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Legendary ocean explorer Robert Ballard (he found Titanic) takes us on a mindbending trip to hidden worlds underwater, where he and other researchers are finding unexpected life, resources, even new mountains. He makes a case for serious exploration and mapping -- Google Ocean, anyone? (Recorded February 2008 in Monterey, California. Duration: 18:19.)
Voir particulièrement à partir de la 15e minute pour les allusions à l'école.