Omega Owners Forum
Chat Area => General Discussion Area => Topic started by: cam2502 on 05 June 2010, 14:22:43
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further to the universe thread,i pose the question........do you think there is other life forms out there?
me?......there HAS to be. discuss?.......
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I asked this question in school many many years ago and the reply I had was 'why should we be the only planet with life'. Good Answer, I thought. :y :y :y
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If we have life on earch, then why shouldnt there be life else where.
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If we have life on earch, then why shouldnt there be life else where.
DUPLICATED :D :D :D :D
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if you accept that the universe is infinite, then it would be impossible for us to be alone, even if the universe isn't infinite - the hundreds of billions of galaxies, each with millions of star systems and hence planets means you can be 100% certain of life on other planets (or as close to 100% as is statistically significant) :y
there is a famous equation - its great because you can just plug your own numbers in....whatever you think!
The Drake equation states that:
N=R x fp x ne x fl x fi x fc x L
where:
N = the number of civilizations in our galaxy with which communication might be possible;
and
R* = the average rate of star formation per year in our galaxy
fp = the fraction of those stars that have planets
ne = the average number of planets that can potentially support life per star that has planets
f[ch8467] = the fraction of the above that actually go on to develop life at some point
fi = the fraction of the above that actually go on to develop intelligent life
fc = the fraction of civilizations that develop a technology that releases detectable signs of their existence into space
L = the length of time such civilizations release detectable signals into space
using best guess figures for example gives you:
R* = 10/year (10 stars formed per year, on the average over the life of the galaxy)
fp = 0.5 (half of all stars formed will have planets)
ne = 2 (stars with planets will have 2 planets capable of developing life)
fl = 1 (100% of these planets will develop life)
fi = 0.01 (1% of which will be intelligent life)
fc = 0.01 (1% of which will be able to communicate)
L = 10,000 years (which will last 10,000 years).
so using these figures, multiplying them all together gives you N=10 (ie currently 10 civilisations in our galaxy that could communicate with us). :y
so 10 civilistaions in each galaxy times 100 billion galaxies gives you some idea of how not alone we are ;D
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wow....now thats what i call an answer!!!!! :y ;D
as i said, there HAS to be! ;D ;D ;D
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wow....now thats what i call an answer!!!!! :y ;D
as i said, there HAS to be! ;D ;D ;D
well i'm stuck at work on what looks like the hottest day of the year and doing nothing else :( :y
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anyway - its not my equation - its Mr Drake's :y
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Thing is -- most exponents of the theory that we are alone in the universe are stuck in the rut that a "lifeform" has to be like us, or at least carbon based. Therefore they say that other planets ( at least in infinitesimal (sp?) portion we know about) cannot sustain life (as we know it) .... however, there is no reason that there ISN'T life on these few planets we know of already --- just unrecognisable to us using our limited detection abilities and knowledgebase.
Does that make sense ????
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Thing is -- most exponents of the theory that we are alone in the universe are stuck in the rut that a "lifeform" has to be like us, or at least carbon based. Therefore they say that other planets ( at least in infinitesimal (sp?) portion we know about) cannot sustain life (as we know it) .... however, there is no reason that there ISN'T life on these few planets we know of already --- just unrecognisable to us using our limited detection abilities and knowledgebase.
Does that make sense ????
Yes it does HC...
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anyway - its not my equation - its Mr Drake's :y
Yeh, Charlie Drakes............for those who know who he is, some of you may be too young to remember him, classic comedy ;D
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if you accept that the universe is infinite, then it would be impossible for us to be alone, even if the universe isn't infinite - the hundreds of billions of galaxies, each with millions of star systems and hence planets means you can be 100% certain of life on other planets (or as close to 100% as is statistically significant) :y
there is a famous equation - its great because you can just plug your own numbers in....whatever you think!
The Drake equation states that:
N=R x fp x ne x fl x fi x fc x L
where:
N = the number of civilizations in our galaxy with which communication might be possible;
and
R* = the average rate of star formation per year in our galaxy
fp = the fraction of those stars that have planets
ne = the average number of planets that can potentially support life per star that has planets
f[ch8467] = the fraction of the above that actually go on to develop life at some point
fi = the fraction of the above that actually go on to develop intelligent life
fc = the fraction of civilizations that develop a technology that releases detectable signs of their existence into space
L = the length of time such civilizations release detectable signals into space
using best guess figures for example gives you:
R* = 10/year (10 stars formed per year, on the average over the life of the galaxy)
fp = 0.5 (half of all stars formed will have planets)
ne = 2 (stars with planets will have 2 planets capable of developing life)
fl = 1 (100% of these planets will develop life)
fi = 0.01 (1% of which will be intelligent life)
fc = 0.01 (1% of which will be able to communicate)
L = 10,000 years (which will last 10,000 years).
so using these figures, multiplying them all together gives you N=10 (ie currently 10 civilisations in our galaxy that could communicate with us). :y
so 10 civilistaions in each galaxy times 100 billion galaxies gives you some idea of how not alone we are ;D
and if they make children like us, universe will be crowded in future also and intergalactic accidents ;D
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God Forbid there may be other planets populated by life such as us Humans! It's bad enough here as it is ::);D ;)
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anyway - its not my equation - its Mr Drake's :y
Yeh, Charlie Drakes............for those who know who he is, some of you may be too young to remember him, classic comedy ;D
I'm old enough to remember him......sadly.... :-[ :-[ ;)
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anyway - its not my equation - its Mr Drake's :y
Yeh, Charlie Drakes............for those who know who he is, some of you may be too young to remember him, classic comedy ;D
I'm old enough to remember him......sadly.... :-[ :-[ ;)
Hello my darlins! :D :D :D :D ;)
Loved him! A unique talent of those innocent years :-* :-* :-* :-*
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Enjoy!:
[media]http://www.youtube.com/watch?v=uoBXAUNU1HE[/media]
:-* :-* :y :y
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Are we alone?...........why does anyone care? :-/
If we found life on another planet we would probably get all insecure and attack them. ::)
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wonders of the solar system. good old brian cox.
water is one requirement.
planet size.
the water element comes from some dessert so dry no micro organism can survive there. described as sterile land.
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Are we alone?...........why does anyone care? :-/
If we found life on another planet we would probably get all insecure and attack them. ::)
given the hundreds of millions of advanced civilisations out there -probably half of which have capabilities way beyond ours - its a good chance they'll swat us like flies :o
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wonders of the solar system. good old brian cox.
water is one requirement.
planet size.
the water element comes from some dessert so dry no micro organism can survive there. described as sterile land.
you've tasted the wife's cakes then ;D ;D ;D :y
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As long as they swat me quickly, I couldnt give a monkeys tbh. ;) ;D
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wonders of the solar system. good old brian cox.
water is one requirement.
planet size.
the water element comes from some dessert so dry no micro organism can survive there. described as sterile land.
you've tasted the wife's cakes then ;D ;D ;D :y
too many esses i gather ;D
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sorry tapper - couldnt resist (the joke, not the cakes :() ;D