How Sonar is revealing the secrets of the sea, lakes and rivers.

From Curious Droid.

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We live on a planet that 70% of is covered in water but if anything falls in to deep water it becomes increasingly difficult to find. However, Sonar technology originally developed to find submarines in wartime is being used to map the seabed and find things that have been lost for years if not decades. This is the story of sonar and how it is now being used to find not only submarines but also anything from WW2 planes to missing persons cold cases.

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Written, Researched and Presented by Paul Shillito

Images and footage: Images and footage : NASA, ESA, ESO, Annelie on Tour, SB C,Chandra X-ray Observatory, caltech, Jade Timelapse

SOLVED 21 Year Old Missing Persons Case (Erin Foster & Jeremy Bechtel)

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Eριχθόνιος JL
Adriaan von Grobbe
Alex K
Alipasha Sadri
Andrew Gaess
Andrew Smith
Brian Kelly
Carl Soderstrom
Charles Thacker
Collin Copfer
Daniel Armer
erik ahrsjo
Florian Müller
George Bishop II
Glenn Dickinson
Jesse Postier
John & Becki Johnston
John Zelinka
Jonathan Travers
Ken Schwarz
László Antal
Lorne Diebel
Mark Heslop
Matti J Malkia
Patrick M Brennan
Paul Freed
Paul Shutler
Peter Engrav
Robert Sanges
Ryan Emmenegger
stefan hufenbach
Steve Ehrmann
Steve J – LakeCountySpacePort
Tim Alberstein
Tyron Muenzer
Will Lowe