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Is Gravity Quantum?
https://www.scientificamerican.com/article/is-gravity-quantu...
Earlier quoted context omitted.
What would be the advantage of using gravity waves?
Maybe the complexity required in detecting them acts as a form of security by obscurity. It's far more likely that radio waves would be intercepted.
I wonder if gravity wave detection could be ever be precise enough for communication. I wonder this because it occurs to me that one possible answer to Fermi's paradox is that aliens don't use Radio or other EM to chat. And maybe they don't leak it because they move energy and information around more efficiently than we do.
What would be the advantage of using gravity waves?
...But man-made gravitational waves are, without some scientific advance eclipsing the discovery of electricity, completely beyond any human capability of being produced at the levels required for extra terrestrial communication.
Earlier quoted context omitted.
Or even better - make it space based: https://en.wikipedia.org/wiki/Laser_Interferometer_Space_Ant...
Unfortunate to see NASA was forced to withdrawal (for budgetary concerns).
I wonder if gravity wave detection could be ever be precise enough for communication. I wonder this because it occurs to me that one possible answer to Fermi's paradox is that aliens don't use Radio or other EM to chat. And maybe they don't leak it because they move energy and information around more efficiently than we do.
If you want to communicate with an alien civilization you'd have to emit some kind of signal for a long period of time in order to ensure that they will receive it. Gravitational waves last for an instant and then you've missed them. Even if you've established communication with another civilization, using gravitational waves to carry on chatting seems like an awful waste of resources. The only scenario that seems pl…
Could you go into more detail? How do they differ from EM waves?
This seems like a thing to build on the moon.
[1] https://journals.aps.org/prd/abstract/10.1103/PhysRevD.90.10...
Earlier quoted context omitted.
What would be the advantage of using gravity waves?
One reason would be that gravitational wave amplitude decays only as 1/distance instead of electromagnetic radiation which decays as 1/(distance squared). ...But man-made gravitational waves are, without some scientific advance eclipsing the discovery of electricity, completely beyond any human capability of being produced at the levels required for extra terrestrial communication.
Earlier quoted context omitted.
If you want to communicate with an alien civilization you'd have to emit some kind of signal for a long period of time in order to ensure that they will receive it. Gravitational waves last for an instant and then you've missed them. Even if you've established communication with another civilization, using gravitational waves to carry on chatting seems like an awful waste of resources. The only scenario that seems pl…
> Gravitational waves last for an instant and then you've missed them. Could you go into more detail? How do they differ from EM waves?
Though - at that point, why not just send EM waves? They travel the same speed. Maybe gravitational waves could penetrate anything, if you're willing to spend planetary amounts of energy to do it?
Earlier quoted context omitted.
If you want to communicate with an alien civilization you'd have to emit some kind of signal for a long period of time in order to ensure that they will receive it. Gravitational waves last for an instant and then you've missed them. Even if you've established communication with another civilization, using gravitational waves to carry on chatting seems like an awful waste of resources. The only scenario that seems pl…
> Gravitational waves last for an instant and then you've missed them. Could you go into more detail? How do they differ from EM waves?
Earlier quoted context omitted.
What would be the advantage of using gravity waves?
One reason would be that gravitational wave amplitude decays only as 1/distance instead of electromagnetic radiation which decays as 1/(distance squared). ...But man-made gravitational waves are, without some scientific advance eclipsing the discovery of electricity, completely beyond any human capability of being produced at the levels required for extra terrestrial communication.