DoubtingThomas wrote:Right now the Parkes telescope is scanning millions of stars in the milky way galaxy looking for radio signals.
DoubtingThomas wrote:Why should we expect alien civilizations to use radio technology?
Right, to see if some alien civilizations out-there are intentionally sending us a radio signal, but it doesn't mean that all advanced civilizations use radio technology for communication. Radio may be a primitive form of communication. So no contradiction, but thanks for reading.
DoubtingThomas wrote:Right, to see if there are some civilizations out-there using radio technology, but it doesn't all advanced civilizations are using it. Radio may be a primitive form of communication.
Radio signals are simply one band of the very wide spectrum of electromagnetic waves, ranging from extremely short wavelength gamma radiation, through radiation detectable by our sense of vision, all the way up to very long wave radio signals. They're all basically the same phenomenon, even though different wavelengths need different apparatus to produce and detect them.
Electromagnetic waves are the fastest way for information to travel in the cosmos as we know it, and they seem to be a fundamental part of the structure of that cosmos. You can fantasise about other as yet unknown methods of communication- but that is really just pure fantasy at present.
Zadok: I did not have a faith crisis. I discovered that the Church was having a truth crisis. Maksutov: That's the problem with this supernatural stuff, it doesn't really solve anything. It's a placeholder for ignorance.
DoubtingThomas wrote:Right, to see if some alien civilizations out-there are intentionally sending us a radio signal, but it doesn't mean that all advanced civilizations use radio technology for communication. Radio may be a primitive form of communication. So no contradiction, but thanks for reading what I am saying.
The belief that there wouldn't be radio waves (it doesn't need to be for communication -- a whole slew of "man" made things give off radio waves) requires the belief that an advanced alien civilization would simply abandon an entire spectrum of wavelength, and would insulate all heat-generating technology from emitting that particular spectrum of EMF.
"Some people never go crazy. What truly horrible lives they must lead." ~Charles Bukowski
Chap wrote: Radio signals are simply one band of the very wide spectrum of electromagnetic waves, ranging from extremely short wavelength gamma radiation, through radiation detectable by our sense of vision, all the way up to very long wave radio signals. They're all basically the same phenomenon, even though different wavelengths need different apparatus to produce and detect them. Electromagnetic waves are the fastest way for information to travel in the cosmos as we know it, and they seem to be a fundamental part of the structure of that cosmos. You can fantasise about other as yet unknown methods of communication- but that is really just pure fantasy at present.
Doctor Steuss wrote:The belief that there wouldn't be radio waves (it doesn't need to be for communication -- a whole slew of "man" made things give off radio waves) requires the belief that an advanced alien civilization would simply abandon an entire spectrum of wavelength, and would insulate all heat-generating technology from emitting that particular spectrum of EMF.
"There are still some exotic channels in physics that have yet to be properly explored. One is neutrinos. These are strange, ghostly subatomic particles that travel vast distances and pass through solid matter. Detecting them is difficult but possible. Neutrinos are generated in nuclear reactions. The Sun spews them out in copious quantities. They stream in from other natural sources in deep space. We can also make neutrinos on Earth. Could extraterrestrials communicate with us through neutrino beams?" http://meti.org/blog/does-et-talk-zeta-rays
"We have outlined a method for intragalactic communication via directed 6.3 PeV beams of electron–anti-neutrinos, and other neutrinos. Such beams can be created with reasonable energy efficiency by a civilization without a long stretch from the technology we now possess." https://www.sciencedirect.com/science/a ... 9308014238
Doctor Steuss wrote:The belief that there wouldn't be radio waves (it doesn't need to be for communication -- a whole slew of "man" made things give off radio waves) requires the belief that an advanced alien civilization would simply abandon an entire spectrum of wavelength, and would insulate all heat-generating technology from emitting that particular spectrum of EMF.
"There are still some exotic channels in physics that have yet to be properly explored. One is neutrinos. These are strange, ghostly subatomic particles that travel vast distances and pass through solid matter. Detecting them is difficult but possible. Neutrinos are generated in nuclear reactions. The Sun spews them out in copious quantities. They stream in from other natural sources in deep space. We can also make neutrinos on Earth. Could extraterrestrials communicate with us through neutrino beams?" http://meti.org/blog/does-et-talk-zeta-rays
"We have outlined a method for intragalactic communication via directed 6.3 PeV beams of electron–anti-neutrinos, and other neutrinos. Such beams can be created with reasonable energy efficiency by a civilization without a long stretch from the technology we now possess." https://www.sciencedirect.com/science/a ... 9308014238
I'm not sure what that has to do with the needed abandonment of an entire spectrum, and insulating specifically that range of EMF in all technology to maintain your earlier statement regarding right-wing.
"Some people never go crazy. What truly horrible lives they must lead." ~Charles Bukowski
Doctor Steuss wrote: I'm not sure what that has to do with the needed abandonment of an entire spectrum, and insulating specifically that range of EMF in all technology to maintain your earlier statement regarding right-wing.
DoubtingThomas wrote:and I am not sure why the abandonment is necessary.
vvv
DoubtingThomas wrote:Why should we expect alien civilizations to use radio technology?
DoubtingThomas wrote:Right, to see if some alien civilizations out-there are intentionally sending us a radio signal, but it doesn't mean that all advanced civilizations use radio technology for communication. Radio may be a primitive form of communication. So no contradiction, but thanks for reading.
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DoubtingThomas wrote:Can our radio telescopes detect neutrino signals?
Our modern radio telescopes can't detect neutrino signals from space.
Doctor Steuss wrote:
DoubtingThomas wrote:Right, to see if some alien civilizations out-there are intentionally sending us a radio signal, but it doesn't mean that all advanced civilizations use radio technology for communication. Radio may be a primitive form of communication. So no contradiction, but thanks for reading.
Neutrinos and radio (electromagnetic) waves are not the same thing. Or are they?
Last edited by Guest on Wed Nov 07, 2018 8:59 pm, edited 3 times in total.
