Pourquoi les points de Lagrange sont-ils stratégiques?

Pourquoi les points de Lagrange sont-ils stra...

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Rediffusion - Les animaux connaissent-ils le deuil ?

Oui, plusieurs espèces animales semblent manifester des comportements assimilables au deuil lorsqu'elles perdent un proche. Bien que le concept du deuil tel que nous l'entendons chez les humains soit difficile à prouver scientifiquement chez les animaux, de nombreuses observat ...

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Rediffusion - Pourquoi l’URSS a asséché la Mer d’Aral ?

La mer d’Aral, autrefois l’un des plus grands lacs du monde, est aujourd’hui l’un des plus grands désastres écologiques causés par l’homme. Située en Asie centrale, à cheval entre le Kazakhstan et l’Ouzbékistan, cette mer intérieure a commencé à se réduire drastiquement à part ...

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