Descripción de Carl Sagan on the great library of Alexandria:
Carl Sagan talks about the great library of Alexandria. He discusses the great written works which once existed in this library. This clip comes from Carl Sagan's Cosmos episode 1, "The Shores of the Cosmic Ocean."
Carl Sagan "100 Billion Galaxies each W/100 Billion Stars"
02:51 Mins | Visto 138860 veces
Carl Sagan on the Big Bang / the creation of the cosmos
09:32 Mins | Visto 58476 veces
Carl Sagan explains the geometry of our universe
04:36 Mins | Visto 88176 veces
Carl Sagan on the shape of the cosmos (curved/saddle/flat)
11:00 Mins | Visto 10823 veces
History Channel - Ancient Mysteries - The Lost Treasure of the Alexandria Library 1/5
09:19 Mins | Visto 85257 veces
One of Carl Sagan's most pertinent messages for humanity
01:53 Mins | Visto 522208 veces
History Channel - Ancient Mysteries - The Lost Treasure of the Alexandria Library 3/5
09:19 Mins | Visto 32118 veces
Carl Sagan - 'A Glorious Dawn' ft Stephen Hawking (Symphony of Science)
03:34 Mins | Visto 7508153 veces
History Channel - Ancient Mysteries - The Lost Treasure of the Alexandria Library 2/5
09:19 Mins | Visto 37897 veces
Symphony of Science - 'Our Place in the Cosmos' (ft. Sagan, Dawkins, Kaku, Jastrow)
04:21 Mins | Visto 1660499 veces