Could a custom car horn be the world's most polite invention?
In this DIY project, Mark Rober demonstrates how he re-engineered a standard car horn to replace aggressive noise with a series of friendly, non-emergency sounds designed for courtesy.
The project focuses on a custom-built system that replaces the standard, jarring car horn with three distinct audio profiles. The centerpiece is the 'Courtesy Honk,' a sequence of two quick, gentle chirps. Unlike a traditional horn, this version is specifically engineered to be less loud than a standard car horn, making it ideal for getting a driver's attention in non-emergency situations without causing unnecessary alarm.
Source: NICEST Car Horn Ever- DIY
