How far does sound travel underwater?

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Discussion Overview

The discussion centers around the distance sound travels underwater compared to air, exploring factors influencing sound propagation in different mediums, particularly focusing on absorption and frequency effects. Participants seek to understand the underlying reasons for any differences in travel distance.

Discussion Character

  • Exploratory, Conceptual clarification, Debate/contested

Main Points Raised

  • One participant inquires about the distance sound travels underwater and whether it travels further than in air, suggesting a connection to density.
  • Another participant notes that the distance sound travels is influenced by absorption, implying that lower absorption allows for greater distance.
  • A participant mentions that whales can communicate over vast distances using low-frequency sounds, indicating that sound can travel long distances underwater.
  • Further elaboration suggests that whales can produce sounds powerful enough to cavitate water, with a claim that such sounds could potentially be heard across polar distances.

Areas of Agreement / Disagreement

Participants express varying views on the factors affecting sound travel distance, with some focusing on absorption while others highlight biological examples. No consensus is reached on the primary reasons for differences in sound travel between water and air.

Contextual Notes

The discussion does not delve into specific mathematical models or empirical data, leaving assumptions about sound absorption and its effects on distance somewhat unresolved.

hennas
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Hi,
How far does sound travel underwater, and more importantly does it travel further in water than in air? If so why? I know that sound travels faster through water than air for obvious reasons (density), and I intuitively assume further, but I cannot explain why. Any help is appreciated.
Thanks
 
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This is not explanatory, but whales, using very low frequency sound, can communicate across oceans.

KM
 
To expand a little on what Kenneth Mann said, whales can emit sounds so loud they cavitate water. I have heard it suggested that before the days of motorized ships it would have been possible for a whale at the north pole to have been heard by one at the sourth pole.
 

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