Is Anyone Out There?

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John D Anthony

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Message 1727001 - Posted: 18 Sep 2015, 23:09:20 UTC - in response to Message 1726768.  

Thanx for the article Lynn.

I also literally wrote in my lettre to Dr. Hawking that I believe intelligent alien life is finding us too 'dumb' to have any interest in contacting us.

My own belief is that we will be amazed at the differences and shocked by the similarities. Whatever they may be now, they were us at this point in their history.
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Message 1727605 - Posted: 21 Sep 2015, 18:16:54 UTC - in response to Message 1727001.  

Survey Says:


Are We Alone? Survey Finds No Sign of Advanced Alien Civilizations


Nearby galaxies in our universe show no signs of advanced alien civilizations — at least for now.

A new study that examined the most promising galaxies we can see out of a collection of 100,000 found no signs of the waste energy that such alien civilizations might generate, showing that they're extremely rare, if not nonexistent. The galaxies were chosen because they emit a large amount of heat, but rather than being the byproduct of alien factories the emissions seem to come from less exotic, natural causes such as buildups of dust.

http://www.nbcnews.com/science/space/are-we-alone-survey-finds-no-sign-advanced-alien-civilizations-n431081
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Message 1727614 - Posted: 21 Sep 2015, 18:49:46 UTC - in response to Message 1726724.  

What is her doctorate in ?

The Andromeda galaxy is 250 million light years away. Hard to find an Earth-like planet at that distance--and to what avail ?

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Ph-D in Planetary Geology/Earth Sciences
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Message 1727619 - Posted: 21 Sep 2015, 19:45:01 UTC - in response to Message 1727605.  

Survey Says:


Are We Alone? Survey Finds No Sign of Advanced Alien Civilizations


Nearby galaxies in our universe show no signs of advanced alien civilizations — at least for now.

A new study that examined the most promising galaxies we can see out of a collection of 100,000 found no signs of the waste energy that such alien civilizations might generate, showing that they're extremely rare, if not nonexistent. The galaxies were chosen because they emit a large amount of heat, but rather than being the byproduct of alien factories the emissions seem to come from less exotic, natural causes such as buildups of dust.

http://www.nbcnews.com/science/space/are-we-alone-survey-finds-no-sign-advanced-alien-civilizations-n431081


as Eric Korpela wrote in news (Message 1727583)
I'm not sure we have any reason to believe that Kardishev Type II or Type III civilizations are likely to exist to begin with.


I tend to agree. Imagine if 200 years ago a group of scientists tried to figure out how communication would like in the early 21st century. The chances of them being even remotely close would be around zero. With the tech they had back then using mirrors & light may have been one of solutions for long distance communication. Thus target Mars with our best telescopes and look for flashes of light to see if Mars is inhabited. You get the idea.

More than likely Civs that advanced would be able to figure out how to reduce waste energies and be much more efficient. All this survey tells us is that no galaxies fit the Kardishev Type III scenario. I think they were looking for something that was not there but not because they are no alien civs.

We need to keep looking and refining what and how to look. We won't know what is the right way to look until we do it wrong.

Bob
Sometimes I wonder, what happened to all the people I gave directions to?
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Message 1727797 - Posted: 22 Sep 2015, 6:28:30 UTC - in response to Message 1727605.  

Survey Says:


Are We Alone? Survey Finds No Sign of Advanced Alien Civilizations


Nearby galaxies in our universe show no signs of advanced alien civilizations — at least for now.

A new study that examined the most promising galaxies we can see out of a collection of 100,000 found no signs of the waste energy that such alien civilizations might generate, showing that they're extremely rare, if not nonexistent. The galaxies were chosen because they emit a large amount of heat, but rather than being the byproduct of alien factories the emissions seem to come from less exotic, natural causes such as buildups of dust.

http://www.nbcnews.com/science/space/are-we-alone-survey-finds-no-sign-advanced-alien-civilizations-n431081

that is NOT the original article...

& they did find some "anomalitys"...but can't explain them, though!


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Message 1727858 - Posted: 22 Sep 2015, 13:21:16 UTC - in response to Message 1727797.  
Last modified: 22 Sep 2015, 13:24:09 UTC

Not so sure of what this "waste heat" detection method is and how it would work on a galaxies of 100,000,000,000 stars that are 2 or 3 hundred million miles away.

