Japanese people invented the Musical Road! I know that Japan is the country with the most interesting inventions, but a Musical Road !?!
In Japan there are three road portions in three different locations which have this property. Small portions on the road are making different sounds when a car passes over them. Japanese calculated that the optimum speed for obtaining the best “hit” is at 45 km/h. A slow “hit” I could say! 🙂
For the best audition you have to have good tires and the engine has to be noiseless.
Soon, the Nippon drivers could choose their trips according to what song they want to hear! 🙂