Why do veteran drivers usually only open one car window?
Car windows are almost the most prominent accessory, the size of the glass affects the level of lighting and ventilation of the car.
During normal driving, some people will roll down the windows to cool down, instead of turning on the air conditioner to save fuel, but opening the windows while the car is moving will cause the wind to blow into the car very strongly, increasing the wind resistance during the car's movement. When the resistance increases, the car will have to face the 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, if the windows are always closed while driving, the vibration of the car will cause the air pressure inside and outside the car to be uneven, which will easily damage the eardrum in the long run. The windows should be opened to ensure that the air pressure inside and outside the car is balanced.
In addition, many drivers often have the habit of opening the left window to better observe the rearview mirror and the vehicles behind. Even when reversing, many people, in addition to looking at the rearview mirror, often stick their heads out the left window for easy and convenient observation.