I am learning about these in Einstein's "Popular Exposition of SR and GR"
Can anyone suggest where I might learn a bit about them on the web as I am having a hard time looking it up.
For those unfamiliar it seems to involve coordinate systems on curved surfaces and from the notation involved it may have some connection to tensors (might be wrong there)
Can anyone suggest where I might learn a bit about them on the web as I am having a hard time looking it up.
For those unfamiliar it seems to involve coordinate systems on curved surfaces and from the notation involved it may have some connection to tensors (might be wrong there)