Why do veteran drivers usually only open one car window?
Car windows are almost the most prominent accessories, the size of the glass affects the lighting level and ventilation of the car.
During normal driving, some people will lower the window to cool down, instead of turning on the air conditioner to save fuel, but opening the window while the car is moving will cause the wind to blow into the car very strongly, increasing the wind resistance during the car's running. When the resistance increases, the car will have to face fuel consumption will also increase.
This is the reason why many experienced drivers often only open one window.
First, to ensure air circulation, for drivers driving at high speeds, opening the window will easily cause the driver's ears to be directly affected by air pressure. Therefore, experienced drivers will open a gap in the rear window to ensure air can flow into the car and still avoid the above situation.
Second, during driving, if the windows are always closed, the vibration of the car will cause the air pressure inside and outside the car to be uneven, in the long run will easily cause damage to the eardrum. The windows should be opened to ensure that the atmospheric pressure inside and outside the car is balanced.
In addition, many drivers often have the habit of opening the left window to observe the rearview mirror and the vehicles behind better. Even many people when reversing the car, in addition to looking at the rearview mirror, often stick their heads out the left window for easy and convenient observation.