushes do the job, we just don’t pay attention to how they work exactly. Even if they don’t clean glass as well as we’d like.

But as soon as stains and dirt remain on the glass directly in front of our eyes, we begin to experience discomfort and stress. As a result, this situation begins to be particularly clearly committed to memory. And it turns out that we remember only those moments when the work of the janitors caused us inconvenience. And everything else remains beyond our perception. That forms the basis for mystical conjectures. Therefore, at the first sign of poor quality brushes, it is worth replacing them with new ones. Or at least replace the rubber bands: nothing should cause additional problems while driving.

Photo autodeal.com

Windshield wipers and, of course, their brushes appeared in the automotive world almost immediately after windshields. On November 10, 1903, the US Patent Office granted patent #743801 to inventor Mary Anderson. The lady, based on her observations of drivers, suggested a device for cleaning windows from ice, snow and water with mud. Initially, no one was interested in the patent: car companies considered this invention complicated and unnecessary. However, as the number of cars and speeds increased, windshield wipers proved to be a necessary part of any car.

After all, with the help of the eyes, a person receives up to 70% of information about the world around him. And it is clear that dirty glass made driving almost impossible. True, soon motorists drew attention to one strange thing. No matter how good the wipers are, they always leave dirty marks on the glass. And no matter how hard the developers try, these marks always remain at eye level, which impairs visibility and makes driving as difficult as possible. Why is that?

It is possible that the windshield is blown at eye level with the strongest stream of incoming air, but closer to the edges the intensity decreases. As a result, the middle part of the brush begins to bounce off the glass and tension is created. In addition, the newly purchased and installed brushes always behave in an exemplary manner and even remove traces of dirt from the glass. But once you start moving and driving away from the parts store, everything changes dramatically. They derisively stop cleaning glass where it is most needed. But all other areas will be perfectly transparent.

And this effect does not depend at all on how expensive and sophisticated the brush was purchased. It can be with a silicone insert, frameless and even with aerodynamic elements. Nothing will change. We drove away from the store and that’s it – the brushes don’t work the way they should. And it seems that the problem is not in the flaws in the design of a particular device, since it manifests itself almost all the time.

Perhaps, in this way, the caring universe warns us that we should not rush anywhere, but that it is better to slow down and calmly go to our destination. Or the other way around: this is how the evil essence of the world in which we are forced to live is expressed. And in this way he is trying to fight the overpopulation of the planet. However, this phenomenon rather refers to the peculiarities of human perception when assessing the situation. As long as everything is in order and the brushes are doing their job, we just don’t pay attention to how they work exactly. Even if they don’t clean glass as well as we’d like.

But as soon as stains and dirt remain on the glass directly in front of our eyes, we begin to experience discomfort and stress. As a result, this situation begins to be particularly clearly committed to memory. And it turns out that we remember only those moments when the work of the janitors caused us inconvenience. And everything else remains beyond our perception. That forms the basis for mystical conjectures. Therefore, at the first sign of poor quality brushes, it is worth replacing them with new ones. Or at least replace the rubber bands: nothing should cause additional problems while driving.

Source: Avto Vzglyad

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