Well, you're late by a paradigm change !
The conceptual revolution has already started...
That's wrong, according (among others) to Jean-Pierre Petit's "Janus" cosmological model :
The Janus cosmological model: negative mass in cosmology and astrophysics with no paradox, challenging the ΛCDM model.
januscosmologicalmodel.com
As explained in these threads (which should be merged, IMHO) :
Hello. For those of you interested in cosmology and astrophysics, please check this "outsider" theory which looks like a generalization (?) of Einstein's relativity : The Janus cosmological model: a paradigm shift. Its author is Dr. Jean-Pierre Petit (retired French physicist), for more...
cassiopaea.org
I would like to ask to the CS and to Ark what they think about the theory of Jean Pierre Petit (JPP) French Astrophysicist. Yes I know that a few years ago the question was asked and CS answered that he was in error. Since then, he has changed his theory, which no longer speaks of twin...
cassiopaea.org
Jean-Pierre Petit is a french physicist, pioneer in the study of magneto-hydro-dynamic (MHD), used on hypersonic russian missiles. He continues to search in mathematic/cosmology. He built a model of the universe "Janus" which considers two types of parallel timeline. One time positive and one...
cassiopaea.org
So in his bimetric model (which explains a dozen of observations, including the Great Repeller, contrary to the consensual Lambda-CDM model) :
- there exists both
positive AND negatives masses ;
- in each of these two "realms", which have
opposite time arrows, there exists both
matter and antimatter (but, IIRC, here in the positive "realm", there is mainly matter -- that's an astronomical observation --, but in the negative "realm" there is mainly antimatter -- consequence of JPP's 2 new coupled field equations) ;
-
masses of the same sign attracts mutually (+m1 attracts +m2, and -m3 attracts -m4)
-
but masses of opposite sign repels mutually (+m1 repels -m3).
NB: this avoids the "runaway effect".
So, from this PoV,
gravity is similar to magnetism, with a significant difference : the law of attraction / repulsion is inversed.
In this conceptual frame, your remark has no (more) meaning...
Well, magnets are
dipoles (objects with two opposite poles), usually described as "north" and "south", but "positive" and "negative" would fit also.
And there is
only one magnetism, but two apparent effects : same "sign" poles repel mutually ; opposite "sign" poles attract mutually.
For gravitation,
masses are either (+) or (-) ; if you prefer,
in the (3Dens ?) "duoverse" including the positive-mass universe, there exists only "mass monopoles".
NB : to my understanding, there is no known "mixed" objects with both, which would be "mass dipoles" ; but that would be an interesting speculation...
And
there is only one gravitation, but two apparent effects : same sign masses attract mutually ; opposite sign masses repel mutually.
Thanks for starting it !
(To be continued...)