TITLE:
A Bridge Connecting Classical Physics and Modern Physics
AUTHORS:
Tower Chen, Zeon Chen
KEYWORDS:
4-d s-t Frames, 3-d s-t Frame, Proper Time, Proper Length, Time Dilation, Length Contraction
JOURNAL NAME:
Journal of Modern Physics,
Vol.7 No.11,
July
29,
2016
ABSTRACT: In classical physics, time and space are absolute and independent, so time and space can be treated separately. However, in modern physics, time and space are relative and dependent: time and space must be treated together. In 4-d s-t frames, we treat time and space independently, then add a constraint to link them together. In teaching, there is a big gap between classical and modern physics. We hope that we are able to find a frame connecting them to make learning simpler. 3-d s-t frame is the best candidate to serve this purpose: time and space are able to be treated dependently by defining the unit of time as T and the unit of space as λ in this frame. Furthermore, the ratio, λ/T, is the velocity, c, of the medium. This paper shows the equivalence between a 4-d s-t frame and a 3-d s-t frame by properly converting coordinates of two frames.