A Euclidean geometric model that has a maximum speed c

Abstract

Introduce a standard Euclidean geometric model with a maximum speed c, which may help us understand why the speed of light c is the universe's maximum speed, why parameter c is a constant, and the geometric mechanism that causes time dilation and length contraction. Finally, based on this model, this paper will present a new coordinate transformation and general velocity addition formula. The new general velocity addition formula is not only consistent with the Michelson‐Morley experiment but also consistent with the one-way speed of light experiment and the linear Sagnac experiment.