8 ms·
Fascinating. Q for you since you are so clued in. I am a ham radio operator and was thinking about novel forms of signal propagation. I landed on the idea of
by themodelplumber 3y ago
Fascinating. Q for you since you are so clued in.
I am a ham radio operator and was thinking about novel forms of signal propagation.
I landed on the idea of gravitons. Could gravitonic signal propagation be done somehow? While researching, I keep coming across familiar terms I know from radio land.
Just curious if the fields here could be harnessed for communication. Thanks.
- HyperSane 3y agoGravity waves are way too hard to detect and generate to be used for communication. The waves we can just barely detect too 8 solar masses worth of energy to generate.
- multjoy 3y agoAnd people complained about next door's aerial farm!
- dumpsterdiver 3y ago[flagged]
- sph 3y ago> any stable solar system capable of sustaining life will emit a steady heartbeat, just like a living being What do you mean? What would be the source of the regular wave-like signal, and why only systems with life have one? Do you mean that actual hearts beating create gravitational waves?
- dumpsterdiver 3y ago> What do you mean? What would be the source of the regular wave-like signal The source of the signal would be a solar system that contains planets in a stable enough orbit to harbor life. > and why only systems with life have one? Solar systems that harbor life (our own, for example) are not the only stable solar systems. A stable solar system is however required to be the genesis grounds of life as we understand it, otherwise the building blocks of such potential life would be swallowed in the chaos and heat.
- sethammons 3y agoHow does stability lead to a wave? We can see wobble in stars to know they are getting tugged by planets. Are you expecting similar with gravity? I'm not a physicist nor astronomer. I wouldn't expect any gravity waves as I'd expect the star system to have a center of mass that stays in roughly the same space.
- dumpsterdiver 3y ago> How does stability lead to a wave? All gravitational events lead to a wave. A system emitting stable waves creates a "pattern".
- ilteris 3y agoIn the movie interstellar were they using gravitational communication to write the book? Can someone enlighten me?
- beders 3y ago> Here's what Chat-GPT4 has to say about the fidelity of "gravitational communication": Who was the original author?
- johndunne 3y agoRemember that that 8 solar mass gravity wave source is potentially 100’s millions of light years away. A sci-fi author could conjure up a ‘portable box’ containing a couple of orbiting micro-scopic black holes in a box to generate gravity wave signals someone somewhere in the solar system could pick up with a portable LIGO device. Consider this comment a patent on the idea :-)
- jchallis 3y agoThe big big downside of gravity waves is that they have no dipole radiators - with electric charge you have + and - and that allows very efficient propagation. For gravity there is only one charge ,and this allows only quadrupole radiation - making it extremely awful for transmission.
- yodon 3y agoYes, but there is no dispersion relation or absorption by the interstellar medium (not directly related to the quadrupole nature, but that which makes a radiation hard to detect also makes it hard to interfere with).
- _joel 3y agoThe detectors are such precision instruments it took over 10 years of calibration until they even had the first detection. Maybe some far off comms network could use them, but I doubt anytime soon. I wonder if you could use erasure codes with them too :)
- comboy 3y agoAccelerating star-like masses to 99% speed of light in a few seconds also seems somewhat less efficient than your typical FM transceiver.
- conradev 3y agoThe Three-Body Problem science fiction series involves gravitational waves. I’m not going to spoil it, but the series is a great read :) Not quite possible today, though, as others have pointed out
- JumpCrisscross 3y agoAren’t neutrinos holy grail for signals?