Journal of Modern Physics

Volume 7, Issue 11 (July 2016)

ISSN Print: 2153-1196   ISSN Online: 2153-120X

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A Bridge Connecting Classical Physics and Modern Physics

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DOI: 10.4236/jmp.2016.711125    1,863 Downloads   2,605 Views   Citations


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.

Cite this paper

Chen, T. and Chen, Z. (2016) A Bridge Connecting Classical Physics and Modern Physics. Journal of Modern Physics, 7, 1378-1387. doi: 10.4236/jmp.2016.711125.

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