http://www.astronomycast.com/astronomy/episode-23-the-drake-equation/ Take a weekly facts-based journey through the cosmos with Astronomy Cast. Tue, 16 Mar 2010 14:18:43 +0000 http://wordpress.org/?v=2.9.1 hourly 1 http://www.astronomycast.com/astronomy/episode-23-the-drake-equation/comment-page-1/#comment-945 AstroGuyz.com » Beyond UFO’s by Jeffrey Bennett. Thu, 02 Oct 2008 00:13:43 +0000 http://www.astronomycast.com/solar-system/episode-23-the-drake-equation/#comment-945 [...] system would cause a huge paradigm shift in the Drake Equation. I know that in recent episode of Astronomy Cast  Dr. Pamela Gay expressed concern that we may not be able to absorb contact with a vastly advanced [...] [...] system would cause a huge paradigm shift in the Drake Equation. I know that in recent episode of Astronomy Cast  Dr. Pamela Gay expressed concern that we may not be able to absorb contact with a vastly advanced [...]

]]> http://www.astronomycast.com/astronomy/episode-23-the-drake-equation/comment-page-1/#comment-132 Star Stryder » Blog Archive » Probabilities of Catching Alien Radio- by Pamela L. Gay Tue, 10 Jul 2007 06:03:08 +0000 http://www.astronomycast.com/solar-system/episode-23-the-drake-equation/#comment-132 [...] In a new paper by Marko Horvat of the University of Zagreb, calculated the probability of detecting radio signals from an alien civilization is carefully laid out way. In this cleanly written, and numerically thorough work, he starts from the Drake Equation and goes on to say that the number of civilizations out there waiting to be found is the total number of civilizations given by the Drake Equation minus 1. So, once we know what we’re looking for, which was defined long ago, we now need to ask, who might we hear? This is going to be a function of how long each civilization lasts and what fraction of that time they are leaking radio signals. For instance, in the situation that a civilization lived 1,000,000 years and developed and continued using (before moving on to other more advanced technologies) radio communications for 4000 years, we’d have a 0.4% probability of being around when that 1 civilization was giving off radio signals. [...] [...] In a new paper by Marko Horvat of the University of Zagreb, calculated the probability of detecting radio signals from an alien civilization is carefully laid out way. In this cleanly written, and numerically thorough work, he starts from the Drake Equation and goes on to say that the number of civilizations out there waiting to be found is the total number of civilizations given by the Drake Equation minus 1. So, once we know what we're looking for, which was defined long ago, we now need to ask, who might we hear? This is going to be a function of how long each civilization lasts and what fraction of that time they are leaking radio signals. For instance, in the situation that a civilization lived 1,000,000 years and developed and continued using (before moving on to other more advanced technologies) radio communications for 4000 years, we'd have a 0.4% probability of being around when that 1 civilization was giving off radio signals. [...]

]]> http://www.astronomycast.com/astronomy/episode-23-the-drake-equation/comment-page-1/#comment-10 Astronomy Cast Mon, 19 Feb 2007 16:59:12 +0000 http://www.astronomycast.com/solar-system/episode-23-the-drake-equation/#comment-10 [...] Start by listening to last week’s show, Episode 23: The Drake Equation and don’t forget to check out the show notes for even more great links! [...] [...] Start by listening to last week's show, Episode 23: The Drake Equation and don't forget to check out the show notes for even more great links! [...]

]]>