When walking along the fence on the right side of this street [1] https://www.google.de/maps/@53.5546251,9.8651002,3a,75y,192.33h,90t/data=!3m6!1e1!3m4!1s-pNeX

When walking along the fence on the right side of this street [1] https://www.google.de/maps/@53.5546251,9.8651002,3a,75y,192.33h,90t/data=!3m6!1e1!3m4!1s-pNeXAXSpeJcy9-YkD8tdA!2e0!7i13312!8i6656 https://www.google.de/maps/@53.5546251,9.8651002,3a,75y,192.... it feels like I could count every single echo of my steps from every single element of the fence if I could count fast enough. Similar when riding my bicycle slowly down there (rarely, because downwards, so I'm doing 50 kph there usually), ring my bell, or click my tongue. edit: I mean, I'm hearing the difference in the delay depending on the distance.