- #1
myspacetime
- 6
- 0
2 textbooks I have give postulate 2 of SR as:
"The speed of light in vacuum is constant in all inertial reference frames".
But "Classical Dynamics" by Jerry B. Marion has:
"The velocity of light in free space is a universal constant independent of any relative motion of the source and observer".
I think there is no need of inertial frame, i.e c would be the same for any observer and source, even if is in an accelerating spaceship doing the measuring. If it is so, then I think those texts are doing a great injustice to students as the notion of inertial frame, in itself, has deep and difficult implications.
"The speed of light in vacuum is constant in all inertial reference frames".
But "Classical Dynamics" by Jerry B. Marion has:
"The velocity of light in free space is a universal constant independent of any relative motion of the source and observer".
I think there is no need of inertial frame, i.e c would be the same for any observer and source, even if is in an accelerating spaceship doing the measuring. If it is so, then I think those texts are doing a great injustice to students as the notion of inertial frame, in itself, has deep and difficult implications.