Einstein?s 1918-1920 Ideas on the Role of Ether in Relativity, and the Morton Ether Model
Thomas P. Morton
In 1918 and 1920 Einstein declared that ether could certainly play a role in General Relativity Theory (GRT) and would not need to be excluded from Special Relativity Theory (SRT). He thus left the door open for the insertion of ether concepts in both the gravitational case of dense matter and strong gravitational fields and the case of comparatively field-free regions of interstellar and intergalactic space. Einstein maintained that the ether is non-rotational and has no ordinary fixed points and has no ordinary state of motion. This presentation describes the essence of the ether and explains why the ether as described is a logical necessity.
