We shall therefore assume the complete physical equivalence of a gravitational field and a corresponding acceleration of the reference system.


Statement of the equivalence principle in Yearbook of Radioactivity and Electronics (1907)

Albert Einstein Quotes

We shall therefore assume the complete physical equivalence of a gravitational field and a corresponding acceleration of the reference system.

We shall therefore assume the complete physical equivalence of a gravitational field and a corresponding acceleration of the reference system.

We shall therefore assume the complete physical equivalence of a gravitational field and a corresponding acceleration of the reference system.

We shall therefore assume the complete physical equivalence of a gravitational field and a corresponding acceleration of the reference system.