QuantumT 27 Posted November 14, 2020 I just had an idea. What if gravity is two forces instead of one? The primary force: An incompatibility between spacetime and matter. Spacetime repelling matter. The secondary force: Matter attracting matter. Being the same it wants to unite. (Surrounded by repelling spacetime.) It's a bit like water and oil. Stupid? 0 Share this post Link to post Share on other sites
SergUpstart 1 Posted November 14, 2020 34 minutes ago, QuantumT said: I just had an idea. What if gravity is two forces instead of one? The primary force: An incompatibility between spacetime and matter. Spacetime repelling matter. The secondary force: Matter attracting matter. Being the same it wants to unite. (Surrounded by repelling spacetime.) It's a bit like water and oil. Stupid? A little bit wrong. Space-time repels both matter and itself. Matter attracts both matter and space-time, or holds space-time around it. In other words, the mass of matter is positive, and space-time mass is negative. -2 Share this post Link to post Share on other sites
QuantumT 27 Posted November 15, 2020 14 minutes ago, SergUpstart said: A little bit wrong. Space-time repels both matter and itself. Matter attracts both matter and space-time, or holds space-time around it. In other words, the mass of matter is positive, and space-time mass is negative. That sounds even more stupid than my idea. Sorry pal. Please let the pro's give their opinion. 2 Share this post Link to post Share on other sites
MigL 1473 Posted November 15, 2020 (edited) Sounds almost like GR ... Einstein incorporated two mechanisms into his theory; at the time, he thought mistakenly. One part is a geometric field, which manifests as space-time curvature, and is responsible for test masses following curved geodesics such that masses seem to 'attract' each other. This is a simplification that ignores many other effects. The other part, he 'tacked on' as the Cosmological Constant, and it may be responsible for increasing separation between galaxies/clusters and universal expansion. As we are not quite sure, it is commonly known as Dark Energy. Edited November 15, 2020 by MigL 0 Share this post Link to post Share on other sites
Markus Hanke 471 Posted November 15, 2020 9 hours ago, QuantumT said: What if gravity is two forces instead of one? It is not possible to capture all the necessary degrees of freedom for gravity using vectors fields - irrespective of whether there is just one vector field (=Newtonian gravity), or several. For fundamental reasons, you need at least a rank-2 tensor field - not least because the source term is itself a rank-2 tensor field. To put it simply - gravity is not a force. 0 Share this post Link to post Share on other sites
