Ether is the first element of the Universe. Everything is made of ether. The mass of the ætheric quantum is 7.51x10^-51 [kg], the radius of the quantum is 5.47x10^-78 [m] and the time required for light to travel a distance equal to the radius of the quantum is 1.82x10^-86 [s]. The ætheric quantum is a black hole that defines the rules for everything in the Universe. The proton, electron or neutron are made up of ætheric quanta. The absorption of quanta by the proton, or any other black hole, is called mass flow and has a rate of 4.038x10^38 kg/s. This is a constant and is equal to 50c^4. Any black hole in the universe will absorb ether with this mass flow rate. That's why we have gravity!!! The gravitational constant is G=1/50c=c^2 Rm=c^3/I=c^4/F=c^5/P, where Rm is the mass resistance, c is the speed of light, I is the mass flow rate in kg/s, F is the force in newtons and P is power in watts. In the book æther-the first element, all these aspects are treated, from the mass and radius of the quantum to the energy source of the quantum cavity.