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Voyage au centre de la Terre — Science étonnante #47

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What's really under our feet? An ocean of molten magma? *Notes related to the video : https://sciencetonnante.wordpress.com... Thanks to Marine Lasbleis (@miolette) for her help. her blog "Deep down" (w/ @ThmsLrn) : https://toutlabasendessous.wordpress.... Thanks to Nathanaël Schaeffer for the animation of the metal sphere in rotation. Facebook : http://www.facebook.com/sciencetonnante Twitter : http://www.twitter.com/dlouapre Abonnez-vous : https://www.youtube.com/scienceetonnante If you want to support me on Tipee : http://www.tipeee.com/science-etonnante My book : http://www.science-etonnante.com/redi...