MYSTERY 10 1991 The quotUpsweepquot Sound

############################# Video Source: www.youtube.com/watch?v=4LEJOsqLY5Q

This unidentified Deep Sea sound known as "Upsweep" was recorded by The National Oceanic & Atmospheric Administration (NOAA) in 1991.Here it is presented at ...

Mystery, biggest, greatest, mysteries, Upsweep, sound, strange, deep, sea, ocean, unexplained, NOAA, sounds
#############################