Dr. Albert Einstein: Theoretical Physics, Relativity and the Photoelectric Effect, 1935

Four-Dimensional Space

In 1904, mathematician Hermann Minowski succeeded in representing Einstein's theory of special relativity mathematically. He did so by introducing the concept of four dimensions: three of space and one of time. Using his mathematical representation, he was able to describe the positions and motions of objects such as speeding electrons as they moved through space. Minowski's four-dimensional space-time helped Einstein to develop his theory of general relativity, which he would come to regard as his greatest achievement.