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Astrophysicist Explains Gravity in 5 Levels of Difficulty | WIRED

Astrophysicist Janna Levin, PhD, is asked to explain the concept of gravity to 5 different people; a child, a teen, a college student, a grad student, and an expert.

Levin is the Claire Tow Professor of Physics & Astronomy at Barnard College of C...

Astrophysicist Explains Gravity in 5 Levels of Difficulty | WIRED

Astrophysicist Janna Levin, PhD, is asked to explain the concept of gravity to 5 different people; a child, a teen, a college student, a grad student, and an expert.

Levin is the Claire Tow Professor of Physics & Astronomy at Barnard College of C...

MARCEL_MENT_V1

Court métrage contre le harcèlement scolaire, collège Bernard de Ventadour, Bagnols sur Cèze

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Bernard Friot : Libérer le travail du capitalisme

Conférence-débat avec Bernard Friot, organisée par Attac Isère, le 30 novembre 2011, à la Maison du tourisme de Grenoble. Basée sur sa dernière publication avec Frédéric Lordon : « En travail. Conversation sur le communisme ».