What does it mean when a car makes a sound while reversing?

[LaColin]

When a car makes a sound while reversing, it may be due to hitting something. Here is some relevant information about cars: 1. Introduction: In 1680, the famous British scientist Newton conceived a plan for a jet-powered car, using steam jets to propel the vehicle, but he was unable to build a working prototype. 2. Gasoline: 1885 was a year of decisive breakthroughs in automobile invention. At that time, Benz, who worked in the same factory as Daimler, was also researching cars. 3. Electricity: The world's first research on electric vehicles was conducted by Hungarian engineer Ányos Jedlik in 1828, who created an electric transmission device in his laboratory. The first practical electric vehicle was invented by American Anderson between 1832 and 1839. The battery used in this electric vehicle was relatively simple and could not be recharged.