Islanders say they cannot escape mysterious humming(bbc.co.uk)8 ポイント·投稿者 mnem·昨年·2 コメントbbc.co.ukIslanders say they cannot escape mysterious humminghttps://www.bbc.co.uk/news/articles/c705y5079pko2 コメントコメントを投稿[–]r721·昨年返信https://en.wikipedia.org/wiki/The_Hum[–]duxup·昨年返信>She said it had been recorded at a low frequency of 50hz.If this is the case would not be a matter of traveling around the island to see where it is strongest and that might provide some sense of direction?