50 years of Deep Ocean Observations

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50 Years of Deep Ocean Observations

A presentation on the still unsurpassed deep sea dive by two scientist-explorers opening the way to marine research at great ocean depth.
On 23 January 1960, the bathyscaphe Trieste completed the deepest manned dive ever, setting down on the floor of the Mariana Trench in the Pacific. On board were two scientist-explorers, the Swiss oceanographer Jacques Piccard, son of the bathyscaphe's inventor Auguste Piccard, and US Navy lieutenant Don Walsh. At 1 pm, after a four and a half hour descent into the trench, the two men reached a depth of 11,521 metres according to their instruments - later revised to 10,916 metres - in keeping with the water's density and temperature. Other dives, conducted by remote-controlled underwater robots, have since taken place. But the record-breaking manned dive of Jacques Piccard and Don Walsh remains unequalled to this day. Don Walsh will speak about his experience and we will learn about the importance of deep ocean observations.


Type of Event Special Events
Start 24.03.2010 15:00 local time
End 24.03.2010 16:00 local time
Date to be fixed 0
Focal point Reed, Christina
Country France
City Paris
Venue UNESCO Headquarters/Siège de l'UNESCO
Street 7 place de Fontenoy
Room Room XI
Permanent Delegation Contact
Major Programme
Language of Event English, French
Estimated number of participants
Official Website
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