**Author:**

Makanae, Masahiko

**Category:**

Research Papers

**Sub-Category:**

Relativity Theory

**Date Published:**

June 15, 2015

**Keywords:**

Einstein, relativity, equations, c-v

**Abstract:**

In his paper “On the Electrodynamics of Moving Bodies”[1], Albert Einstein used the term “c – v” in order to construct the fundamental basis of the Special Theory of Relativity. This is an important term, as he used c – v or (c – v) 2 several times in the process of developing the Lorentz factor. Appearing first in §2 of his paper [1], c – v corresponds to the “velocity” contained in Einstein’s expression “velocity = light path ÷ time interval ”. However, a close examination of c – v together with his conclusion in §2 of the paper [1], we will find that c – v is not usable for dividing the “light path” in his expression.

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