The Neo-Classical Model of the flat earth emerged in the 20th century, combining work from Samuel Birley Rowbotham with work from Albert Einstein. Specifically their works "Earth Not a Globe" and "On the Electrodynamics of Moving Bodies"
The Neo-Classical Model relies on five postulates:
- The earth is finite disk.
- The earth is being accelerated upwards at approximately 9.80665 m/s2.
- The earth is the only known "disk" in the universe.
- The laws of physics are the same in every inertial reference frame.
- The speed of light, measured in any inertial reference frame, always has the same value, c.
Under Einstein's Special Relativity it is impossible to accelerate an object past the speed of light, showing that continuous acceleration of the earth is possible with conventional models. For more information see Special Relativity