sexta-feira, dezembro 07, 2012

Carl Sagan - Youtube

Videos do Youtube da autoria de Carl Sagan: www.youtube.com/watch?v=JNKyEVtIfjE ► www.youtube.com/watch?v=eKJAFIyJ6tI www.youtube.com/watch?v=7br2MqrfWxA www.youtube.com/watch?v=rVCE0s_sgBk www.youtube.com/watch?v=jvO9ziy6NGc www.youtube.com/watch?v=0SYxcBqg8Fo www.youtube.com/watch?v=fVqz-IRck1I

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