What does it tell you that a Lorentz frame is?

 

 

OK, I have:(from "the international dictionary of physics and electronics, second edition 1961, D. Van Nostrand Co.)

 

Rest Frame: Lorentz frame in which the total momentum of a system vanishes.

 

AND

 

Lorentz Frame: Any of the set ofcoordinate systems in Minkowski space for which the square of the interval between two events is c^2dt^2-(dx)^2.

 

Any such coordinate system may be obtained from another by means of Lorentz transformation (together perhaps, with an orthagonal transformation of the space axes). With each Lorentz may be associated a point observer, each of whom moves with constant velocity relative to the others.

OK' date=' I have:(from "the international dictionary of physics and electronics, second edition 1961, D. Van Nostrand Co.)

 

Rest Frame: Lorentz frame in which the total momentum of a system vanishes.

 

[b']AND[/b]

 

Lorentz Frame: Any of the set of coordinate systems in Minkowski space for which the square of the interval between two events is c^2dt^2-(dx)^2.

 

 

See, now I have to decipher this. The goal was to understand a particular definition of rest frame. I confess I can't make sense out of it, can you?