Keeping them from kicking our asses for talking about it like they aren't going to kick our asses for talking about it is the hard part.
Lance wrote:So, I came up with numbers that indicate the galaxy should be teaming with life. I wonder why we can't see them.
Ikyoto wrote:Cause we using one narrow band of the EM to listen?
teri tait wrote:Well that's just typical, an antichrist named "John Doe". The only thing worse would be "Joe Sixpack"
BINGO!azazul wrote:I personally want them to continue enhancing the methods used and broaden the spectrum until we would detect civilizations like ourselves. Ones, that are not actively sending signals but whose technologies would emit signals into space. If we develop technology that can pick up signals from those who are not actively sending a signal, that is when we could talk more seriously about whether or not we are alone.
Keeping them from kicking our asses for talking about it like they aren't going to kick our asses for talking about it is the hard part.
azazul wrote:Now, one figure I found for the radius of the Milky Way is 6,000ly. So, the area of the Milky Way is about 113,097,240ly^2. 7,000 civilizations within 113,000,000ly^2 leaves lots of space between the civilizations.
Keeping them from kicking our asses for talking about it like they aren't going to kick our asses for talking about it is the hard part.
teri tait wrote:Well that's just typical, an antichrist named "John Doe". The only thing worse would be "Joe Sixpack"
Doe, John wrote:Cool idea but, you'd have to have a reception device the size of a galaxy to capture enough photons to generate a usable image.
Khrushchev's Other Shoe wrote:Doe, John wrote:Cool idea but, you'd have to have a reception device the size of a galaxy to capture enough photons to generate a usable image.
Well, we'd better get started then.
teri tait wrote:Well that's just typical, an antichrist named "John Doe". The only thing worse would be "Joe Sixpack"
R * FP * NE * FL * FI * FC * LN = N = number of advanced technical civilizations emitting detectable radio signals.
R = mean rate of star formation averaged over the lifetime of the galaxy.
FP = fraction of stars with planetary systems.
NE = mean number of planets per system with environments suitable for the origin of life.
FL = fraction of such planets on which life does develop.
FI = fraction of such planets on which intelligent life rises during the lifetime of the local sun.
FC = fraction of planets on which advanced technical civilizations rises.
L = lifetime of this technical civilization.
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