There seems to be some comments that suggest that they are looking for a civilization that can control the energy of an entire galaxy. "Waste heat" in my opinion could be the re-radiation from a planet that is heated by it's star. I am sure that there are those like this in every galaxy.

Much clarification needed here.
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John D Anthony

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Message 1728077 - Posted: 23 Sep 2015, 7:40:05 UTC - in response to Message 1727858.  

Not so sure of what this "waste heat" detection method is and how it would work on a galaxies of 100,000,000,000 stars that are 2 or 3 hundred million miles away.

There seems to be some comments that suggest that they are looking for a civilization that can control the energy of an entire galaxy. "Waste heat" in my opinion could be the re-radiation from a planet that is heated by it's star. I am sure that there are those like this in every galaxy.

Much clarification needed here.

I can't imagine how any positive result from that kind of study would amount to anything more than endless debate. Seems kind of pointless to look for things that are impossible to verify.
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Message 1728080 - Posted: 23 Sep 2015, 8:01:06 UTC - in response to Message 1727858.  

Not so sure of what this "waste heat" detection method is and how it would work on a galaxies of 100,000,000,000 stars that are 2 or 3 hundred million miles away.

There seems to be some comments that suggest that they are looking for a civilization that can control the energy of an entire galaxy. "Waste heat" in my opinion could be the re-radiation from a planet that is heated by it's star. I am sure that there are those like this in every galaxy.

Much clarification needed here.

They (scientists) know how much a system dissipates energy if there is NO K1 or K2 or even K3 civilization there...if there is a advanced civ, then a more energy it would need...the more energy consumed, more energy is wasted! ;)


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Message 1728097 - Posted: 23 Sep 2015, 11:27:07 UTC

I agree with Mr. Anthony. Searching in another galaxy for that kind of marker could never be verified with direct observation and surely even the most optimistic futurist doesn't think intergalactic travel will ever be a possibility for us humans.
Bob DeWoody

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Message 1728143 - Posted: 23 Sep 2015, 13:52:37 UTC - in response to Message 1728080.  

Here on Earth the term "Waste Heat" is applied for instance to the energy that emits from power plant smoke stacks--usually about 300 degrees F--just above adiabatic saturation. It is heat that cannot be of much use in a Carnot cycle which depends upon wide temperature differentials to produce mechanical motion and power.
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Message 1728149 - Posted: 23 Sep 2015, 14:10:58 UTC - in response to Message 1728097.  

intergalactic travel will ever be a possibility for us humans.


Bob, your post calls to mind some interesting truths. It's not travel to concerning distant galaxies--it's just in knowing. What we might find out is how things were hundreds of millions of years in the past.
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Message 1728507 - Posted: 24 Sep 2015, 13:06:01 UTC - in response to Message 1728143.  

Here on Earth the term "Waste Heat" is applied for instance to the energy that emits from power plant smoke stacks--usually about 300 degrees F--just above adiabatic saturation. It is heat that cannot be of much use in a Carnot cycle which depends upon wide temperature differentials to produce mechanical motion and power.

so? that means there is Life on Earth! exactly what this science is trying to find out? right?!
;)

but this is on a Galaxy scale...as we (as a humans) don't make much "wasted heat" in our Solar system...image what kind of civilization it would take to register hat way on Galaxy scale...
B)


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Message 1728508 - Posted: 24 Sep 2015, 13:17:32 UTC - in response to Message 1728507.  

Here on Earth the term "Waste Heat" is applied for instance to the energy that emits from power plant smoke stacks--usually about 300 degrees F--just above adiabatic saturation. It is heat that cannot be of much use in a Carnot cycle which depends upon wide temperature differentials to produce mechanical motion and power.

so? that means there is Life on Earth! exactly what this science is trying to find out? right?!
;)

but this is on a Galaxy scale...as we (as a humans) don't make much "wasted heat" in our Solar system...image what kind of civilization it would take to register hat way on Galaxy scale...
B)

Somebody we don't want to mess with or even let them know we are here.
Bob DeWoody

My motto: Never do today what you can put off until tomorrow as it may not be required. This no longer applies in light of current events.
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