National Park Service researchers recorded ambient sound from all over the country to find out where there’s still stillness.
美國國家公園管理局研究人員從全國各處錄下環境聲音,以找出哪裡還保有寂靜。
It’s harder and harder to find peace and, especially, quiet. Just ask a field researcher deep in the wilderness. Even in the most remote parts of Alaska the sound of a jet crossing overhead is all too common.