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John D Anthony Send message Joined: 4 Sep 15 Posts: 177 Credit: 1,303,001 RAC: 1 |
Thanx for the article Lynn. 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. |
Lynn Send message Joined: 20 Nov 00 Posts: 14162 Credit: 79,603,650 RAC: 123 |
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 |
betreger Send message Joined: 29 Jun 99 Posts: 11362 Credit: 29,581,041 RAC: 66 |
What is her doctorate in ? Degree/Major: Ph-D in Planetary Geology/Earth Sciences |
Cactus Bob Send message Joined: 19 May 99 Posts: 209 Credit: 10,924,287 RAC: 29 |
Survey Says: 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? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ SETI@home classic workunits 4,321 SETI@home classic CPU time 22,169 hours |
KLiK Send message Joined: 31 Mar 14 Posts: 1304 Credit: 22,994,597 RAC: 60 |
Survey Says: that is NOT the original article... & they did find some "anomalitys"...but can't explain them, though! non-profit org. Play4Life in Zagreb, Croatia, EU |
William Rothamel Send message Joined: 25 Oct 06 Posts: 3756 Credit: 1,999,735 RAC: 4 |
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. |
John D Anthony Send message Joined: 4 Sep 15 Posts: 177 Credit: 1,303,001 RAC: 1 |
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. 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. |
KLiK Send message Joined: 31 Mar 14 Posts: 1304 Credit: 22,994,597 RAC: 60 |
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. 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! ;) non-profit org. Play4Life in Zagreb, Croatia, EU |
Bob DeWoody Send message Joined: 9 May 10 Posts: 3387 Credit: 4,182,900 RAC: 10 |
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 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. |
William Rothamel Send message Joined: 25 Oct 06 Posts: 3756 Credit: 1,999,735 RAC: 4 |
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. |
William Rothamel Send message Joined: 25 Oct 06 Posts: 3756 Credit: 1,999,735 RAC: 4 |
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. |
KLiK Send message Joined: 31 Mar 14 Posts: 1304 Credit: 22,994,597 RAC: 60 |
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) non-profit org. Play4Life in Zagreb, Croatia, EU |
Bob DeWoody Send message Joined: 9 May 10 Posts: 3387 Credit: 4,182,900 RAC: 10 |
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. 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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