Author Topic: Artificial Gravity from Solenoids and Loops  (Read 2283 times)

Offline sanman

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Artificial Gravity from Solenoids and Loops
« on: 01/19/2016 01:15 am »
Thanks to Stormbringer for this one:

gravity stuff:  http://www.sciencedaily.com/releases/2016/01/160108083918.htm

http://www.ibtimes.co.uk/gravity-major-step-physics-mathematician-unveils-formula-creating-gravitational-fields-1537182

http://phys.org/news/2016-01-paper-method-gravitational-fields.html




So mathematician Andre Fuzfa from University of Namur in Belgium is claiming that we should in principle be able to generate at least a miniscule gravitational field from devices which generate very strong electromagnetic fields.

While this may seem to contradict the fundamental idea of the 4 separate forces (EM, strong, weak, gravity), he says he is citing established physics.

Perhaps the idea of "shear" may offer a useful analogy, whereby a field (eg. EM field) influencing particular constituents of the fabric of spacetime then causes them to marginally affect other constituents in spacetime, thus exerting a very tiny effect across the spectrum of spacetime(aka. "gravity's rainbow").

Fuzfa's idea seems somewhat similar to the approach of NASA's Dr Harold White in using a Michelson interferometer to measure potential "space warp" from a capacitor ring's electric field. But Fuzfa is proposing that experiments be done using very high power superconductive magnets like the kind used by CERN's LHC, and that the effects be measured using a very sensitive laser interferometer like LIGO.

So of course the proposed "artificial gravity" effect would be miniscule at best - therefore what practical benefits could it provide, beyond fundamental research?


Fuzfa says:
Quote
Until now, a scientific advance like this was a dream of science fiction, but it could open up many new applications tomorrow, for example in the field of telecommunications with gravitational waves: imagine calling the other side of the world without going through satellite or terrestrial relays!

So one possibility would be to use it like radio - if you can generate tiny field perturbations and modulate them, and then later detect them somewhere else, then you can use this to telecommunicate. You'd use your high-powered superconductive magnets to generate the tiny perturbations in the gravitational field on command, and then use a sensitive interferometer to pick them up elsewhere (perhaps atom interferometry would be cheaper and more effective than laser interferometry).

What's the advantage of inventing and using "gravity radio" as compared to regular radio? I dunno - wouldn't it potentially have less noise associated with it? Wouldn't the signal be less prone to being blocked or absorbed by large bodies? Fuzfa says you'd be able to send a signal from one side of the Earth to the other directly, without having to bounce it through satellite relays, as has to be done with radio/EM.

Suppose we're wrongly listening for intelligent alien life on EM bands, when actually everybody else in the universe is busily chattering away on the "gravity radio"? Could we be missing out?
« Last Edit: 01/19/2016 01:48 am by sanman »

Offline Stormbringer

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Re: Artificial Gravity from Solenoids and Loops
« Reply #1 on: 01/19/2016 04:32 am »
I know you guys are tired of hearing this. It get said often enough to be a cliche now- ( *cough* Chicago pile)

but atomic energy was miniscule at first. And now energy levels at the biggest colliders are now approaching feasibility in desktop machines. And Magnetic field strengths once available only to huge cryogenically cooled electromagnets are now available in theory from permanent magnets that do not require the most extreme forms of cryo-cooling.

what if we discover something like transformers, resistors, capacitors and so on for gravity? yeah; i know GR gravity isn't an energy field and QG isn't invented and indicates gravitons most likely may be impossible to catch if they do exist. but what if that is wrong or that we don't understand all the ramifications even if it (the GR understanding of gravity) is true?
When antigravity is outlawed only outlaws will have antigravity.

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