This paper of mine cites evidence of Gravity in works in the He-2-4 Geometric Model.

It has taken me 20 years of chase of Truth to understand these things and Gravity was one of the most complex topics. Equally complex was understanding the Strong Force. The work on He-2-4 took 2010 to 2017 of constant thinking of the problem after I hit this mysterious nucleus using simple arguments of symmetry of 3 Fields: Electric, Magnetic and Space (Ether) Fields.

He-2-4 is the most abundant, most stable, most symmetry and mother nucleus to the rest of nuclei, except H. It also explains why Noble gases are stable and why some nuclei are Radioactive.

We find the tell tale signs of Gravity through the gradient of mass-density observed in the He-2-4 Geometric Model that enabled us to calculate its mass accurately in 2 different ways using the Energy Partition Theorem and Equivalence of Energy Principle. The model satisfies Quark and QCD models and uses the same QCD quanta unit which Yukawa derived. It also satisfies the Nature's CCP Packing, Thomas Problem of distributing charges, and Vector Equilibrium.

https://www.researchgate.net/publication/331983437_The_Walk_of_Reality_Series-Tell-Tale_Signs_of_Gravity_in_The_He_2-4_Nucleus_Model_The_Walk_of_Reality_Series_Tell-Tale_Signs_of_Gravity_in_the_He_2-4_Nucleus_Model