Carl Sagan on Drake Equation
From Cosmos, episode 12 "The Encyclopaedia Galactica"
Canal: Howto & Style
Añadido: November 16, 2006 at 2:44 am
Autor: undercoverkptic
Duración: 08:20
Puntuación: 4.90
Reproducciones: 60444
Etiquetas: Cosmos Drake Sagan SETI
Comentarios
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CarlosDeJuan (September 29, 2008 at 3:26 am)
What if there were a civilization at least one, that survived for over a million years or even billion....? Now that's the question for the day...
Elvisdogg (September 18, 2008 at 9:36 pm)
All the math he did was for just our own single galaxy. But there are billions of galaxies...
Arikiel (September 14, 2008 at 2:17 am)
This was before they developed the idea about the habitable band of the galaxy. That would drastically reduce the number.It's my belief that life is the exception rather then the rule. However as vast as the cosmos is there's plenty of room for even the exception to take hold. Though with such vast spaces between us I doubt we'll ever actually come in contact with any extraterrestrial life.
SpoolDonkey (September 13, 2008 at 10:24 pm)
well, that depends, if you mean that because SETI only broadcast on the hydrogen frequency then yes i agree. but i think if we broadcast on more frequencys it will help the message get through better, but even so... we need to know what direction to broadcast in to have any chance.SETI just got a load more money from private investor, not they have 1000 times more chance of finding something, however... thats still only a 1% chance, better than 0.001% though :)
educassiano (September 13, 2008 at 10:06 pm)
there is no way to comunicate with them... all the space betwen the systems and otrher stuff...
SpoolDonkey (September 7, 2008 at 11:03 pm)
lol... first off he is talking about our galaxy, the drake equation i think it too loose and too general to ever have a guess at life in the universe, this equation would be better applyed to our galaxy as it is intended or failing that to our quadrant of the galaxy, the actuall number of civilization in our galaxy is probably someare between the last two possibilitys. say 50.000 to 250.000 , as for the universe that kind of math and computing is way beyond our capabilitys.
SpoolDonkey (September 7, 2008 at 11:00 pm)
i think, looking at that old technology to the back on carl. and looking at what we have today, my absolute blind guess at the amount of inteligent civilizations is probably a happy medium. say 50.000 to 250.000
simoncuming41 (September 7, 2008 at 12:07 pm)
Well the Drake equation might only work within our detectable universe but how does Sagan account for his theory behind black holes being 'gates' to other universes. If this is the case the number of universes could be infinite and hence N would be incalculable!!!!
fotokuts (September 6, 2008 at 6:37 pm)
Carl...we miss you.
ronimacarroni (August 31, 2008 at 5:20 pm)
Well its more than that. Heck its not like you're looking at the fourth dimension when you look at a watch. But you can look at everything on a sheet a paper, that's because everything on the sheet of paper is represented two dimensionally. It would be the same if we could look at the third dimension from the fourth one.
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