Since entering the 21st century, people's living standards have undergone great changes, and it has become impossible to see cars before becoming now that every family can own one, which indirectly proves that the mainland has made great progress.
But when buying a car, many users have certain requirements for the appearance of the body, the entire body will be a look, a careful look at the owner will find that there will be a small corner on the roof of the car, what is this small corner, do not underestimate it, its role can be big!

The small horn on the roof is really called shark fin, because its appearance looks like the fin on the shark, this thing can not be underestimated, although it is only so big, not only used as a body decoration, can be used to receive signal antenna, the previous car design is not like this, is a diagonal long line, but now in order to make the car look more beautiful, it has been modified to this, especially after some height limits, there is a long antenna will always be scratched, However, it is designed so that there is no need to worry about this problem.
In the dry season, this small corner also has a magical function, can release static electricity, in fact, the surface of the car is very easy to produce static electricity, even in the dry season to close a door will be electrostatic to electrostatic electricity, with this small corner, it can absorb a large amount of static electricity from the car body, the static electricity is directed to the tail of the shark fin and release them, can protect the circuit inside the car.
There is also a way to reduce the air resistance encountered in the process of driving the car, especially when telling the driving, the speed is too fast will also lead to a large wind resistance around, with this shark fin, it can effectively reduce some of the wind resistance in the air, so that it can also achieve a fuel saving purpose.
The advantages of shark fins are more than these points, but also enhance your signal during driving, so don't underestimate any small part on the car, it can solve the small troubles encountered in real life very well.