On 1/13/2025 9:02 PM, Alan Grayson wrote:
Using the LT, we have the following transformations of Length, Time,
and Mass, that is,
x --->x', t ---> t', m ---> m', where the primed quantities are the
transformed values in the primed frame, given their values in the
unprimed frame. The question is this; which of the quantities in the
primed frame are actually measured in the primed frame, and which are
appearances in the primed frame as seen by unprimed frame?
All of them. That's why it's *relativity* theory. x and t are
measurements in one frame and x' and t' are measurements in another
frame moving *relative* to the unprimed frame. And note the use of
"measurements" not "as seen". The two are different when you consider
things moving at a significant fraction of the speed of light.
How is this consistent, if it is, with the fact that when doing EM
measurements, E' and B' are the actual measurements of the fields in
the primed frame, given that E and B are measured in the unprimed
frame, but the same cannot be said of some, or all of the measurements
of Length, Time, and Mass? TY,
The same applies except the electromagnetic field is a tensor, so it
transforms by tensor like a sequence of LTs. How is that not consistent?
Brent
AG
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