How To Hear Halfway Around The World

Thanks to CTBTO for sponsoring this video:

Sounds in the ocean can travel more than 10,000 miles – that’s halfway around the world! Here’s how.

To learn more about this topic, start your googling with these keywords:
Refraction: the bending of a sound wave based on changes in the wave’s speed

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This video was produced by:
Kate Yoshida | Script Writer, Narrator and Director
Arcadi Garcia Rius | Illustration, Video Editing and Animation
Nathaniel Schroeder | Music

MinuteEarth is produced by Neptune Studios LLC

Sarah Berman • Arcadi Garcia Rius
David Goldenberg • Julián Gustavo Gómez
Melissa Hayes • Alex Reich • Henry Reich
Peter Reich • Ever Salazar • Kate Yoshida

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Heaney, K.D., Kuperman, W.A., and McDonald, B. E. (1960). Perth-Bermuda sound propagation: Adiabatic mode interpretation. Journal of the Acoustical Society of America, 90, 2586–2594, 1991.

Munk, W.H, Spindel, R.C., Baggeroer, A., Birdsall, T. G. (1994). The Heard Island Feasibility Test, Journal of the Acoustical Society of America, 96, 2330–2342.

Payne, R. S., and Webb, D. (1971). Orientation by means of long range acoustic signaling in baleen whales. Annals of the New York Academy of Sciences 188:110–141.

Shockley, R. C., Northrop, J., Hansen, P. G. Hartdegen, C. (1982) SOFAR propagation paths from Australia to Bermuda: Comparision of signal speed algorithms and experiments, Journal of the Acoustical Society of America, 71, 51–60.

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